title: The prelimbic cortex directs attention toward predictive cues during fear learning.
abstract: The prelimbic cortex is argued to promote conditioned fear expression, at odds with appetitive research implicating this region in attentional processing. Consistent with an attentional account, we report that the effect of prelimbic lesions on fear expression depends on the degree of competition between contextual and discrete cues. Further, when competition from contextual cues is low, we found that PL inactivation resulted in animals expressing fear toward irrelevant discrete cues; an effect selective to inactivation during the learning phase and not during retrieval. These data demonstrate that the prelimbic cortex modulates attention toward cues to preferentially direct fear responding on the basis of their predictive value.
authors.affiliation: School of Psychology, University of New South Wales Australia, Kensington, New South Wales 2052, Australia m.sharpe@unsw.edu.au.
authors.forename: Melissa J
authors.initials: MJ
authors.lastname: Sharpe
authors.affiliation: School of Psychology, University of New South Wales Australia, Kensington, New South Wales 2052, Australia.
authors.forename: Simon
authors.initials: S
authors.lastname: Killcross
mesh_terms: D000818:Animals; D001288:Attention / Q000502:physiology*; D003214:Conditioning, Classical / Q000502:physiology*; D003463:Cues; D005239:Fear / Q000502:physiology*; D017397:Prefrontal Cortex / Q000502:physiology*; D051381:Rats