Visual pathways pathology
... Loss of processing: V2 OR V3 INFARCT:(posteriormost, next to the calcarine sulcus (V1)= LOSS OF ORIENTATION + Mental Rotation = Loss of COLOUR in vision, monochrome = Loss of MOVEMENT detection, “photographic” vision where only still frames are perceived ...
... Loss of processing: V2 OR V3 INFARCT:(posteriormost, next to the calcarine sulcus (V1)= LOSS OF ORIENTATION + Mental Rotation = Loss of COLOUR in vision, monochrome = Loss of MOVEMENT detection, “photographic” vision where only still frames are perceived ...
Top-Down Versus Bottom-Up Control of Attention in the Prefrontal
... Timothy J. Buschman and Earl K. Miller* Attention can be focused volitionally by “top-down” signals derived from task demands and automatically by “bottom-up” signals from salient stimuli. The frontal and parietal cortices are involved, but their neural activity has not been directly compared. There ...
... Timothy J. Buschman and Earl K. Miller* Attention can be focused volitionally by “top-down” signals derived from task demands and automatically by “bottom-up” signals from salient stimuli. The frontal and parietal cortices are involved, but their neural activity has not been directly compared. There ...
The outer layer of the cerebral cortex is divided into different areas
... other by integrating the sensory stimuli they receive from the outside world. Now, on page 1206 of this issue (1), Macaluso et al. report an elegant example of this cooperation and provide empirical justification for the aphorism that there is more to seeing than meets the eye. They show that the ad ...
... other by integrating the sensory stimuli they receive from the outside world. Now, on page 1206 of this issue (1), Macaluso et al. report an elegant example of this cooperation and provide empirical justification for the aphorism that there is more to seeing than meets the eye. They show that the ad ...
Visual Perception
... detectors organized in hierarchical order, with feature detectors at the bottom level. The specific combinations of low-level detectors activate mid-level detectors that, in turn, trigger the activation of higher level detectors. ...
... detectors organized in hierarchical order, with feature detectors at the bottom level. The specific combinations of low-level detectors activate mid-level detectors that, in turn, trigger the activation of higher level detectors. ...
Visual development.
... input from the same area of the retina of both eyes. One column from the left and the next column from the right eye This is repeated across the whole visual cortex to build up a ‘map’ of the retina. Is this ordering of the cells in the visual cortex due to genetic encoding? The environment? Both? ...
... input from the same area of the retina of both eyes. One column from the left and the next column from the right eye This is repeated across the whole visual cortex to build up a ‘map’ of the retina. Is this ordering of the cells in the visual cortex due to genetic encoding? The environment? Both? ...
Visual development.
... input from the same area of the retina of both eyes. One column from the left and the next column from the right eye This is repeated across the whole visual cortex to build up a ‘map’ of the retina. Is this ordering of the cells in the visual cortex due to genetic encoding? The environment? Both? ...
... input from the same area of the retina of both eyes. One column from the left and the next column from the right eye This is repeated across the whole visual cortex to build up a ‘map’ of the retina. Is this ordering of the cells in the visual cortex due to genetic encoding? The environment? Both? ...
Chapter 1
... – Part of the fusiform gyrus on the underside of the temporal lobe is critical for face recognition – Hence, the name! Facial recognition is innate! ...
... – Part of the fusiform gyrus on the underside of the temporal lobe is critical for face recognition – Hence, the name! Facial recognition is innate! ...
Newsletter 5 - Eye vs. Camera - California Training Institute
... of the eye ensures that a similar HD version of acuity is only available within the 1‐2 degree angle of the fovea, with vision sharply decreasing towards the periphery 2. Visual perception must occur before reaction can take place, and the analysis of what an officer perceives or does not percei ...
... of the eye ensures that a similar HD version of acuity is only available within the 1‐2 degree angle of the fovea, with vision sharply decreasing towards the periphery 2. Visual perception must occur before reaction can take place, and the analysis of what an officer perceives or does not percei ...
Background Presentation
... – Superior Colliculus – Frontal Eye Field – Extrastriate Areas (V1, V4, IT) ...
... – Superior Colliculus – Frontal Eye Field – Extrastriate Areas (V1, V4, IT) ...
Primary visual cortex
... It also contains a prominent stripe of white matter in its layer 4 - the stripe of Gennari consisting of the myelinated axons of the lateral geniculate nucleus neurons. For this reason, the primary visual cortex is also referred to as the striate cortex. ...
... It also contains a prominent stripe of white matter in its layer 4 - the stripe of Gennari consisting of the myelinated axons of the lateral geniculate nucleus neurons. For this reason, the primary visual cortex is also referred to as the striate cortex. ...
Click here to a word document of this Fact
... Homonymous hemianopia is referred to as a neurological vision impairment. While we may be familiar with ocular based vision impairments such as cataracts, retinal deterioration or glaucoma, neurological based vision issues occur frequently and can be significantly debilitating. Neurological vision i ...
... Homonymous hemianopia is referred to as a neurological vision impairment. While we may be familiar with ocular based vision impairments such as cataracts, retinal deterioration or glaucoma, neurological based vision issues occur frequently and can be significantly debilitating. Neurological vision i ...
Nolte Chapter 22: Cerebral Cortex
... Broca’s area is in the opercular and triangular parts of the IFG. Wernicke’s is in the posterior part of the superior temporal gyrus. Together Broca’s and Wernicke’s are the perisylvian language zone. Inability to use language is known as aphasia. Broca’s aphasics can produce few words and tend to l ...
... Broca’s area is in the opercular and triangular parts of the IFG. Wernicke’s is in the posterior part of the superior temporal gyrus. Together Broca’s and Wernicke’s are the perisylvian language zone. Inability to use language is known as aphasia. Broca’s aphasics can produce few words and tend to l ...
IDEA-Definition of Serious Emotional Disturbance (SED)
... • Cognition and language – Impaired or absent vision makes it difficult to see the connections between experiences ...
... • Cognition and language – Impaired or absent vision makes it difficult to see the connections between experiences ...
The NTVA framework: Linking Cognition and Neuroscience
... In extensive reviews of the psychological attention literature, the TVA model has been shown to account for results from many different experimental paradigms such as singlestimulus recognition, visual search, whole report, partial report, and cued detection (Bundesen, 1990; Bundesen & Habekost, 200 ...
... In extensive reviews of the psychological attention literature, the TVA model has been shown to account for results from many different experimental paradigms such as singlestimulus recognition, visual search, whole report, partial report, and cued detection (Bundesen, 1990; Bundesen & Habekost, 200 ...
Solution 1
... There are two possible reasons. One is that as percepts become encoded with more semantic meaning, attentional modulation becomes more behaviorally relevant, and therefore increases at higher processing areas. Another possibility is that there exists an accumulative effect of ...
... There are two possible reasons. One is that as percepts become encoded with more semantic meaning, attentional modulation becomes more behaviorally relevant, and therefore increases at higher processing areas. Another possibility is that there exists an accumulative effect of ...
Visual Awareness - People.csail.mit.edu
... our present knowledge of the visual system. The first is how much we already know—by any standards the amount is enormous… The other surprising thing is that, in spite of all this work, we really have no clear idea how we see anything.” ...
... our present knowledge of the visual system. The first is how much we already know—by any standards the amount is enormous… The other surprising thing is that, in spite of all this work, we really have no clear idea how we see anything.” ...
primary visual cortex
... By the end of today’s class, you should be able to: 1. distinguish between cones and rods. 2. explain how an action potential is generated in the retinal cells of the visual system. 3. review the pathway by which visual information is transmitted from receptors to the brain. 4. identify the locatio ...
... By the end of today’s class, you should be able to: 1. distinguish between cones and rods. 2. explain how an action potential is generated in the retinal cells of the visual system. 3. review the pathway by which visual information is transmitted from receptors to the brain. 4. identify the locatio ...
After leaving the retina, the outputs of each eye are split
... • There are approximately 30 visual areas after V1 – The functional specialization hypothesis drives much of the research about these areas – Some areas seem specialized for processing a certain aspect of visual information (e.g., MT motion, V4 - color (?)) ...
... • There are approximately 30 visual areas after V1 – The functional specialization hypothesis drives much of the research about these areas – Some areas seem specialized for processing a certain aspect of visual information (e.g., MT motion, V4 - color (?)) ...
Check out figures to understand this tricky wiring pattern… After
... Secondary Visual Areas • Cortical areas dedicated to vision are densely interconnected, and can seem quite confusing at first glance ...
... Secondary Visual Areas • Cortical areas dedicated to vision are densely interconnected, and can seem quite confusing at first glance ...
Association Cortex, Consciousness, and other topics that Embarrass
... function by PET and fMRI criteria. • Some schizophrenics and their first orderrelatives do poorly on tasks designed to examine frontal function. • Patients with left frontal strokes have a higher frequency of depression than patients with posterior strokes. ...
... function by PET and fMRI criteria. • Some schizophrenics and their first orderrelatives do poorly on tasks designed to examine frontal function. • Patients with left frontal strokes have a higher frequency of depression than patients with posterior strokes. ...
