Hemispheric differences in affective response: Effects of mere exposure
"The study demonstrated that the mere exposure effect -- increased liking of previously-exposed stimuli -- is enhanced when stimuli are exposed to the hemisphere that is most specialized to process that type of stimulus (words or faces)." --author-supplied description
Compton, R.J., Williamson, S., Murphy, S.G., & Heller, W. (2002). Hemispheric differences in affective response: Effects of mere exposure. Social Cognition, 20, 1-17.