Results 51 to 60 of about 2,971,387 (406)

Microglial P2Y12 is necessary for synaptic plasticity in mouse visual cortex

open access: yesNature Communications, 2016
Microglia are the resident immune cells of the brain. Increasingly, they are recognized as important mediators of normal neurophysiology, particularly during early development.
Grayson O Sipe   +5 more
semanticscholar   +1 more source

Synaptic organization of visual space in primary visual cortex

open access: yesNature, 2017
How a sensory stimulus is processed and perceived depends on the surrounding sensory scene. In the visual cortex, contextual signals can be conveyed by an extensive network of intra- and inter-areal excitatory connections that link neurons representing ...
M. Iacaruso, Ioana Gasler, S. Hofer
semanticscholar   +1 more source

Linking pain and the body: neural correlates of visually induced analgesia [PDF]

open access: yes, 2012
The visual context of seeing the body can reduce the experience of acute pain, producing a multisensory analgesia. Here we investigated the neural correlates of this “visually induced analgesia” using fMRI.
,   +5 more
core   +2 more sources

Domain Specificity in Visual Cortex [PDF]

open access: yesCerebral Cortex, 2005
We investigated the prevalence and specificity of category-selective regions in human visual cortex. In the broadest survey to date of category selectivity in visual cortex, 12 participants were scanned with functional magnetic resonance imaging while viewing scenes and 19 different object categories in a blocked-design experiment.
P. E. Downing   +4 more
openaire   +3 more sources

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

open access: yes, 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.
Bestmann, Sven   +7 more
core  

Desflurane Selectively Suppresses Long-latency Cortical Neuronal Response to Flash in the Rat [PDF]

open access: yes, 2009
Background—The effect of inhalational anesthetics on sensory-evoked unit activity in the cerebral cortex has been controversial. Desflurane has desirable properties for in vivo neurophysiologic studies but its effect on cortical neuronal activity and ...
Hudetz, Anthony G.   +2 more
core   +2 more sources

Hebbian synapses in visual cortex [PDF]

open access: yesThe Journal of Neuroscience, 1994
We discovered in slices of rat visual cortex that reliable long-term potentiation (LTP) of synaptic responses in layer III could be elicited by theta burst stimulation delivered to a site in the middle of the cortical thickness, corresponding mainly to layer IV.
A, Kirkwood, M F, Bear
openaire   +2 more sources

Layer-specificity in the effects of attention and working memory on activity in primary visual cortex

open access: yesNature Communications, 2017
Neuronal activity in early visual cortex depends on attention shifts but the contribution to working memory has remained unclear. Here, we examine neuronal activity in the different layers of the primary visual cortex (V1) in an attention-demanding and a
Timo van Kerkoerle   +2 more
semanticscholar   +1 more source

A Cre‐dependent lentiviral vector for neuron subtype‐specific expression of large proteins

open access: yesFEBS Letters, EarlyView.
We designed a versatile and modular lentivector comprising a Cre‐dependent switch and self‐cleaving 2A peptide and tested it for co‐expression of GFP and a 2.8 kb gene of interest (GOI) in mouse cortical parvalbumin (PV+) interneurons and midbrain dopamine (TH+) neurons.
Weixuan Xue   +6 more
wiley   +1 more source

Motion Opponency in Visual Cortex [PDF]

open access: yesThe Journal of Neuroscience, 1999
Perceptual studies suggest that visual motion perception is mediated by opponent mechanisms that correspond to mutually suppressive populations of neurons sensitive to motions in opposite directions. We tested for a neuronal correlate of motion opponency using functional magnetic resonance imaging (fMRI) to measure brain activity in human visual cortex.
D J, Heeger   +4 more
openaire   +2 more sources

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