SEX DIFFERENCES IN ACETYLCHOLINESTERASE MODULATION DURING SPATIAL AND FEAR MEMORY EXTINCTION IN THE AMYGDALA; AN ANIMAL STUDY IN THE SINGLE PROLONGED STRESS MODEL OF PTSD

Background and purpose: Men and women show different reactions to trauma and that is believed to be the reason behind the higher prevalence of post-traumatic stress disorder (PTSD) in women.Cholinergic signaling has long been known to be involved in the processing of fear-related information and the amygdala is a critical center for fear modulation

We present a taxonomic revision of Cremastosperma, a genus of Neotropical Annonaceae occurring in lowland to premontane wet forest, mostly in areas surrounding the Andean mountain chain.We recognise 34 species, napoleon concealer describing five as new here: from east of the Andes, C.brachypodum Pirie & Chatrou, sp.nov.and C.dolichopodum Pi