the clinical role of evoked potentials
... (SSEPs), and brainstem auditory evoked potentials (BSAEPs) are tested most frequently. Longer latency responses that are related to higher ‘‘cognitive’’ functions such as event related potentials (ERPs), contingent negative variant (CNV), and sensory potentials after stimulation with CO2 lasers are ...
... (SSEPs), and brainstem auditory evoked potentials (BSAEPs) are tested most frequently. Longer latency responses that are related to higher ‘‘cognitive’’ functions such as event related potentials (ERPs), contingent negative variant (CNV), and sensory potentials after stimulation with CO2 lasers are ...
Parietal cortex neurons of the monkey related to the visual guidance
... recordings, we assumed that the difference in cell activity between the two conditions was likely to be due to some visual input received by these cells. Therefore, we called this type of cells "visual and motor" neurons. More than half of this group of cells tested (18/34) was activated by the fixa ...
... recordings, we assumed that the difference in cell activity between the two conditions was likely to be due to some visual input received by these cells. Therefore, we called this type of cells "visual and motor" neurons. More than half of this group of cells tested (18/34) was activated by the fixa ...
David Hunter Hubel. 27 February 1926 — 22 September 2013
... when Mike suggested placing wires in the cortex of cats and recording from them while they were awake. The attempt was a failure, but the idea captured David’s imagination. He began developing techniques for recording from animals while they were awake. He first developed a tough tungsten microelect ...
... when Mike suggested placing wires in the cortex of cats and recording from them while they were awake. The attempt was a failure, but the idea captured David’s imagination. He began developing techniques for recording from animals while they were awake. He first developed a tough tungsten microelect ...
Beyond the classical receptive field: The effect of contextual stimuli
... encoding increasingly complex features. Whereas lowerlevel RFs mediate perceptual filling-in, contour integration, and figure–ground segregation, RFs at higher levels serve the perception of grouping by common fate, biological motion, and other biologically relevant stimuli, such as faces. Studies i ...
... encoding increasingly complex features. Whereas lowerlevel RFs mediate perceptual filling-in, contour integration, and figure–ground segregation, RFs at higher levels serve the perception of grouping by common fate, biological motion, and other biologically relevant stimuli, such as faces. Studies i ...
Convergent grey and white matter evidence of
... behavioural variant FTD, notably the Stroop, Go/No-go and Stop Signal tasks. Although impaired on the Stroop test, patients with behavioural variant FTD perform at an equivalent level to patients with Alzheimer’s disease (Pachana et al., 1996; Perry and Hodges, 2000; Collette et al., 2007) emphasizi ...
... behavioural variant FTD, notably the Stroop, Go/No-go and Stop Signal tasks. Although impaired on the Stroop test, patients with behavioural variant FTD perform at an equivalent level to patients with Alzheimer’s disease (Pachana et al., 1996; Perry and Hodges, 2000; Collette et al., 2007) emphasizi ...
REVIEW Time Course of Auditory Processing, Visual Processing
... In hearing, language and speech processing functions, brain works together with all fields (auditory processing, memory, language and the image and speech recording area, etc.) synchronizely for seconds as the orchestra. If neurons can not participate this processing synchronizely, synchronization i ...
... In hearing, language and speech processing functions, brain works together with all fields (auditory processing, memory, language and the image and speech recording area, etc.) synchronizely for seconds as the orchestra. If neurons can not participate this processing synchronizely, synchronization i ...
Visual Properties of Neurons in a Polysensory Area in Superior
... Most STP units, 70% of the 199 tested, had little or no preference for stimulus size, shape, orientation, or contrast. These nonselective units would respond similarly to spots and slits of light, to shadows, to slides and photographs of complex objects, and to three-dimensional objects. Many of the ...
... Most STP units, 70% of the 199 tested, had little or no preference for stimulus size, shape, orientation, or contrast. These nonselective units would respond similarly to spots and slits of light, to shadows, to slides and photographs of complex objects, and to three-dimensional objects. Many of the ...
The role of attention in binding visual features in working memory
... researchers found that this attentionally demanding task yielded no greater deficit in memory for conjunctions of features than for individual features, providing support for the argument that binding does not rely upon central executive resources. In the present experiment performance of younger an ...
... researchers found that this attentionally demanding task yielded no greater deficit in memory for conjunctions of features than for individual features, providing support for the argument that binding does not rely upon central executive resources. In the present experiment performance of younger an ...
Meaningful auditory information enhances perception of visual
... The previous experiment showed that auditory information, not informative on its own, can facilitate visual discrimination of tap dancing. This second experiment was designed to investigate summation between auditory and visual signals when both are informative, and at threshold. In order to do this ...
... The previous experiment showed that auditory information, not informative on its own, can facilitate visual discrimination of tap dancing. This second experiment was designed to investigate summation between auditory and visual signals when both are informative, and at threshold. In order to do this ...
Document
... Extrageniculate visual system Degeneration Tracer Insular visual area Tectum Electron microscopy ...
... Extrageniculate visual system Degeneration Tracer Insular visual area Tectum Electron microscopy ...
The Cerebrum
... • Somatic Sensory Association Area » Receives and interprets information from skin, musculoskeletal system, vicera (organs), and taste buds » Works with primary sensory cortex ...
... • Somatic Sensory Association Area » Receives and interprets information from skin, musculoskeletal system, vicera (organs), and taste buds » Works with primary sensory cortex ...
primary visual cortex and visual awareness
... perform comparable visual discrimination tasks through reinforcement learning, but it is difficult to evaluate whether the task is being performed consciously or automatically. However, scientists have become more willing to assume that some animals, such as monkeys, can be trained to report their p ...
... perform comparable visual discrimination tasks through reinforcement learning, but it is difficult to evaluate whether the task is being performed consciously or automatically. However, scientists have become more willing to assume that some animals, such as monkeys, can be trained to report their p ...
T2 - Center for Neural Basis of Cognition
... Remapping occurs at early stages of the visual hierarchy. Corollary discharge has an impact far back into the system. Remapping implies widespread connectivity in which many neurons have rapid access to information well beyond the classical receptive field. Vision is an active process of building re ...
... Remapping occurs at early stages of the visual hierarchy. Corollary discharge has an impact far back into the system. Remapping implies widespread connectivity in which many neurons have rapid access to information well beyond the classical receptive field. Vision is an active process of building re ...
DECISION MAKING AND THE BRAIN: NEUROLOGISTS` VIEW
... frontal cortex where the programmes and decisions finally transform into acts; these connections are called cortico-subcortico-frontal pathways. These connections are anatomical substrate for understanding the relationship between behaviour such as decision making and the brain. There are five pathw ...
... frontal cortex where the programmes and decisions finally transform into acts; these connections are called cortico-subcortico-frontal pathways. These connections are anatomical substrate for understanding the relationship between behaviour such as decision making and the brain. There are five pathw ...
Simulating the Fröhlich Effect of Motion Misperception as a Result... Attentional Modulation in the Visual System
... al. (1991) supports the assumption that the visual system might be more sensitive to foveofugal than to foveopetal motion. For the moving square this would lead to an earlier start of the attention shift for foveopetal motion. In the model, the different motion directions were simulated by shifting ...
... al. (1991) supports the assumption that the visual system might be more sensitive to foveofugal than to foveopetal motion. For the moving square this would lead to an earlier start of the attention shift for foveopetal motion. In the model, the different motion directions were simulated by shifting ...
Cortical Functions Reference
... It is well established that astereognosis (or tactile agnosia: loss of the ability to recognize objects by handling them) is found in cases of damage in the association sensorimotor cortex. Notes The superior parietal lobe includes area 5 and area 7, and is separated from the inferior parietal lobe ...
... It is well established that astereognosis (or tactile agnosia: loss of the ability to recognize objects by handling them) is found in cases of damage in the association sensorimotor cortex. Notes The superior parietal lobe includes area 5 and area 7, and is separated from the inferior parietal lobe ...
Spousal Support as Experienced by People With Multiple Sclerosis
... may lack resources to deal with stressful events and therefore may be psychologically vulnerable to any negative support that they receive from their partner. This notion of support was found in a study by Druley and Townsend (1998). Negative support that was received from the partner was related to ...
... may lack resources to deal with stressful events and therefore may be psychologically vulnerable to any negative support that they receive from their partner. This notion of support was found in a study by Druley and Townsend (1998). Negative support that was received from the partner was related to ...
Efficient Coding Hypothesis and an Introduction to
... be distinguished from other stimuli and it is suggested that their detection may be the important function of sensory relays. For instance, a frog’s visual system has a limited range of visual responses. However, a moving object elicits a sequence of reactions, such as the frog going into alert, or ...
... be distinguished from other stimuli and it is suggested that their detection may be the important function of sensory relays. For instance, a frog’s visual system has a limited range of visual responses. However, a moving object elicits a sequence of reactions, such as the frog going into alert, or ...
Frontal lobe dysfunction in amyotrophic lateral sclerosis
... The PET activation paradigm was based on that developed by Frith et al. (1991a) and contrasted rCBF during two conditions: word generation and word repetition. In the present study, modifications to the procedure were required to accommodate an older patient group with possible speech impairment. Th ...
... The PET activation paradigm was based on that developed by Frith et al. (1991a) and contrasted rCBF during two conditions: word generation and word repetition. In the present study, modifications to the procedure were required to accommodate an older patient group with possible speech impairment. Th ...
The Nucleus Basalis of Meynert
... choline acetyltransferase (CAT). It is degraded by acetycholinesterase (AChE), an enzyme present in the synaptic cleft. Hebb et al ' 6 showed that undercutting the cerebral cortex caused a reduction in CAT activity in overlying cortex. This indicated that cortical cholinergic input originated from n ...
... choline acetyltransferase (CAT). It is degraded by acetycholinesterase (AChE), an enzyme present in the synaptic cleft. Hebb et al ' 6 showed that undercutting the cerebral cortex caused a reduction in CAT activity in overlying cortex. This indicated that cortical cholinergic input originated from n ...
Monitoring and switching of cortico-basal ganglia loop
... 1992). Neurons in the primate CL and Pc thalamic nuclei receive large amounts of contralateral visual receptive field information and were found to be insensitive to stimulus size, shape, and brightness but responsive to changes in the visual scene (Schlag and Schlag-Rey, 1984). Recently, Matsumoto ...
... 1992). Neurons in the primate CL and Pc thalamic nuclei receive large amounts of contralateral visual receptive field information and were found to be insensitive to stimulus size, shape, and brightness but responsive to changes in the visual scene (Schlag and Schlag-Rey, 1984). Recently, Matsumoto ...
Charcot-Marie-Tooth Disease - Muscular Dystrophy Association of
... conduction velocities are usually in the normal range but occasionally fall below normal. CMT2 is caused by abnormal genes involved in the structure and function of axons. CMT2 has been further subdivided into CMT2A, CMT2B, CMT2C, CMT2D and CMT2E based on specific gene abnormalities. The clinical pr ...
... conduction velocities are usually in the normal range but occasionally fall below normal. CMT2 is caused by abnormal genes involved in the structure and function of axons. CMT2 has been further subdivided into CMT2A, CMT2B, CMT2C, CMT2D and CMT2E based on specific gene abnormalities. The clinical pr ...
Visually guided behavior in drosophila
... that although the match was not perfect, as it was significantly higher than 0 degrees, it also was not arbitrary. The non-perfect match might have emerged from spinning during the photo-shoot. This can be solved in a further experiment by using a rotating tripod, and ideally a monopod with only one ...
... that although the match was not perfect, as it was significantly higher than 0 degrees, it also was not arbitrary. The non-perfect match might have emerged from spinning during the photo-shoot. This can be solved in a further experiment by using a rotating tripod, and ideally a monopod with only one ...
primary cortex - u.arizona.edu
... • Transduction of olfactory stimuli occurs in olfactory receptors located in the olfactory mucosa of the upper nasal cavity • Projections to various parts of the limbic system (which is responsible for the emotional perception of odorants) and to the medial dorsal nucleus of the thalamus • The DMN e ...
... • Transduction of olfactory stimuli occurs in olfactory receptors located in the olfactory mucosa of the upper nasal cavity • Projections to various parts of the limbic system (which is responsible for the emotional perception of odorants) and to the medial dorsal nucleus of the thalamus • The DMN e ...
T2 - Center for Neural Basis of Cognition
... Extrastriate Summary Remapping occurs at early stages of the visual hierarchy. Corollary discharge has an impact far back into the system. Remapping implies widespread connectivity in which many neurons have rapid access to information well beyond the classical receptive field. Vision is an active ...
... Extrastriate Summary Remapping occurs at early stages of the visual hierarchy. Corollary discharge has an impact far back into the system. Remapping implies widespread connectivity in which many neurons have rapid access to information well beyond the classical receptive field. Vision is an active ...