Emotionality in the rats was produced either by septal lesion or by placing the animals under different infantile living conditions. A factor analysis of the data shows that the emotionalities produced by the two treatments are different. Since four independent factors underlie emotionality, emotionality appears to be multi-dimensional; different indices used to measure emotionality do not assess the same dimensions.
References
1.
BradyJ. V.NautaW. J. H.Subcortical mechanisms in emotional behavior: affective change following septal forebrain lesions in the albino rats. J. comp. physiol. Psychol., 1953, 46, 339–346.
2.
DenenbergV. H.Critical periods, stimulus input, and emotional reactivity: a theory of infantile stimulatioc. Psychol. Rev., 1964, 71, 335–351.
3.
HarmanH. H.Modern factor analysis. Chicago: Chicago Univer. Press, 1960.
4.
HarrisonJ. M.LyonM.Role of the septal nuclei and components of the fornix in the behavior of the rat. J. comp. Neur., 1957, 108, 121–138.
5.
HessW. R.Diencephalon—autonomic and extra-pyramidal functions. New York: Grune & Stratton, 1954.
6.
KingF. A.Effects of septal and amygdoloid lesions on emotional behavior and conditioned avoidance responses in the rat. J. nerv. ment. Dis., 1958, 126, 57–63.
7.
TedeschiJ. T.HarburgE.The effect of infantile stimulation on emotionality and hoarding in rats. J. genet. Psychol., 1963, 103, 175–183.
