Results 41 to 50 of about 2,715,091 (205)

Callosal connections of primary visual cortex predict the spatial spreading of binocular rivalry across the visual hemifields [PDF]

open access: yes, 2011
In binocular rivalry, presentation of different images to the separate eyes leads to conscious perception alternating between the two possible interpretations every few seconds. During perceptual transitions, a stimulus emerging into dominance can spread
Singer, W. ; https://orcid.org/   +18 more
core   +2 more sources

Studying the Role of Human Parietal Cortex in Visuospatial Attention with Concurrent TMS-fMRI [PDF]

open access: yes, 2010
Combining transcranial magnetic stimulation (TMS) with concurrent functional magnetic resonance imaging (fMRI) allows study of how local brain stimulation may causally affect activity in remote brain regions.
Bjoertomt, Otto   +21 more
core   +1 more source

Visual field map clusters in human frontoparietal cortex

open access: yeseLife, 2017
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 define visual areas reliably across individuals and across species.
Wayne E Mackey   +2 more
doaj   +1 more source

Lipid pathway alterations in Parkinson's disease primary visual cortex. [PDF]

open access: yesPLoS ONE, 2011
BackgroundWe present a lipidomics analysis of human Parkinson's disease tissues. We have focused on the primary visual cortex, a region that is devoid of pathological changes and Lewy bodies; and two additional regions, the amygdala and anterior ...
Danni Cheng   +10 more
doaj   +1 more source

The primary visual cortex creates a bottom-up saliency map [PDF]

open access: yes, 2005
It has been proposed that the primary visual cortex (V1) creates a saliency map using autonomous intra-cortical mechanisms. This saliency of a visual location describes the location's ability to attract attention without top-down factors.
Zhaoping, L., Zhaoping, L, Li Zhaoping
core   +1 more source

Connectivity changes underlying neurofeedback training of visual cortex activity.

open access: yesPLoS ONE, 2014
Neurofeedback based on real-time functional magnetic resonance imaging (fMRI) is a new approach that allows training of voluntary control over regionally specific brain activity.
Frank Scharnowski   +6 more
doaj   +1 more source

Primary visual cortex activity along the apparent-motion trace reflects illusory perception [PDF]

open access: yes, 2005
The illusion of apparent motion can be induced when visual stimuli are successively presented at different locations. It has been shown in previous studies that motion-sensitive regions in extrastriate cortex are relevant for the processing of apparent ...
Kriegeskorte, Nikolaus   +19 more
core   +2 more sources

Multi-voxel decoding and the topography of maintained information during visual working memory

open access: yesFrontiers in Systems Neuroscience, 2016
The ability to maintain representations in the absence of external sensory stimulation, such as in working memory, is critical for guiding human behavior.
Sue-Hyun eLee   +2 more
doaj   +1 more source

Why do children with autism spectrum disorder have abnormal visual perception?

open access: yesFrontiers in Psychiatry, 2023
Autism spectrum disorder (ASD) is associated with severe impairment in social functioning. Visual information processing provides nonverbal cues that support social interactions. ASD children exhibit abnormalities in visual orientation, continuous visual
Rongyi Zhou   +4 more
doaj   +1 more source

Why does brain damage impair memory? A connectionist model of object recognition memory in perirhinal cortex [PDF]

open access: yes, 2006
Object recognition is the canonical test of declarative memory, the type of memory putatively impaired after damage to the temporal lobes. Studies of object recognition memory have helped elucidate the anatomical structures involved in declarative memory,
Bussey, Timothy J.   +2 more
core   +1 more source

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