Category / Working memory
Distinct contributions by frontal and parietal cortices support working memory
http://biorxiv.org/content/early/2017/01/31/104430 [PDF] Although subregions of frontal and parietal cortex both contribute and coordinate to support working memory (WM) functions, their distinct contributions remain elusive. Here, we demonstrate that perturbations to topographically organized…
SfN 2016: Visual field maps constrain working memory precision
http://www.abstractsonline.com/pp8/index.html#!/4071/presentation/18729 Working memory (WM) suffers from severe capacity limitations that vary greatly both between individuals and across the lifespan. Recent psychophysical work suggests that WM is a finite resource, and that this…
Human parietal cortex lesions impact the precision of spatial working memory
http://jn.physiology.org/content/early/2016/06/10/jn.00380.2016 [PDF] The neural mechanisms that support working memory (WM) depend on persistent neural activity. Within topographically organized maps of space in dorsal parietal cortex, spatially selective neural activity persists during WM…
Human dorsolateral prefrontal cortex is not necessary for spatial working memory
[fusion_text] http://www.jneurosci.org/content/36/10/2847.short [PDF] A dominant theory, based on electrophysiological and lesion evidence from nonhuman primate studies, posits that the dorsolateral prefrontal cortex (dlPFC) stores and maintains working memory (WM) representations. Yet, neuroimaging…
