Results 11 to 20 of about 2,634,653 (301)

A computational dynamical model of human visual cortex for visual search and feature-based attention [PDF]

, 2012
Visual attention can be deployed to locations within the visual array (spatial attention), to individual features such as colour and form (feature-based attention), or to entire objects (object-based attention).
Harrison, David Graham
core   +6 more sources

Distinct causal influences of parietal versus frontal areas on human visual cortex: evidence from concurrent TMS-fMRI [PDF]

, 2010
It has often been proposed that regions of the human parietal and/or frontal lobe may modulate activity in visual cortex, for example, during selective attention or saccade preparation.
Blankenburg, Felix, Bjoertomt, Otto, Driver, Jon, Bestmann, Sven, Josephs, Oliver, Weiskopf, Nikolaus, Deichmann, Ralf, Ruff, Christian C.   +7 more
core   +3 more sources

Integrating visual and tactile information in the perirhinal cortex [PDF]

, 2009
By virtue of its widespread afferent projections, perirhinal cortex is thought to bind polymodal information into abstract object-level representations.
P. Notley, J. T. Devlin, Price, C. J., Devlin, J.T., Hocking, J., C. J. Price, J. Hocking, Holdstock, J.S., Notley, P., Price, C.J., Devlin, J. T., Holdstock, J. S., J. S. Holdstock   +12 more
core   +2 more sources

Is the prefrontal cortex organized by supramodal or modality-specific sensory demands during adolescence?

Developmental Cognitive Neuroscience, 2021
Attention is inherently biased towards the visual modality during most multisensory scenarios in adults, but the developmental trajectory towards visual dominance has not been fully elucidated. More recent evidence in primates and adult humans suggests a
V. Sicard, D.D. Stephenson, A.B. Dodd, S. Pabbathi Reddy, C.R. Robertson-Benta, S.G. Ryman, F.M. Hanlon, N.A. Shaff, J.M. Ling, D.C. Hergert, K. Vakamudi, J. Hogeveen, A.R. Mayer   +12 more
doaj   +1 more source

Visual categorization and the parietal cortex [PDF]

Frontiers in Integrative Neuroscience, 2012
The primate brain is adept at rapidly grouping items and events into functional classes, or categories, in order to recognize the significance of stimuli and guide behavior. Higher cognitive functions have traditionally been considered the domain of frontal areas.
Fitzgerald, Jamie K., Swaminathan, Sruthi K., Freedman, David J.   +2 more
openaire   +3 more sources

Older Adults Exhibit Greater Visual Cortex Inhibition and Reduced Visual Cortex Plasticity Compared to Younger Adults

Frontiers in Neuroscience, 2019
Recent evidence indicates that inhibition within the visual cortex is greater in older than young adults. Increased inhibition has been associated with reduced visual cortex plasticity in animal models.
Dania Abuleil, Daphne L. McCulloch, Benjamin Thompson   +2 more
doaj   +1 more source

Characterization of primary visual cortex input to specific cell types in the superior colliculus

Frontiers in Neuroanatomy, 2023
The superior colliculus is a critical brain region involved in processing visual information. It receives visual input directly from the retina, as well as via a projection from primary visual cortex. Here we determine which cell types in the superficial
Shuang Jiang, Suraj Honnuraiah, Greg J. Stuart, Greg J. Stuart   +3 more
doaj   +1 more source

Visual Cortex: Suppression by Depression? [PDF]

Current Biology, 2002
The response of a neuron in the visual cortex to an oriented light bar is strongly reduced by concurrent presentation of a stimulus with a different orientation. New data suggest this 'cross-orientation suppression' is caused, not by intracortical inhibition, but by rapid depression of thalamocortical synapses.
Mrsic-Flogel, Thomas D., Hübener, Mark
openaire   +4 more sources

Knowing with Which Eye We See: Utrocular Discrimination and Eye-Specific Signals in Human Visual Cortex [PDF]

, 2010
Neurophysiological and behavioral reports converge to suggest that monocular neurons in the primary visual cortex are biased toward low spatial frequencies, while binocular neurons favor high spatial frequencies.
Schwarzkopf, D., Schindler Andreas, Andreas Schindler, Rees, G., Schwarzkopf, DS, Rees Geraint, Schwarzkopf Dietrich Samuel, Geraint Rees, Schindler, A, Schindler, A., Dietrich Samuel Schwarzkopf, Rees, G   +11 more
core   +2 more sources

Frontal cortex selects representations of the talker’s mouth to aid in speech perception

eLife, 2018
Human faces contain multiple sources of information. During speech perception, visual information from the talker’s mouth is integrated with auditory information from the talker's voice.
Muge Ozker, Daniel Yoshor, Michael S Beauchamp   +2 more
doaj   +1 more source