PACAP neurons of the ventral dentate gyrus are not involved in fear acquisition.
The neural mechanisms underlying learned affective responses remain a core question in affective neuroscience. The ventral dentate gyrus (vDG) has been implicated in variants of fear conditioning (i.e., contextual and cued) and may rely on pituitary adenylate cyclase-activating polypeptide (PACAP) pathways, given their...