Absence of leftward bias in a line-bisection task is often used as a clinical hemispheric indicator, but the effect is not uniform in a normal population. Sex, handedness, and strategy variables affect the strength and direction of any bias.
References
1.
BrodieE. E., & PettigrewL. E. (1996) Is left always right? Directional deviations in visual line bisection as a function of hand and initial scanning direction. Neuropsychotogia, 34, 467–470.
