The brain location, extent and functional organization of the cortical visual area V6A was investigated in macaque monkeys by using single cell recording techniques in awake, behaving animals. Six hemispheres of four animals were studied. Area V6A occupies a horseshoe-like region of cortex in the...
we exploited the fact that neurons in several areas of the visual cortex have well-defined, small receptive fields18,29. After mice had learned categorizing stimuli at a specific position in their visual field (26° azimuth), we proceeded with repeated sessions in which the stimulus position ...
Sensory cortices can be affected by stimuli of multiple modalities and are thus increasingly thought to be multisensory. For instance, primary visual cortex (V1) is influenced not only by images but also by sounds. Here we show that the activity evoked b
Electrodes can be placed on the surface of the visual cortex (subdural) or inserted into the brain tissue (intracortical). Two key pioneers in the development of cortical bionic vision prostheses were Giles Brindley and William Dobelle (Brindley and Lewin, 1968; Dobelle and Mladejovsky, 1974; ...
Evoked potentials could still be recorded from V1 in these animals, showing that the visual cortex was active. The finding is somewhat related to the report of a lesion to the extrastriate areas such that V1 seemed isolated from the rest of the brain (Bodis-Wollner, Atkin, Raab & ...
Implementation of "Precise Mapping of Single Neurons by Calibrated 3D Reconstruction of Brain Slices Reveals Topographic Projection in Mouse Visual Cortex" (Song et al., Cell Reports, 2020) - cogilab/AMaSiNe
in vivo EAP waveform analysis typically results in two clusters, fast-spiking (FS) vs. regular-spiking (RS) units.bPrimary visual cortex (V1) in the mouse brain (left) and typical cortical depth placement of a Neuropixels probe along V1 (right, from the Allen Reference Atlas-Mouse Brain...
in attentional processing and shaping large-scale task-related functional networks of the brain31,32,33. Alpha oscillations provide periodic alternations in the neural excitability, causing a rhythmic modulation of perception34,35,36,37,38,39. Similarly alpha amplitude in human cortex has been shown...
The Visual Cortex The visual cortex is the area of the brain responsible for processing visual information. Information from photoreceptor cells (rods and cones) in the retina is carried by ganglion cells to the optic nerve, which ...
The visual pathway in the brain 1.Lateral Geniculate Nucleus (LGN)2.Optic radiations3.Primary Visual Cortex4.Secondary Visual Cortex Extra-geniculate pathways Important for:•Light and accommodation reflexes•Directing visual attention and eye movements toward visual stimuli•Project to numerous brain...