visual cortex In A Sentence
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- If your visual cortex is destroyed by a stroke, you won't be able to see.
- For example, our visual system maps visual space on to the surface of our visual cortex.
- A larger primary visual cortex, maybe to help them with hunting or to navigate the environment.
- Visual Evoked Potentials (VEPs) are produced by electrical activity of the visual cortex in response to light or pattern stimulation of the retina.
- Pyramidal cells in the visual cortex ( or striate cortex ) of the cuneus, project to extrastriate cortices ( BA 18, 19 ).
- Phase code has been shown in visual cortex to involve also high-frequency oscillations.
- The visual cortex is part of the brain.
- One of the primary initiatives to locating the colour centre in the visual cortex is to discover the cause and a possible treatment of cerebral achromatopsia.
- It's very important to imagine violet to deep black in your visual cortex.
- More recently, he has been studying how color is represented in the visual cortex, as a follow-up to his earlier work on parallel pathways for color and brightness contrast in the retina.
- Several such regions have been identified within the visual cortex.
- Since the work of Hubel and Wiesel, it is generally accepted that visual orientation and direction selectivity are achieved by processes in the visual cortex in the higher mammals.
- Lab scientists can reconstruct simple black-and-white images the subject is viewing by analyzing the blood flow in the brain's visual cortex.
- In blind people all this brain power would go to waste, but somehow an unsighted person's brain rewires itself to connect auditory regions of the brain to the visual cortex.
- V4 was initially identified in macaque monkey visual cortex experiments.
- Like it or not, the visual cortex center of our brain is constantly assessing our surroundings.
- The c - fos in pregeniculum , rostral cerebral ganglion and visual cortex takes part in the injury.
- This experiment provides a fast and relatively accurate method to calculate the retinotopic eccentricities in a large cortical area of the visual cortex.
- The distinctions between foveal ( sometimes also called central ) and peripheral vision are reflected in subtle physiological and anatomical differences in the visual cortex.
- Conclusion : There is synchronous development in the microvascular of the homologous region between infant lateral geniculate body and visual cortex.
- Color blindness can also result from damages to the visual cortex in the brain.
- The crossing over of optic nerve fibres at the optic chiasm allows the visual cortex to receive the same hemispheric visual field from both eyes.
- For instance, from birth the auditory cortex will receive only sound or the visual cortex will receive only visual input.
- Most axons from the LGN will then travel to the primary visual cortex.
- The final experiments measure attentional modulation of single neuron activity in the visual cortex of the monkey.
- A World War I soldier with a small-bore bullet wound in the back of his head might also, for instance, have a vacancy in his field of vision caused by a corresponding injury in his visual cortex.
- When applied to the newly discovered cytochrome oxidase blobs in the visual cortex of primates the correlational approach is quite revealing.
- The photic driving response elicited by a flash light in the visual cortex is also suppressed by nitrazepam.
- This suggests that the visual mechanisms involved in discrimination performance change after visual cortex ablation.
- The representation of the visual world in the primary visual cortex of the common marmoset revealed by optical imaging.
- But for the visual cortex, light flashes work pretty well.
- It can also influence learned and voluntary reactions to visual stimuli when the visual cortex is absent.
- Part of the problem is that they are often on tasks that are also severely impaired after destruction of primary visual cortex.
- It is extremely phospherescent due to the amount of phosphene that it transmits onto the visual cortex.
- Understanding how visual cortex works in object recognition is still a challenging task for neuroscience.
- Their theory suggests that noise produced in the visual cortex helps linearize or smooth the threshold of action potentials.
- The visual cortex adapts itself to the signals from the eye.
- Crick was definitely correct that the visual cortex is key to what consciousness is about.
- As such, it can be seen as the automated equivalent of the biological visual cortex.
- Other lesions to the visual cortex have different effects depending on the location of the damage.
- However, there are some issues that come with direct stimulation of the visual cortex.
- The retrosplenial cortex has dense reciprocal projections with the visual cortex, postsubiculum ( also known as dorsal presubiculum ) and with anterior thalamic nuclei and the hippocampus.
- Receptive fields of cells in the visual cortex are larger and have more-complex stimulus requirements than retinal ganglion cells or lateral geniculate nucleus cells.
- The somatosensory cortex is also able to recruit the visual cortex to assist with tactile sensation.
- Functional Architecture and Development of visual Cortex-Research group leader : David Fitzpatrick, PhD.
- In 1881, Hermann Munk more accurately located vision in the occipital lobe, where the primary visual cortex is now known to be.
- Concentric circles in the retina are mapped into parallel lines in visual cortex.
- Reported image vividness correlates significantly with the relative fMRI signal in the visual cortex.
- This pathway spreads from the primary visual cortex dorsally to the parietal lobe.
- Axons from layer 6 of visual cortex send information back to the LGN.
- In these conditions it seems appropriate to activate intact visual cortex of blind or partial sight patients to rehabilitate vision.
- Experimentation in recent years has demonstrated that synaesthesia is most likely the consequence of abnormal projections into the V4 colour region of the visual cortex from other parts of the brain.
- They are reproduced in the lateral geniculate body of the thalamus and reaching to the visual cortex ( occipital ), they activate it.
- "We've found that the prefrontal zone where cells remember location connects to the area of the visual cortex that specializes in representing spatial relations, " said Dr . Goldman-Rakic.
- Surely, everyone thought, something fancy happened in those six layers, all of which send axons to the visual cortex.
- In the CNS, diphenhydramine readily crosses the blood-brain barrier, exerting effects within the visual and auditory cortex.
- Exposing rat cortex to the same stain produces uniform, moderately dense, labelling in the primary visual area.
- Schwartz. ' Primate Motor cortex and Free Arm Movements to visual Targets in three-dimensional space. '.
- For vision and hearing ( visual and auditory cortex ), there is extensive early synaptogenesis.
- SLF II connects to the caudal inferior parietal cortex which controls spatial attention and visual and oculomotor functions.
- For some poorly understood reason, this most often involves the visual areas of the occipital cortex.
- The visual processing cells in the cortex respond very poorly to diffuse light but optimally to lines.
- The first states that after damage to area V1, other branches of the optic nerve deliver visual information to the superior colliculus and several other areas, including parts of the cerebral cortex.
- Evarts started his neurophysiological research by conducting ablation studies of visual and auditory cortex in monkeys.
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