Results 11 to 20 of about 572,678 (236)

Morphometric analyses of the visual pathways in macular degeneration [PDF]

open access: yes, 2015
Introduction. Macular degeneration (MD) causes central visual field loss. When field defects occur in both eyes and overlap, parts of the visual pathways are no longer stimulated. Previous reports have shown that this affects the grey matter of the primary visual cortex, but possible effects on the preceding visual pathway structures have not been ...
Baseler, Heidi A.   +8 more
arxiv   +7 more sources

High-level visual prediction errors in early visual cortex. [PDF]

open access: yesPLoS Biology
Perception is shaped by both incoming sensory input and expectations derived from our prior knowledge. Numerous studies have shown stronger neural activity for surprising inputs, suggestive of predictive processing.
David Richter   +2 more
doaj   +3 more sources

Competing neural responses for auditory and visual decisions. [PDF]

open access: yesPLoS ONE, 2007
Why is it hard to divide attention between dissimilar activities, such as reading and listening to a conversation? We used functional magnetic resonance imaging (fMRI) to study interference between simple auditory and visual decisions, independently of ...
Grit Hein   +3 more
doaj   +1 more source

Differential roles of auditory and visual cortex for sensory detection in mice

open access: yesComptes Rendus Biologies, 2022
Sensory cortex encompasses the regions of the cerebral cortex that receive primary sensory inputs and is crucial for conscious sensory perception in humans. Yet, some forms of perception are possible without sensory cortex.
Ceballo, Sebastian   +3 more
doaj   +1 more source

Altered Vision-Related Resting-State Activity in Pituitary Adenoma Patients with Visual Damage. [PDF]

open access: yesPLoS ONE, 2016
To investigate changes of vision-related resting-state activity in pituitary adenoma (PA) patients with visual damage through comparison to healthy controls (HCs).25 PA patients with visual damage and 25 age- and sex-matched corrected-to-normal-vision ...
Haiyan Qian   +4 more
doaj   +1 more source

Connectivity changes underlying neurofeedback training of visual cortex activity. [PDF]

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

Insulin-like growth factor 1 (IGF-1) mediates the effects of enriched environment (EE) on visual cortical development. [PDF]

open access: yesPLoS ONE, 2007
Enriched environment (EE) has been recently shown to affect visual cortex development and plasticity, and to prevent dark rearing effects. The factors mediating EE effects on visual cortical development and plasticity are still unclear.
Francesca Ciucci   +5 more
doaj   +1 more source

Visual cortex cTBS increases mixed percept duration while a-tDCS has no effect on binocular rivalry.

open access: yesPLoS ONE, 2021
Neuromodulation of the primary visual cortex using anodal transcranial direct current stimulation (a-tDCS) can alter visual perception and enhance neuroplasticity. However, the mechanisms that underpin these effects are currently unknown. When applied to
Dania Abuleil   +2 more
doaj   +1 more source

Visual Motion Coherence Responses in Human Visual Cortex

open access: yesFrontiers in Neuroscience, 2022
Random dot kinematograms (RDKs) have recently been used to train subjects with cortical scotomas to perform direction of motion discrimination, partially restoring visual motion perception.
Andriani Rina   +8 more
doaj   +1 more source

Spatial modulation of visual responses arises in cortex with active navigation

open access: yeseLife, 2021
During navigation, the visual responses of neurons in mouse primary visual cortex (V1) are modulated by the animal’s spatial position. Here we show that this spatial modulation is similarly present across multiple higher visual areas but negligible in ...
E Mika Diamanti   +6 more
doaj   +1 more source

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