Abstract
Electrical stimulation and chemical dorsolateral periaqueductal gray (SCPdl), elicits defensive responses associated with fear. The lateral septal area (ASL) receives serotonergic afferents from the dorsal raphe nucleus (DRN) and sends efferent projections to the periaqueductal gray. The purpose of this study is to investigate the modulatory mechanism of serotoninergic projections from th…