Wernicke`s Aphasia
... frontoparietal vertex demonstrate a focal enhancing mass along the right post central gyrus with associated vasogenic edema (blue arrow). The mass was dural based, resected and consistent with a meningioma. Department of Radiology University of Wisconsin School of Medicine and Public Health ...
... frontoparietal vertex demonstrate a focal enhancing mass along the right post central gyrus with associated vasogenic edema (blue arrow). The mass was dural based, resected and consistent with a meningioma. Department of Radiology University of Wisconsin School of Medicine and Public Health ...
primary visual cortex and visual awareness
... there have been several reports of attentional modulation in V1 (REFS 135,136), consistent with the proposal that V1 activity reflects the perceptual saliency of visual items75,76. Monkeys performing a mental line-tracing task show enhanced responses in V1 if the neuron’s receptive field lies on the ...
... there have been several reports of attentional modulation in V1 (REFS 135,136), consistent with the proposal that V1 activity reflects the perceptual saliency of visual items75,76. Monkeys performing a mental line-tracing task show enhanced responses in V1 if the neuron’s receptive field lies on the ...
How the hippocampus preserves order: the role of
... in the hippocampus that may be used to predict upcoming locations [70]. Furthermore, representations of recent and upcoming locations in place cell assemblies are coded within the theta cycle as compressed, ordered sequences [65,66]. Importantly, the content of these theta sequences depends on envir ...
... in the hippocampus that may be used to predict upcoming locations [70]. Furthermore, representations of recent and upcoming locations in place cell assemblies are coded within the theta cycle as compressed, ordered sequences [65,66]. Importantly, the content of these theta sequences depends on envir ...
Rapid Alterations in Diffusion-weighted Images with Anatomic
... RESULTS: The piriform cortex, amygdala, and retrosplenial (and somatosensory) cortex displayed significant apparent diffusion coefficient (ADC) decreases 12 hours after seizure initiation. In contrast, an ADC rise of 19% was observed in the hippocampus 24 hours after seizure induction. Histologic da ...
... RESULTS: The piriform cortex, amygdala, and retrosplenial (and somatosensory) cortex displayed significant apparent diffusion coefficient (ADC) decreases 12 hours after seizure initiation. In contrast, an ADC rise of 19% was observed in the hippocampus 24 hours after seizure induction. Histologic da ...
The medial parietal occipital areas in the macaque
... reaching neurons. Our analyses suggest that areas V6 and V6Av, together, occupy the cortical territory previously described as area PO. Functionally, area V6 is a motion area particularly sensitive to the real motion of objects in the animal's field of view, while V6Av and V6Ad are visuomotor areas ...
... reaching neurons. Our analyses suggest that areas V6 and V6Av, together, occupy the cortical territory previously described as area PO. Functionally, area V6 is a motion area particularly sensitive to the real motion of objects in the animal's field of view, while V6Av and V6Ad are visuomotor areas ...
Lateral Connectivity and Contextual Interactions in Macaque
... contour integration in primary visual cortex (V1): intrinsic horizontal connections and feedback from higher cortical areas. To distinguish between these, we combined functional mapping with a new technique for labeling axons, a recombinant adenovirus bearing the gene for green fluorescent protein ( ...
... contour integration in primary visual cortex (V1): intrinsic horizontal connections and feedback from higher cortical areas. To distinguish between these, we combined functional mapping with a new technique for labeling axons, a recombinant adenovirus bearing the gene for green fluorescent protein ( ...
development and plasticity of cortical areas and networks
... humans contains over 10 billion neurons, is the seat of our highest sensory, motor and cognitive abilities. Understanding how it develops and how it changes is central to our understanding of brain function and is crucial to the development of treatments for neurological disease. Cortical developmen ...
... humans contains over 10 billion neurons, is the seat of our highest sensory, motor and cognitive abilities. Understanding how it develops and how it changes is central to our understanding of brain function and is crucial to the development of treatments for neurological disease. Cortical developmen ...
development and plasticity of cortical areas and networks
... humans contains over 10 billion neurons, is the seat of our highest sensory, motor and cognitive abilities. Understanding how it develops and how it changes is central to our understanding of brain function and is crucial to the development of treatments for neurological disease. Cortical developmen ...
... humans contains over 10 billion neurons, is the seat of our highest sensory, motor and cognitive abilities. Understanding how it develops and how it changes is central to our understanding of brain function and is crucial to the development of treatments for neurological disease. Cortical developmen ...
the evolution of body and brain, and of sensory
... 6.1.2. Simian Somatic Advances. Old World monkeys are generally much larger than prosimians. Whereas the largest prosimians, like the ring-tailed lemur or the aye-aye, weigh no more than about 3 kg, the male long-tailed macaque may weigh up to 12 kg, the Hanuman langur 20 kg, the chacma baboon 30 kg ...
... 6.1.2. Simian Somatic Advances. Old World monkeys are generally much larger than prosimians. Whereas the largest prosimians, like the ring-tailed lemur or the aye-aye, weigh no more than about 3 kg, the male long-tailed macaque may weigh up to 12 kg, the Hanuman langur 20 kg, the chacma baboon 30 kg ...
Motor areas of the frontal lobe by Jarrod Blinch
... likely to originate from giant pyramidal (Betz) cells (Geyer et al, 2000). Corticomotoneurons rarely connect to just one muscle but rather a small group of muscles, which may even involve movements at different joints. This grouping allows task-specific combinations of movements, for example, activa ...
... likely to originate from giant pyramidal (Betz) cells (Geyer et al, 2000). Corticomotoneurons rarely connect to just one muscle but rather a small group of muscles, which may even involve movements at different joints. This grouping allows task-specific combinations of movements, for example, activa ...
Verbal memory in mesial temporal lobe epilepsy
... memory tasks is protective, while arbitrariness increases susceptibility to the effects of retroactive interference (Bower et al., 1994; Burns and Gold, 1999; Blank, 2002; Musca et al., 2004; Sahakyan and Goodmon, 2007). Arbitrariness and semantic structure are not absolutes, and the two coexist to ...
... memory tasks is protective, while arbitrariness increases susceptibility to the effects of retroactive interference (Bower et al., 1994; Burns and Gold, 1999; Blank, 2002; Musca et al., 2004; Sahakyan and Goodmon, 2007). Arbitrariness and semantic structure are not absolutes, and the two coexist to ...
The effect of learning on the face selective responses of neurons in
... the mature monkey, a set of relatively fixed, unmodifiable filters, which do not alter their relative responses when new stimuli are learned by the monkey and stored further on in the visual system. There is evidence that the responses of neurons in the inferior temporal visual cortex are related to ...
... the mature monkey, a set of relatively fixed, unmodifiable filters, which do not alter their relative responses when new stimuli are learned by the monkey and stored further on in the visual system. There is evidence that the responses of neurons in the inferior temporal visual cortex are related to ...
Contextual modulation of primary visual cortex by auditory signals
... processing [1]. Although it is unclear if auditory feedback to primary visual cortex fits the profile of sensory integration seen in higher-association areas or the superior colliculus [11], anatomical and functional findings suggest that auditory signals in V1 do contribute to multisensory processi ...
... processing [1]. Although it is unclear if auditory feedback to primary visual cortex fits the profile of sensory integration seen in higher-association areas or the superior colliculus [11], anatomical and functional findings suggest that auditory signals in V1 do contribute to multisensory processi ...
The Central Visual System
... Hierarchy of complex receptive fields Retinal ganglion cells: Center-surround structure, Sensitive to contrast, and wavelength of light Striate cortex: Orientation selectivity, direction selectivity, and binocularity Extrastriate cortical areas: Selective responsive to complex shapes; e.g., Faces Sl ...
... Hierarchy of complex receptive fields Retinal ganglion cells: Center-surround structure, Sensitive to contrast, and wavelength of light Striate cortex: Orientation selectivity, direction selectivity, and binocularity Extrastriate cortical areas: Selective responsive to complex shapes; e.g., Faces Sl ...
Schwartz
... an IIS focus has been recently demonstrated by Schwartz and Bonhoeffer (2001). In this study, we generated an interictal focus in ferret visual cortex and mapped both the columnar organization of V1 and V2 as well as the epileptic focus in order to visualize directly how the two phenomena interact. ...
... an IIS focus has been recently demonstrated by Schwartz and Bonhoeffer (2001). In this study, we generated an interictal focus in ferret visual cortex and mapped both the columnar organization of V1 and V2 as well as the epileptic focus in order to visualize directly how the two phenomena interact. ...
PDF preprint - The Computational Neurobiology Laboratory
... where δ(·) is the Dirac delta function, eφ is a unit vector in the φ–direction, β is a parameter that measures the weight of lateral relative to local connections, and wLAT (s) is the weight of lateral connections between iso–orientation patches separated by a cortical distance s along a visuotopic ...
... where δ(·) is the Dirac delta function, eφ is a unit vector in the φ–direction, β is a parameter that measures the weight of lateral relative to local connections, and wLAT (s) is the weight of lateral connections between iso–orientation patches separated by a cortical distance s along a visuotopic ...
Guide to the CERAD Form
... cortex respectively. The pathology is graded as none = 0, sparse (one or two affected neurons per section) =1, moderate (several affected neurons per section) = 3 and severe (many affected neurons per section) = 5. snlhi and snlerc record the presence or absence of severe neuronal loss in the hippoc ...
... cortex respectively. The pathology is graded as none = 0, sparse (one or two affected neurons per section) =1, moderate (several affected neurons per section) = 3 and severe (many affected neurons per section) = 5. snlhi and snlerc record the presence or absence of severe neuronal loss in the hippoc ...
On the computational architecture of the neocortex
... the appropriate level of analysis, there are certain uniformities in the structure of the brain that suggest that some simple general principles of organization must be at work. If this is the case, looking at the tasks performed by the brain from a computational perspective, it may be possible to l ...
... the appropriate level of analysis, there are certain uniformities in the structure of the brain that suggest that some simple general principles of organization must be at work. If this is the case, looking at the tasks performed by the brain from a computational perspective, it may be possible to l ...
On the computational architecture of the neocortex
... the appropriate level of analysis, there are certain uniformities in the structure of the brain that suggest that some simple general principles of organization must be at work. If this is the case, looking at the tasks performed by the brain from a computational perspective, it may be possible to l ...
... the appropriate level of analysis, there are certain uniformities in the structure of the brain that suggest that some simple general principles of organization must be at work. If this is the case, looking at the tasks performed by the brain from a computational perspective, it may be possible to l ...
Congenital blindness affects diencephalic but not mesencephalic
... reliance on vision (Pavani et al. 2000; Ehrsson 2007). In addition, the importance of the visual modality is reflected not only by the number of subcortical structures involved but also by the large proportion of the neocortical surface dedicated to the processing of visual stimuli (Felleman and Van ...
... reliance on vision (Pavani et al. 2000; Ehrsson 2007). In addition, the importance of the visual modality is reflected not only by the number of subcortical structures involved but also by the large proportion of the neocortical surface dedicated to the processing of visual stimuli (Felleman and Van ...
recognition memory: what are the roles of the perirhinal cortex and
... of neurons using IMMEDIATE EARLY GENES (IEGs). The IEG ...
... of neurons using IMMEDIATE EARLY GENES (IEGs). The IEG ...
Inferior Parietal Lobule Function in Spatial Perception and
... temporal retinas. Other extrastriate fields do not appear to be retinotopically organized but are nevertheless visual in function. Relatively few of these areas are polysensory; most appear to possess a predominantly visual function. It is estimated that there are -20 visual cortical areas in the ma ...
... temporal retinas. Other extrastriate fields do not appear to be retinotopically organized but are nevertheless visual in function. Relatively few of these areas are polysensory; most appear to possess a predominantly visual function. It is estimated that there are -20 visual cortical areas in the ma ...
Categories in the Brain - Rice University -
... • Therefore language must have unique properties of its structural representation in the cortex • Answer: Yes, language is different, but – The differences are a consequence not of different (local) structure but differences of connectivity – The network does not have different kinds of structure fo ...
... • Therefore language must have unique properties of its structural representation in the cortex • Answer: Yes, language is different, but – The differences are a consequence not of different (local) structure but differences of connectivity – The network does not have different kinds of structure fo ...
DSP-4 (N-(2-Chloroethyl)-N-ethyl-2-bromobenzylamine)
... equal numbers of cells capable of being driven by either eye, to a skewed distribution in which most cells respond only or most strongly to the nondeprived eye (for reviews see Movshon and Van Sluyters, 1981; Sherman and Spear, 1982). Kasamatsu and Pettigrew (1976, 1979) have proposed that this muta ...
... equal numbers of cells capable of being driven by either eye, to a skewed distribution in which most cells respond only or most strongly to the nondeprived eye (for reviews see Movshon and Van Sluyters, 1981; Sherman and Spear, 1982). Kasamatsu and Pettigrew (1976, 1979) have proposed that this muta ...
Inferior temporal gyrus
The inferior temporal gyrus is placed below the middle temporal gyrus, and is connected behind with the inferior occipital gyrus; it also extends around the infero-lateral border on to the inferior surface of the temporal lobe, where it is limited by the inferior sulcus. This region is one of the higher levels of the ventral stream of visual processing, associated with the representation of complex object features, such as global shape. It may also be involved in face perception, and in the recognition of numbers.The inferior temporal gyrus is the anterior region of the temporal lobe located underneath the central temporal sulcus. The primary function of the inferior temporal gyrus - otherwise referenced as IT cortex - is associated with visual stimuli processing, namely visual object recognition, and has been suggested by recent experimental results as the final location of the ventral cortical visual system. The IT cortex in humans is also known as the Inferior Temporal Gyrus since it has been located to a specific region of the human temporal lobe. The IT processes visual stimuli of objects in our field of vision, and is involved with memory and memory recall to identify that object; it is involved with the processing and perception created by visual stimuli amplified in the V1, V2, V3, and V4 regions of the occipital lobe. This region processes the color and form of the object in the visual field and is responsible for producing the “what” from this visual stimuli, or in other words identifying the object based on the color and form of the object and comparing that processed information to stored memories of objects to identify that object.The IT cortex’s neurological significance is not just its contribution to the processing of visual stimuli in object recognition but also has been found to be a vital area with regards to simple processing of the visual field, difficulties with perceptual tasks and spatial awareness, and the location of unique single cells that possibly explain the IT cortex’s relation to memory.