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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…
Visual field map clusters in human frontoparietal cortex
http://biorxiv.org/content/early/2016/10/27/083493 [PDF] The visual neurosciences have made enormous progress in recent decades, in part because of the ability to drive visual areas by their sensory inputs, allowing researchers to reliably define visual…
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…
CNS 2016: Disruption of delay-period activity in human frontal eye fields causes systematic impairments in spatial cognition
Persistent neural activity in the prefrontal cortex (PFC) has been implicated as the neural mechanism by which primates maintain information in working memory (WM) that is no longer readily observable in the…
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…
Introducing iEye: an eye-tracking toolbox for MATLAB
Introduction This toolbox is meant to be both simple and powerful by creating a GUI interface that allows you to interact with your data visually inside the MATLAB environment. On top of…
Spatial attention: revisiting the invisible gorilla
Anyone who has sat through an Intro to Psychology course has probably seen the infamous “invisible gorilla” video. You know, the video where you are so busy counting basketball passes between a…
SFN 2014: Visual field maps in human association cortices
Recently, topographic maps in human frontal and parietal cortex were discovered using modified versions of the standard traveling wave method for mapping early visual cortex. The standard traveling wave method is effective…
SFN 2014: Rethinking the contribution of the dorsolateral prefrontal cortex to spatial working memory
Working memory is one of the most fundamental building blocks of human cognition. It is an integral part of most mechanisms involved in higher-level cognitive function such as fluid intelligence, reading comprehension,…
