David S. March

Learn More
OBJECTIVE Postpartum depressive disorders lead to maternal disability and disturbed mother-infant relationships, but information regarding the rates of major depressive disorder in minority women is noticeably lacking. The goal of this study was to determine whether the risk factors for and rate of postpartum major depressive disorder in a predominantly(More)
The expression of subtypes of the GABA-A/benzodiazepine receptor complex has been studied during pre- and postnatal development of Macaca monkey visual cortex using complementary radioligand and immunocytochemical labeling. Type I benzodiazepine receptors were labeled directly by [3H]zolpidem. Type II receptors were determined by the amount of binding for(More)
GABA is a putative inhibitory neurotransmitter in adult mammalian visual cortex but also has been implicated as playing a crucial role in cortical information processing during development. In order to understand better the role of GABA during primate visual cortex development, we have examined the time course of GABAA and GABAB receptor ontogenesis in 18(More)
The effects of postnatal development, aging and the oestrous cycle on muscarinic acetylcholine receptor (mAChR) properties were examined in in vitro living slices of rat neocortex. Using the hydrophilic antagonist ([3H]NMS) to label cell surface mAChRs, an increase in both Bmax and Kd was found during the first postnatal weeks. These values peaked at(More)
Research typically reveals that outgroups are regarded with disinterest at best and hatred and enmity at worst. Working from an evolutionary framework, we identify a unique pattern of outgroup attraction. The small-group lifestyle of pre-human ancestors plausibly limited access to genetically diverse mates. Ancestral females may have solved the inbreeding(More)
The mechanisms underlying the allocation of visual attention toward dynamic content are still largely unexplored. Due to the number of variables present during dynamic content, it is often difficult to confidently determine what components direct visual attention. In this study, we manipulated the presence of audio in an attempt to explore the contribution(More)
We have investigated the relative distributions of type I and type II benzodiazepine receptors in fetal, neonatal and adult human visual cortex using [3H]flunitrazepam and the triazolopyridazine, CL218872. Microdensitometry of autoradiograms show that while both benzodiazepine subtypes are found in visual area 17 early in life, the type II benzodiazepine(More)
  • 1