Abstract
This article examines how real-time emotions elicited by advertisements affect post-viewing judgments, with the goal of determining whether the key moments of real-time emotions lead to enhanced global retrospective judgments. Facial electromyography (EMG) was used to measure objective and unbiased moment-to-moment emotions. One hundred and one participants watched three destination advertisements while their real-time facial EMG data and self-report ratings were collected. The results demonstrate that tourism consumers’ average, peak, and end emotional experiences are correlated with their post-viewing attitude toward the advertisement. However, this study does not provide additional support for superiority of the peak and end moments in driving global retrospective evaluations in tourism advertising. The study advances our understanding of how consumers evaluate tourism advertisements based on more objective physiological data and extends the literature on key moments and retrospective evaluations. Implications and recommendations for future research are discussed.
Introduction
Each of us, on average, is exposed to up to 5,000 advertisements per day (Story, 2007), and marketers compete with thousands of other advertisers for the same consumer attention. Local and national tourism agencies invest significantly in destination advertising to appeal to potential tourists (Ruhanen, McLennan, & Moyle, 2012). In particular, destination marketers often use emotional advertisements to appeal to potential tourists. If tourists have never been to a particular destination, they must largely rely on their mental images of the destination, and associated affective responses, to make a choice between multiple alternatives (Walters & Sparks, 2012). Therefore, tourism advertisements are often emotion based (S.-B. Kim, Kim, & Bolls, 2014), which distinguishes them from advertisements for tangible goods that primarily focus on utility and functionality.
Emotion plays a significant role in shaping a consumer’s overall evaluation of an advertisement. Researchers have found emotional appeals affect attitude toward the advertisement (Edell & Burke, 1987), brand interest (Morris, Woo, Geason, & Kim, 2002), brand choice (Stayman & Batra, 1991), brand familiarity (Mano, 1996), and brand attitude (Derbaix, 1995). Hamelin, Moujahid, and Thaichon (2017) posit that an emotional advertisement can attract viewers’ attention, boost product attractiveness, and produce better product or brand recall. Although the relationship between ad-evoked emotion and various types of retrospective evaluations has been established, most studies still examine consumers’ emotions as a static construct. Few researchers have taken a closer look at tourism consumers’ moment-to-moment emotions or advanced a theory about which components or characteristics of consumers’ emotional experience are better determinants of their post-viewing overall judgments.
The peak–end rule in psychology considers that the peak and end moments of an individual’s affective experience have a decisive influence on their overall retrospective evaluations (Kahneman, Fredrickson, Schreiber, & Redelmeier, 1993). However, there is conflicting evidence: Some studies demonstrate the robustness of the peak–end rule in various contexts (e.g., Schreiber & Kahneman, 2000; Thomas, Olsen, & Murray, 2018), while several other studies report deviations from the peak–end rule (Hui, Meyvis, & Assael, 2013; Miron-Shatz, 2009; Mukherjee & Lau-Gesk, 2016).
The current study uses objective and unbiased psychophysiological measures to collect consumers’ moment-to-moment positive emotions and tests the peak–end rule in tourism advertising. Psychophysiological measures can record real-time emotional responses, which are beyond individuals’ conscious control. In addition, psychophysiological measures can overcome the criticisms of self-report questionnaire items by minimizing cognitive biases or socially desirable responses (Ravaja, 2004). Sometimes, participants may provide the answer that they perceive as aligning with the value system of the interviewer, rather than reflecting what they really felt (Hamelin et al., 2017). Li, Walters, Packer, and Scott (2016) empirically demonstrated the superiority of psychophysiological measures over self-reporting measures in collecting consumers’ emotional responses to tourism TV commercials.
This research contributes to both tourism and advertising literature by illustrating how consumers’ moment-to-moment emotions affect their post-viewing attitudes and behavioral intentions. Using real tourism advertisements designed to elicit positive emotions among viewers, this study advances the current work by providing a theoretical basis for predicting which specific aspects of the advertisements (i.e., the average, peak, or end emotional moments) are the key determinants of post-viewing global evaluations. This study is one of the first to use objective measures to capture consumers’ moment-to-moment emotions, which extends existing studies that primarily focus on recollection of the key affective moments via self-reporting and the influence of emotions on overall evaluations. This research contributes to the current debate on the generality and boundary conditions of the peak and end rules. From a practical perspective, this research aids in the design of tourism advertisements, with a view toward making the most use of advertisement time to produce the preferred emotion patterns among viewers.
Literature Review
Emotion in Tourism Advertising
Bagozzi, Gopinath, and Nyer (1999) define emotion as a psychological state resulting from cognitive appraisals of events or environments, which is accompanied by physiological responses and expressive behavior. Advertisement-elicited emotion is regarded as having the same level of importance as the conscious and rational thoughts consumers may have when viewing advertisements (Micu & Plummer, 2010). Marketers use various strategies to evoke consumers’ positive emotional responses to engage viewers with the advertisements (Teixeira & Wedel, 2012).
Two prominent approaches to describing individuals’ emotional responses are frequently used in advertising: the basic emotion and dimensional approaches. The basic emotion approach includes several subtheories (most based on cross-cultural studies) that identify a finite set of discrete emotions (Lzard, 1992; Plutchik, 1982). For instance, Plutchik (1980) identifies eight basic emotions which includes surprise, expectancy, disgust, acceptance, sadness, joy, anger, and fear. He believes that more complicated emotions are mixtures of these basic or primary emotions.
A second approach—the dimensional approach—identifies a set of common dimensions of affect that differentiate specific emotions from one another. For example, pleasure and arousal are the two main dimensions applied in describing consumers’ emotional responses to advertising (Holbrook & Batra, 1987; Olney, Holbrook, & Batra, 1991). The dimensional approach is considered more parsimonious than the basic emotion approach, because it classifies emotions along two dimensions: pleasure and arousal (Mauss & Robinson, 2009). Furthermore, emotion in advertising is often short lived and rarely seen in its pure form, thus the basic emotion approach focusing on discrete emotions is problematic (Huang, 2001). Therefore, the dimensional approach is adopted in this study to describe consumers’ emotions in response to tourism advertising.
Past advertising research demonstrates that ad-evoked emotion is positively related to various post-viewing global evaluative responses, such as attitudes toward the advertisement and brand (Edell & Burke, 1987), brand familiarity (Mano, 1996), brand choice (Stayman & Batra, 1991), brand attribute evaluations (Burke & Edell, 1989), attention to the advertisement (Olney et al., 1991), and recall (Pieters & de Klerk-Warmerdam, 1996). Recently, ad-evoked emotion has taken a central role in research on individual attitudes toward safe driving. Hamelin et al. (2017) used advertisements featuring messages about the importance of safe driving to demonstrate that consumers who watched the highly emotive versions presented greater safe-driving attitude scores compared with those who viewed the less emotive versions.
In tourism research, the majority of research to date has focused on identifying the most effective visual stimuli in an advertisement (e.g., Chou & Lien, 2012; Luoh & Lo, 2012; Wang, Hsieh, & Chen, 2002). For instance, Luoh and Lo (2012) investigated the influence of gender when exploring the effectiveness of chef endorsements in restaurant advertisements. Their experiment reveals that a middle-aged male chef is more likely to convince consumers than a middle-aged/young female chef. However, this research does not explain the psychological mechanism through which consumers processed the advertising messages (Li et al., 2016). Walters and Sparks (2012) found that the emotions evoked by tourism advertisements are able to predict consumers’ purchase interest and intentions. However, ad-evoked emotions were measured by self-report scales, which are not able to capture the dynamic process of tourism consumers’ moment-to-moment emotions. Li, Walters, Packer, and Scott (2017) further investigated the role of emotion in predicting tourism advertising effectiveness and found that pleasure, rather than arousal level, was positively related to consumers’ attitudes and behavioral intentions.
In summary, existing studies have shown the pivotal role ad-evoked emotion plays when explaining consumers’ post-viewing judgments. While recent studies have demonstrated the importance of ad-evoked emotion in influencing advertising evaluation, extant research does not examine consumers’ moment-to-moment affective viewing experience, particularly the impact of the key moments of their affective watching experience on retrospective evaluations.
The Peak–End Rule
The peak–end rule posits that individuals base their retrospective evaluation of an experience or event on the peak moment (the most affectively intense moment of an experience) and the final moment (Kahneman et al., 1993), rather than on total amount of pain or pleasure experienced. Due to memory instability, only a limited information was available for individuals to evaluate their entire experience at any given recall time, it is possible that this limited information was dominated by the peak and end moments (Kemp, Burt, & Furneaux, 2008). Previous research has confirmed the peak–end rule across various situations with negative stimuli such as aversive sounds (Schreiber & Kahneman, 2000) and pain (Kahneman et al., 1993). Kahneman et al. (1993) have also demonstrated the robustness of peak–end rule with pleasant stimuli (i.e., film clips of playful penguins; Fredrickson & Kahneman, 1993). Research has also shown that neither the total duration of an event or experience (Kemp et al., 2008; Varey & Kahneman, 1992) nor the number of the peaks (Schreiber & Kahneman, 2000) is important when an individual is constructing an overall judgment of an experience.
In the field of marketing, Baumgartner, Sujan, and Padgett (1997) used a computerized “feeling monitor” to track viewers’ real-time “liking” of an advertisement and found that the peak and end moments were related strongly with the overall evaluation that occurred after the consumer had viewed the advertisement. Thomas et al. (2018) found additional support for the peak–end rule in the context of financial decision making and charity advertisements. The peak–end rule was also found to be applicable to the understanding of the mechanisms that form consumers’ reference prices (De Maeyer & Estelami, 2013).
However, some studies have reported deviations from the peak–end rule. In attempting to locate the “key selling second” of an advertisement, Polsfuss and Hess (1991) found that the overall liking of the advertisement was more closely associated with the average rating scores than with peak or end moments. Hui et al. (2013) found that the role of specific patterns, such as peak moments in driving the overall judgment, is limited in the context of TV shows. Rather, the final segment was found to have a greater effect on the overall evaluation. Asking participants to report their feelings from the previous day, Miron-Shatz (2009) found that the average, rather than the peak or end segment, was the best indicator of retrospective evaluations of the day. Similarly, the power of peak moments in predicting the overall evaluative outcome in the context of video games was not confirmed in the work of Mukherjee and Lau-Gesk (2016). Rather, they found that end moments were correlated with the evaluation, especially when the end sections were meaningful.
These conflicting evidences could be partially attributable to the measurements used to capture emotions. The majority of studies to date have measured moment-to-moment responses via a self-report method, although the specific measure may vary (Geng, Chen, Lam, & Zheng, 2013; Kemp & Chen, 2012; Kemp et al., 2008). For instance, Mukherjee and Lau-Gesk (2016) asked game players to report their feelings from the beginning to the end of the arcade gaming session by drawing a continuous line. This line could be further used to showcase participants’ emotional experience. In contrast, Kemp et al. (2008) used Likert-type scale (1 = extremely unhappy to 9 = extremely happy) and asked participants to recall and rate their emotions at different times (e.g., current, best, or worst moments). In essence, most of the research in this area has relied on participants’ reconstruction of their completed experience, despite the fact that participants may not have been able to remember the details of their experience accurately. This measurement issue needs to be addressed before further testing the peak–end rule in various contexts.
The traditional self-report method, in which participants have to rely on their memory to recall their affective experience or feelings, has been widely criticized (Brodien Hapairai, Walters, & Li, 2018; Kim & Fesenmaier, 2015; Li et al., 2016). Inevitably, the recollection of the emotional experience may involve a series of cognitive biases, which could distort an individual’s original emotion (Ravaja, 2004). As noted by Kemp et al. (2008), “Ordinary people may recall experiences quite inaccurately or in a way that has been greatly distorted” (p. 133).
Psychophysiological measures provide an alternative measurement technique that involves attaching sensors to participants and recording their emotional responses in real time. Psychophysiological measures of emotions are based on individuals’ automatic body responses that are largely beyond their conscious control, and thus they are less likely to be influenced by cognitive bias (Kim & Fesenmaier, 2015). Possible measurements include facial electromyography (EMG), skin conductance, and heart rate measures.
Compared with traditional questionnaire methods, one of the advantages of psychophysiological measures is continuality. Emotions are continuous and dynamic, and the psychophysiological measures enable consumers’ moment-to-moment emotions to be tracked, which in turn can be used to examine the emotional flow pattern (Li et al., 2016). Practically, these real-time emotional curves can be used to fine-tune advertisements (Hui et al., 2013).
Psychophysiological Measures of Emotions in Tourism
Given the criticism of self-report measures of emotion, recent research in the field of tourism investigated tourism consumers’ moment-to-moment responses via psychophysiological measurements. For example, Kim and Fesenmaier (2015) measured travelers’ emotions in natural settings based on skin conductance and discussed the potential of using psychophysiological measures in designing and managing tourist experiences. Kim et al. (2014) focused on tourism consumers’ skin conductance and heart rate responses to two types of advertising communications (video vs. high-imagery audio advertisements) and found that the arousal level evoked by video was higher than that elicited by audio advertisements. Li and his colleagues tested the capabilities of facial EMG and skin conductance in tracking consumers’ real-time emotional responses to tourism advertisements (Li et al., 2016), and further explored the relationship between ad-evoked emotional responses and tourism advertising effectiveness using both self-reporting and psychophysiological measures (Li et al., 2017).
While psychophysiological measurements can measure moment-to-moment emotional responses, previous research adopting such measures in tourism and marketing has typically used an average score as a proxy measure to indicate consumers’ emotional states and examine the effects of emotions on other advertising measures such as attitude toward advertisement (Kim et al., 2014; Li et al., 2017; Ravaja & Somervuori, 2013). This is problematic, because both a flat emotion pattern and emotion curves with positive or negative slopes could generate the same mean score (Hughes, 1992), even though consumers may not evaluate them equally.
This study used facial EMG to track consumers’ moment-to-moment positive emotional responses to tourism advertisements, with an emphasis on the effects of key emotion moments on retrospective global evaluations. Facial EMG is the modern measurement of individuals’ subtle facial muscle contractions (Bolls, Lang, & Potter, 2001). Facial EMG measures the electrical signal produced by the occurrence of action potentials across different facial muscle groups. In particular, the experience of positive emotions is closely related to the activation of the zygomatic muscle group (around the cheek), and negative emotions are indicated by contractions of the corrugator muscle group (Lang, Greenwald, Bradley, & Hamm, 1993). Li et al. (2016) have demonstrated the capabilities of facial EMG in tracking tourism consumers’ positive emotional responses to tourism advertisements. Tourism produces hedonic consumption experiences and involves fantasy, feelings, and fun (Williams, 2006); hence, it is appropriate that the current study focuses on positive emotional responses.
Research Model and Hypothesis Development
Based on the peak–end rule, we investigated the effect of ad-evoked moment-to-moment emotions on consumers’ post-viewing global evaluations in the context of tourism advertising. Consistent with previous research (e.g., Chang, Wall, & Tsai, 2005; van der Veen & Haiyan, 2014; Luoh & Lo, 2012), this study measured post-viewing global evaluations using attitude toward the advertisement (Aad), postexposure brand attitude (Abp), and purchasing intention. The majority of existing research adopting self-report measures of emotion has confirmed the direct effect of ad-evoked emotions on Aad (Pieters & de Klerk-Warmerdam, 1996), Abp (Wells, 1989), and purchasing intention (Shahin Sharifi, 2014). The indirect effect of ad-evoked emotions on purchase intention via Aad and Abp has also been established (Batra & Ray, 1986; Pelsmacker & Geuens, 1998). In the context of tourism, postexposure brand attitude is represented as postexposure destination attitude (Adp) whereas purchase intention is often represented as visit intention (VI). The model to be evaluated in this study is illustrated in Figure 1.

The Research Model
As stated above, when consumers make global evaluations of an emotional tourism advertisement, their judgments are affected by their emotions in response to the advertisement. The peak–end rule posits that the peak and end moments are key emotional moments and are more predictive of consumers’ post-viewing evaluation than a temporal integration or sum of the affective values associated with a tourism advertisement. Given that tourism advertisements are more likely to incite positive emotions, the following hypotheses are centered on pleasant, rather than aversive, advertisements:
Hypothesis 1a0: Ad-evoked positive emotion (average/peak/end) is not able to predict Aad.
Hypothesis 1aa: Ad-evoked positive emotion (average/peak/end) is able to predict Aad.
Hypothesis 1b0: The correlation between peak/end moments and Aad is not stronger than that between the average emotion intensity level and Aad.
Hypothesis 1ba: The correlation between peak/end moments and Aad is stronger than that between the average emotion intensity level and Aad.
Hypothesis 2a0: Ad-evoked positive emotion (average/peak/end) is not able to predict Adp.
Hypothesis 2aa: Ad-evoked positive emotion (average/peak/end) is able to predict Adp.
Hypothesis 2b0: The correlation between peak/end moments and Adp is not stronger than that between the average emotion intensity level and Adp.
Hypothesis 2ba: The correlation between peak/end moments and Adp is stronger than that between the average emotion intensity level and Adp.
Hypothesis 3a0: Ad-evoked positive emotion (average/peak/end) is not able to predict VI.
Hypothesis 3aa: Ad-evoked positive emotion (average/peak/end) is able to predict VI.
Hypothesis 3b0: The correlation between peak/end moments and VI is not stronger than that between the average emotion intensity level and VI.
Hypothesis 3ba: The correlation between peak/end moments and VI is stronger than that between the average emotion intensity level and VI.
Hypothesis 40: Ad-evoked positive emotion (average/peak/end) does not have an indirect positive impact on VI via Aad and Adp.
Hypothesis 4a: Ad-evoked positive emotion (average/peak/end) has an indirect positive impact on VI via Aad and Adp.
Method
Participants
We conducted this research in a research laboratory located in an Australian university. One hundred and one university students and staff volunteered to be the participants in this study in exchange for an AUD10 gift voucher. A small sample is common in studies involving psychophysiological measures (Ravaja & Kallinen, 2005; Ravaja & Somervuori, 2013) and did not present any validity issues concerning the necessary analysis techniques. Demographic characteristics of the samples are shown in Table 1.
Demographic Characteristics of the Participant Samples
Stimuli
The stimuli consisted of three 60- to 90-second destination advertisements from www.myswitzerland.com, the website of a Switzerland-based destination marketing organization. These advertisements use the same actors, but each of the advertisements present Switzerland as offering a distinct tourism experience ranging from a city escape, to perfect winter holiday destination, to a place to spend one’s summer break. The hypotheses in this study rely on the evocation of positive emotions, and the Switzerland tourism promotion advertisements present a significant element of humor and were therefore deemed appropriate for the purposes of this study.
Emotion Measures
Viewers’ positive emotional responses to the advertisements were collected and recorded using a facial EMG monitor that required the attachment of electrodes to participants’ zygomatic major muscles. A trained researcher, proficient in the use of facial EMG, carefully located the recording sites on each participant’s face in accordance with published facial EMG guidelines (e.g., Fridlund & Cacioppo, 1986). Consistent with the work of Baumgartner et al. (1997), we used the last second of each advertisement as the indicator of final moment. The peak moment was represented by the maximum of the facial EMG trace. The mean facial EMG score was used as the indicator of average affective intensity in this study (Boxtel, 2001).
Global Retrospective Evaluation
The scales measuring Aad, Adp, and VI were adapted from prior research, as shown in Table 2. The authors considered the theoretical foundations of one question compared with multiple questions to capture a construct (Dolnicar, 2013; Rossiter, 2011) and concluded that using a single question was suitable for the research aims and additionally reduced respondent fatigue.
Measures of Global Retrospective Evaluations and Preexposure Measures of Covariates
Covariates
Participants’ moods and preexposure attitude toward the destination (Switzerland) were included to control for their effect on dependent variables.
Procedure
Participants were tested one at a time. Before the commencement of the experiment, each participant indicated their current mood and existing attitude toward Switzerland via a questionnaire. A practice video (an unrelated tourism advertisement) was first shown to the participants to allow them to become familiar with the procedure, while simultaneously allowing the investigator to check the quality of the facial EMG data. To reduce the risk of participant fatigue, each participant was randomly assigned to one of the three Switzerland tourism promotion advertisements. After watching the tourism advertisement, each participant completed a questionnaire regarding their Aad, Adp, and VI. Demographic information such as gender, age, and prior experience with the advertisement or destination was also collected.
Data Analysis
AcqKnowledge® software was used to analyze facial EMG data. To evaluate the structural model, the partial least squares (PLS) path modeling method (Hair et al., 2012) was used with SmartPLS 3.0 software (Ringle, Sven, & Becker, 2015). The PLS path modeling method has the advantage of being able to handle small sample sizes and process data that are not normally distributed. The PLS was thus considered more suitable than the commonly used covariance-based structural equation modeling technique for this study. To compare the differences between two correlation coefficients that involve a common variable, Steiger’s z test was used with an online calculator (Hoerger, 2013; Steiger, 1980).
Results
Scale Reliability and Validity
Mood is the only construct that has multiple items in this study. The value of the average variance extracted was 0.726, which was well above the minimum threshold of 0.50 (Henseler, Ringle, & Sinkovics, 2009). Thus, the convergent validity of the mood scale was established. Indicator reliability was evaluated by checking indicator loadings. Four items measuring mood (0.979, 0.897, 0.788, and 0.721) showed significant standardized loadings above 0.70, p < .01. The high Cronbach’s alpha and composite reliability (ρ) values (all >0.80) also demonstrate good internal consistency. The value of the square root of average variance extracted for the mood scale was 0.852, which is greater than the correlation values between mood and other constructs. Therefore, the discriminant validity was also well established.
Evaluation of the Structural Model (Hypotheses Testing)
This section reports the results separately for the structural model with average emotion intensity, peak emotional experience value, and final emotional experience value as the independent variables. To test the hypotheses proposed earlier, a nonparametric bootstrapping analysis (5,000 subsamples and 101 cases) was used to calculate the t values and significance level. The outcome of the structural model test using different emotion indexes is shown in Table 3.
Results of Hypothesis Testing With Different Emotion Indexes
Note: Aad = attitude toward the advertisement; Adp = postexposure attitude toward the destination; VI = visit intention; ns = not significant.
We applied a nonparametric bootstrapping route to test the significance of the partial least squares path modeling results.
p < .05. **p < .01 (two-sided test; number of observations = 101).
Average Emotion Intensity
Figure 2A displays the outcome of the structural model when positive emotions were represented by average emotion intensity. The PLS path model estimation provided an R2 value of .083 for Aad, .661 for Adp, and .715 for VI, respectively. In support of Hypothesis 1aa, we found that the average emotion intensity had a significant positive impact on Aad. However, the direct effects of emotions on Adp (Hypothesis 2aa) and VI (Hypothesis 3aa) are not supported. To test Hypothesis 4a, we conducted a mediation analysis using a nonparametric bootstrapping procedure. In support of Hypothesis 4a, we found that Aad and Adp fully mediated the effect of emotions on VI.

Partial Least Square Result of the Structural Models With Different Emotion Indexes
Peak Emotional Experience
Figure 2B displays the outcome of the structural model test when positive emotions were indexed by peak emotional experience. The PLS path model estimation provided an R2 value of .09 for Aad, .66 for Adp, and .737 for VI. Hypothesis 1aa received strong support when emotional responses were represented by the peak moment value. However, the direct effects of emotions on Adp (Hypothesis 2aa) and VI (Hypothesis 3aa) are not supported. Ad-evoked emotion had an indirect impact on VI via Aad and Adp, which supports Hypothesis 4a.
Final Emotional Experience
Figure 2C displays the outcome of the structural model test when positive emotions were represented by final emotional experience. The PLS path model estimation provided an R2 value of.07 for Aad, .662 for Adp, and .739 for VI. We found a significant impact of emotion on Aad, which supports Hypothesis 1aa. Furthermore, Hypothesis 2aa and Hypothesis 3aa positing a direct effect of emotion on Adp and VI, respectively, are not supported. The results support Hypothesis 4a that Aad and Adp mediate the impact of emotion on VI.
The Peak–End Rule
According to the Steiger’s z test, we compared the correlation coefficients between peak moment/average and Aad and yielded a z value of −0.246, p = .805, which indicates the correlation coefficient of peak moment and Aad is not significantly higher than that of average score and Aad. Similarly, we compared the correlation coefficients between end moment/average and Aad and obtained a z value of 0.405 with p = .68. These results reveal that the peak and end moments are no better than the average emotion intensity in predicting the attitude toward the advertisement when more objective emotion measurements were employed. Therefore, Hypothesis 1ba, Hypothesis 2ba, and Hypothesis 3ba are rejected.
Discussion
This section discusses the findings of this article in light of theoretical and practical implications, which is followed by the conclusions, limitations, and recommendations for future research.
Ad-evoked emotions were found to be positively related with Aad. In addition, in the study, emotion exerted a significant positive impact (indirect) on VI via Aad and Adp. The results supported in this study via objective measures of emotion are consistent with previous advertising studies that measured ad-evoked emotion via a self-report questionnaire (Batra & Ray, 1986; Geuens & Pelsmacker, 1998) and reveal that emotion affects VI indirectly. Using facial EMG, this result confirms the central mediating role of tourism consumers’ attitudes and implies that attitude works as one of the intermediaries of information for the subsequent intention to travel. This study found that ad-evoked emotions influenced tourism consumers’ overall attitudes toward the advertisement itself, which in turn exerted a positive influence on their impression of the destination advertised in the advertisement. Finally, the change of their attitudes may motivate them to travel.
This study demonstrates that the peak moment has a significant influence on attitude toward the advertisement. This finding dovetails with the extant literature that highlights the important influence of the peak moment in overall judgments (Baumgartner et al., 1997). Past research suggests that the peak experience is distinctive and has a superior recall, which results in the stronger correlation with subsequent overall evaluation (Montgomery & Unnava, 2009). In our study, the participants were exposed to tourism advertisements with humor appeals, and their peak moments correlated with what they perceived as the funniest scenes (i.e., greatest cheek muscle movements). In other words, the peak could be viewed as the distinct moment, which makes this time point memorable, and serves as an important basis when individuals must evaluate their entire affective viewing experience. However, our study also found that the peak moment could not dominate the average emotion intensity in determining the overall attitude. While the correlation coefficient between peak moment emotion intensity and overall attitude is higher than those between end moment intensity and attitude, and between average intensity and attitude, the Steiger’s z test shows that the difference is not significant.
One possible explanation lies in whether the peak moment is distinct enough to be influential. Montgomery and Unnava (2009) posit that peak effects cannot lead to better recall if the peak moment is not clearly distinguished from surrounding stimuli. Our work consists of three tourism advertisements using humor appeals. It is possible that participants may have perceived the peak moment as funny, but not distinct or meaningful enough. When evaluating the advertisement and the destination, the participants may have still assessed if their goals have been achieved or if the entire advertisement exposed reflected the holiday they desired before. From this point of view, the role of the funniest part of an advertisement in affecting the global retrospective evaluation may be weakened.
The results of this study also show that the end emotional experience can significantly influence consumers’ attitudes toward an advertisement. As indicated by Hui et al. (2013), the significant relationship between later moments rating and overall judgment may not be caused by later segments having a greater effect on evaluations. Instead, the end segment may already partly reflect overall evaluation. Hui et al. (2013) further argue that “as the show progresses, the moment to moment ratings may not be only influenced by what is happening on the screen at the moment, but also by what has happened on the screen so far” (p. 236). Fredrickson (2000) contends that the endings convey relative certainty and offer viewers one route to comprehend what their global impression really is. Thus, the final moment could serve as an effective indicator of consumers’ overall judgments. In addition, the time interval between the final segment and moment when the overall evaluation is made is the shortest, which is explained by Baumgartner et al. (1997) and Biswas, Labrecque, Lehmann, and Markos (2014) as the “recency effect.” Montgomery and Unnava (2009) further explain that the most recent segments have better recall, especially when participants reported their evaluation immediately after an experience.
On the other hand, some studies have suggested that the typically heightened meaningfulness of the end moment causes the end segment to be influential (Ersner-Hershfield, Mikels, Sullivan, & Carstensen, 2008; Kurtz, 2008). Mukherjee and Lau-Gesk (2016) manipulated the end of an experience (high meaningfulness vs. low meaningfulness) and found that the end segment only exerted an impact on overall evaluation when it was meaningful, thus ruling out the memory artifact that is based on “recency effect.” In fact, the evaluation of whether the end of an advertisement is meaningful depends on viewers’ goals. As the advertisement progresses to the end, if the viewers’ goals are assessed to be achieved, then the end moment may be appraised as meaningful (Fredrickson, 2000).
This study did not find that the end moment was better than the average emotion intensity in terms of predicting consumers’ overall evaluations. Many tourism advertisements end with the destination’s logo or slogan, which may reduce the meaningfulness of the end moment. For example, one of the advertisements used in this study showed a slogan “Switzerland, the original winter destination” at the end of the advertisement. If this slogan is inconsistent with a potential tourist’s expectation of Switzerland as a destination, the degree of goal achievement would be weakened (Fredrickson, 2000), which would make the final segment less influential. As stated by Fredrickson (2000), peak or end moments outweigh the consumer’s overall feelings, because they carry a wealth of self-relevant information; if the peak and end moments fail to achieve the viewer’s goals, their impact on the viewer’s evaluation may be weakened.
Overall, the results from this study partly confirm the peak and end rule and reveal that the peak, end, or average emotions can all predict consumers’ post-viewing global judgments. However, the peak and end moments were not found to be more influential than the average emotion in driving consumers’ attitudes. This highlights the importance of valid and reliable measurement of emotion and raises concern over the possible overestimation of the importance of the peak and end segments emphasized by previous studies. Further research is needed to investigate whether designing destination marketing videos with more meaningful and distinct peak and end moments might contribute to their effectiveness in influencing attitudes to a destination.
Practical Implications
Our findings have direct implications for tourism destination marketers seeking to make effective advertisements and maximize viewers’ overall evaluations. The results of this study show that the peak and end emotional experience of an advertisement are as important as the overall emotional experience. Thus, producers may optimize resources at critical points, such as the end of an advertisement, or create a peak experience (e.g., exciting or funny scene or plots) for the viewers. Facial EMG and other psychophysiological measures provide an appropriate measurement tool to test if a peak experience can be evoked among potential tourists.
While creating a peak emotional experience is important, advertisements should bolster personal meaning to coincide with these key moments in order to achieve the most favorable evaluations (Mukherjee & Lau-Gesk, 2016). In tourism marketing, the peak moment should not only be humorous but also reflect what the target audience really desire when seeking a destination for their holidays. For instance, Kim, Guo, and Agrusa (2005) found that mainland Chinese tourists considered “beautiful scenery” and “safety” as most important factors when choosing an overseas destination. Therefore, destination marketers could integrate these elements into their consideration when designing advertisements targeting Chinese tourists.
Our findings also indicate that the peak and end emotional experiences are no better than an average emotion intensity when evaluating “overall” attitude toward an advertisement. Average emotions reflect participants’ overall affective impression of the stimuli and can be used as a proxy to predict their retrospective evaluation (Miron-Shatz, 2009). Thus, the destination advertisement maker may also need to improve the quality of the entire advertisement instead of only specific moments. In addition to evoking a memorable peak experience among potential viewers, the designer should create an innovative advertisements story line to keep viewers stay focused while watching or design the best scene change in a video sequence through pretesting.
Limitations and Recommendations for Future Research
This study has certain limitations. First, we focused on tourism consumers’ moment-to-moment positive emotions, and thus only included humorous advertisements as the stimuli. As noted by Kemp et al. (2008), it is still not clear whether the peak and end rule will apply in the mixed experience that involve both positive and negative emotions. Thus, it may be insightful for future research to test the applicability of the peak–end rule in other types of tourism advertisements (e.g., those advertisements adopting adventure, family, and romance appeals) that are more likely to produce mixed emotions.
Second, the small sample in this study may, to some extent, limit the decisive influence of the peak and end moment in driving tourism consumers’ post-viewing attitude. Future studies could enlarge the sample size and test the influence of the key moments in shaping tourism consumers’ retrospective judgments.
Third, this study adopted the dimensional approach to describing tourism consumers’ emotional responses to the advertisements. While consumers’ pleasure level was measured by facial EMG in this study, their arousal level was not measured. This is due to the consideration of initial results derived from the pretesting stage: All of three humorous advertisements were demonstrated to be capable of evoking viewer’s peak emotional experience (indicated by a significant increase in their facial EMG trace), which provided an ideal condition for testing peak and end rule in the context of tourism advertising. However, we found that it was hard to identify viewer’s peak moment with their arousal data measured by skin conductance device. It is possible that these advertisements were designed to elicit viewer’s pleasantness rather than excitement. Therefore, future studies could select tourism advertisements with adventure or excitement appeals and examine the applicability of the peak–end rule in testing the effect of moment-to-moment arousal on consumers’ post-viewing evaluations. Eye tracking measures may also be combined with emotion measurements to identify the specific stimuli viewers focus on when their emotion responses are elicited.
Fourth, individuals only have a limited amount of information when asked to recall or evaluate their overall experience, and this limited information may include peak and end experiences, which was the rationale of the peak and end rule proposed by Fredrickson and Kahneman (1993). However, this limited information may also include the beginning experience or the most unusual experience (Kemp et al., 2008). Future research could further explore which particular aspect of consumers’ moment-to-moment emotional responses could best explain their post-viewing global evaluation.
Finally, the participants in this study were instructed to focus on the stimuli from start to finish. However, consumers in real life may turn their attention to other tasks (e.g., check their phones or talk to their friends or families) while watching the advertisements. Future research may replicate our study in a more natural environment and further explore the impact of selective exposure and attention on the correlation between ad-evoked moment-to-moment emotions and evaluative responses to advertising.
Conclusion
This study contributes to the literature on tourism advertising and provides empirical evidence to shed light on how consumers’ moment-to-moment emotional responses, especially those key moments such as peak and end parts, influence their overall evaluations. The results show that average emotion intensity, as well as peak and end emotional moments, all significantly predicted consumers’ attitude toward the advertisements. In this study, the peak and end moments were no better than average intensity emotion in this regard.
Our research extends the current knowledge about the mechanism by which moment-to-moment emotional responses drive consumers’ overall evaluations in the context of tourism advertising. While past research on tourism advertising has mostly focused on the investigation of the most effective copy elements in the advertisement (Li et al., 2016), such as images of tour leaders (Wang et al., 2002), gender of the endorser (Luoh & Lo, 2012), and pictorial and textual stimuli (Walters, Sparks, & Herington, 2007), insights on the psychological mechanism by which the consumers process the advertising stimuli are still rarely explored. Although recent research has focused on the role of ad-evoked emotions in predicting tourism advertising effectiveness, most of this research still treats consumers’ emotions as a homogeneous construct, rather than as a dynamic process. Yet pinpointing the moment-to-moment emotional responses, especially the key moment effects on overall evaluation, is at the crux of its growing popularity. This study is a preliminary step in this direction. The results of this study add to a growing body of work that has questioned the applicability of the peak–end rule and have both theoretical and practical implications for tourism scholars and practitioners.
Footnotes
Authors’ Note:
This research received grants from the National Natural Science Foundation of China (No. 71804154), Fundamental Research Funds for the Central Universities (No. 20720181030/ZK1095).
