Parietal and Frontal Cortex Encode Stimulus-Specific Mnemonic Representations during Visual Working Memory
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In this paper, the authors used fMRI-based reconstructions of remembered visual details from region-level activation patterns and found high-fidelity representations of a remembered orientation based on activation patterns in occipital visual cortex and in several sub-regions of frontal and parietal cortex.About:
This article is published in Neuron.The article was published on 2015-08-19 and is currently open access. It has received 317 citations till now. The article focuses on the topics: Working memory & Visual memory.read more
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Journal ArticleDOI
The Distributed Nature of Working Memory
Thomas B. Christophel,P. Christiaan Klink,P. Christiaan Klink,Bernhard Spitzer,Pieter R. Roelfsema,Pieter R. Roelfsema,Pieter R. Roelfsema,John-Dylan Haynes +7 more
TL;DR: It is proposed that the propensity to produce persistent activity is a general feature of cortical networks and may have to shift focus from asking where working memory can be observed in the brain to how a range of specialized brain areas together transform sensory information into a delayed behavioral response.
Journal ArticleDOI
The neuroscience of working memory capacity and training
TL;DR: Human imaging studies and neurophysiological recordings in non-human primates, together with computational modelling studies, reveal that training increases the activity of prefrontal neurons and the strength of connectivity in the prefrontal cortex and between the prefrontal and parietal cortex.
Journal ArticleDOI
The Role of Prefrontal Cortex in Working Memory: A Mini Review.
TL;DR: Results suggest that delay period activity in the PFC might be better understood not as a signature of memory storage per se, but as a top down signal that influences posterior sensory areas where the actual working memory representations are maintained.
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Prioritizing Information during Working Memory: Beyond Sustained Internal Attention.
TL;DR: An updated model of working memory is suggested, in which prioritization acts in multiple steps: first orienting towards and selecting a memory, and then reconfiguring its representational state in the service of upcoming task demands.
Journal ArticleDOI
Prior expectations induce prestimulus sensory templates.
TL;DR: Evidence is provided that a representation of the expected stimulus is present in the neural signal shortly before it is presented, showing that expectations can indeed induce the preactivation of stimulus templates.
References
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TL;DR: The Psychophysics Toolbox is a software package that supports visual psychophysics and its routines provide an interface between a high-level interpreted language and the video display hardware.
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TL;DR: The VideoToolbox is a free collection of two hundred C subroutines for Macintosh computers that calibrates and controls the computer-display interface to create accurately specified visual stimuli.
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Working memory,short-term memory, and general fluid intellegence : A latent-variable approach
TL;DR: The authors argue that working memory capacity and fluid intelligence reflect the ability to keep a representation active, particularly in the face of interference and distraction, and discuss the relationship of this capability to controlled attention, and the functions of the prefrontal cortex.
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Borders of multiple visual areas in humans revealed by functional magnetic resonance imaging
Martin I. Sereno,Anders M. Dale,Anders M. Dale,J. B. Reppas,Kenneth K. Kwong,John W. Belliveau,Thomas J. Brady,Bruce R. Rosen,Roger B. H. Tootell +8 more
TL;DR: Cortical magnification factor curves for striate and extrastriate cortical areas were determined, which showed that human visual areas have a greater emphasis on the center-of-gaze than their counterparts in monkeys.
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