Results 121 to 130 of about 572,678 (236)

Very early responses to colour stimuli detected in prestriate visual cortex by magnetoencephalography (MEG) [PDF]

open access: yes, 2018
Our previous studies with the visual motion and form systems show that visual stimuli belonging to these categories trigger much earlier latency responses from the visual cortex than previously supposed and that the source of the earliest signals can be ...
Hoshi, H, Shigihara, Y, Zeki, S
core   +1 more source

The Visual Mismatch Negativity Elicited with Visual Speech Stimuli

open access: yesFrontiers in Human Neuroscience, 2013
The visual mismatch negativity (vMMN), deriving from the brain’s response to stimulus deviance, is thought to be generated by the cortex that represents the stimulus. The vMMN response to visual speech stimuli was used in a study of the lateralization of
Benjamin T. Files   +3 more
doaj   +1 more source

Assessing differential effects of single and accelerated low‐frequency rTMS to the visual cortex on GABA and glutamate concentrations

open access: yesBrain and Behavior, 2020
Background The application of repetitive transcranial magnetic stimulation (rTMS) for therapeutic use in visual‐related disorders and its underlying mechanisms in the visual cortex is under‐investigated.
Sara A. Rafique, Jennifer K. E. Steeves
doaj   +1 more source

The Development of Dominance Stripes and Orientation Maps in a Self-Organising Visual Cortex Network (VICON) [PDF]

open access: yesarXiv, 2010
A self-organising neural network is presented that is based on a rigorous Bayesian analysis of the information contained in individual neural firing events. This leads to a visual cortex network (VICON) that has many of the properties emerge when a mammalian visual cortex is exposed to data arriving from two imaging sensors (i.e. the two retinae), such
arxiv  

Towards a Theory of the Laminar Architecture of Cerebral Cortex: Computational Clues from the Visual System [PDF]

open access: yes, 2001
One of the most exciting and open research frontiers in neuroscience is that of seeking to understand the functional roles of the layers of cerebral cortex.
Grossberg, Stephen, Raizada, Rajeev D.S.
core   +1 more source

Anatomical pathways for auditory memory II: information from rostral superior temporal gyrus to dorsolateral temporal pole and medial temporal cortex [PDF]

open access: yes, 2015
Auditory recognition memory in non-human primates differs from recognition memory in other sensory systems. Monkeys learn the rule for visual and tactile delayed matching-to-sample within a few sessions, and then show one-trial recognition memory lasting
Insausti, R.   +4 more
core   +1 more source

Linking Visual Cortex to Visual Perception: An Alternative to the Gestalt Bubble [PDF]

open access: yes, 2003
Lehar's lively discussion builds on a critique of neural models of vision that is incorrect in its general and specific claims. He espouses a Gestalt perceptual approach, rather than one consistent with the "objective neurophysiological state of the ...
Grossberg, Stephen
core   +2 more sources

Linking the Laminar Circuits of Visual Cortex to Visual Perception [PDF]

open access: yes, 2001
A detailed neural model is being developed of how the laminar circuits of visual cortical areas V1 and V2 implement context-sensitive binding processes such as perceptual grouping and attention, and develop and learn in a stable way.
Grossberg, Stephen
core   +1 more source

Word contexts enhance the neural representation of individual letters in early visual cortex

open access: yes, 2020
Visual context facilitates perception, but how this is neurally implemented remains unclear. One example of contextual facilitation is found in reading, where letters are more easily identified when embedded in a word.
De Lange, F.   +4 more
core   +1 more source

Physiological Mechanisms Underlying Motion-Induced Blindness [PDF]

open access: yes, 2008
Visual disappearance illusions - such as motion-induced blindness (MIB) - are commonly used to study the neural underpinnings of visual perception. In such illusions a salient visual target becomes perceptually invisible.
Camilo Libedinsky   +2 more
core   +1 more source

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