the cortical projection of the medial geniculate body
... mingling with the optic radiation. In addition he says there are cortical components in this region which have come by way of the inferior or posterior brachium from the posterior quadrigeminal body. If these fibres exist in the cat and occupy the positions assigned to them by Winkler, they must hav ...
... mingling with the optic radiation. In addition he says there are cortical components in this region which have come by way of the inferior or posterior brachium from the posterior quadrigeminal body. If these fibres exist in the cat and occupy the positions assigned to them by Winkler, they must hav ...
Postnatal growth and column spacing in cat primary visual cortex
... continues to grow substantially during early postnatal development. To assess the implications of this growth for the organization of visual cortical maps, we analysed both postnatal growth of area 17 and the spacing of ocular dominance columns in the same animals using 2-deoxyglucose autoradiograph ...
... continues to grow substantially during early postnatal development. To assess the implications of this growth for the organization of visual cortical maps, we analysed both postnatal growth of area 17 and the spacing of ocular dominance columns in the same animals using 2-deoxyglucose autoradiograph ...
Basal Ganglia objectives - NBio401
... -Be able to explain how, in addition to the pathways affecting limb movements, there are other loops between the basal ganglia and cerebral cortex that perform analogous functions for oculomotor, executive, and emotional systems. - Be able to describe the type of learning in which the basal ganglia ...
... -Be able to explain how, in addition to the pathways affecting limb movements, there are other loops between the basal ganglia and cerebral cortex that perform analogous functions for oculomotor, executive, and emotional systems. - Be able to describe the type of learning in which the basal ganglia ...
Cortical afferents to the smooth-pursuit region of the macaque
... the arcuate sulcus (Fig. 2A, f). Only layers I and II of this fold of cortex were exposed to tracer. The injection ...
... the arcuate sulcus (Fig. 2A, f). Only layers I and II of this fold of cortex were exposed to tracer. The injection ...
12 - Humbleisd.net
... posterior border and secretes melatonin – Melatonin—helps regulate sleep-wake cycle ...
... posterior border and secretes melatonin – Melatonin—helps regulate sleep-wake cycle ...
The Cytoarchitectonic Map of Constantin von Economo and Georg N
... cerebral cortical layers, compared to Brodmann. By dissecting each gyrus and sulcus perpendicularly to its axis, von Economo and Koskinas successfully addressed the core problem of flattening out the convoluted polyhedral surface of the human cerebral mantle. They defined five structural cortical ty ...
... cerebral cortical layers, compared to Brodmann. By dissecting each gyrus and sulcus perpendicularly to its axis, von Economo and Koskinas successfully addressed the core problem of flattening out the convoluted polyhedral surface of the human cerebral mantle. They defined five structural cortical ty ...
Purves ch. 8 + Kandel ch. 23 - Weizmann Institute of Science
... skin depression. Meissner’s corpuscles are the most common mechanoreceptors of “glabrous” (smooth, hairless) skin (the fingertips, for instance), and their afferent fibers account for about 40% of the sensory innervation of the human hand. These corpuscles are particularly efficient in transducing i ...
... skin depression. Meissner’s corpuscles are the most common mechanoreceptors of “glabrous” (smooth, hairless) skin (the fingertips, for instance), and their afferent fibers account for about 40% of the sensory innervation of the human hand. These corpuscles are particularly efficient in transducing i ...
A Self-Organizing Neural Network for Contour Integration through Synchronized Firing
... low pixel correlation than other areas. As a result, sharp images project more often on the fovea than the periphery, allowing more specific connections to form. A similar method can be used to find out if there’s a difference in statistical distribution of image features in the lower vs. upper hemi ...
... low pixel correlation than other areas. As a result, sharp images project more often on the fovea than the periphery, allowing more specific connections to form. A similar method can be used to find out if there’s a difference in statistical distribution of image features in the lower vs. upper hemi ...
Is neocortex essentially multisensory?
... the cat has a direct influence not only the integrative properties of superior collicular neurons [36], but can also influence orienting behavior. Cats typically show multisensory enhancement of orienting to congruent visual– auditory spatial targets when stimuli are near threshold. When the anterio ...
... the cat has a direct influence not only the integrative properties of superior collicular neurons [36], but can also influence orienting behavior. Cats typically show multisensory enhancement of orienting to congruent visual– auditory spatial targets when stimuli are near threshold. When the anterio ...
Whisker sensory system – From receptor to decision
... the cellular mechanisms that underlie sensory responses. A second, more recent line of research has focused on tactile psychophysics, that is, quantification of the behavioral capacities supported by whisker sensation. The opportunity to join these two lines of investigation makes whisker-mediated se ...
... the cellular mechanisms that underlie sensory responses. A second, more recent line of research has focused on tactile psychophysics, that is, quantification of the behavioral capacities supported by whisker sensation. The opportunity to join these two lines of investigation makes whisker-mediated se ...
The Thalamus
... The thalamus received its name in the first century of the current era from Galen, an Ionian Greek who had studied at the great school of anatomy at Alexandria. Galen, a prolific writer of anatomical studies and one-time physician to the Roman Emperor, Marcus Aurelius, remained the most influential ...
... The thalamus received its name in the first century of the current era from Galen, an Ionian Greek who had studied at the great school of anatomy at Alexandria. Galen, a prolific writer of anatomical studies and one-time physician to the Roman Emperor, Marcus Aurelius, remained the most influential ...
Cortical evolution and development: Conserved
... disproportionately large as the brain enlarges, and the cortex is the most extreme example of this principle. The origin of each brain subdivision with respect to the anterior-toposterior, medial-to-lateral axes of the forebrain prosomeres and hindbrain rhombomeres appears to be the embryonic organi ...
... disproportionately large as the brain enlarges, and the cortex is the most extreme example of this principle. The origin of each brain subdivision with respect to the anterior-toposterior, medial-to-lateral axes of the forebrain prosomeres and hindbrain rhombomeres appears to be the embryonic organi ...
J Neurophysiol - University of Connecticut
... and temporal integration properties, suggesting that the excitatoryinhibitory interactions underlying preference in each domain are largely independent. A small number of neurons in each station had highly asymmetric STRFs, evidence of frequency sweep selectivity, but the population showed no direct ...
... and temporal integration properties, suggesting that the excitatoryinhibitory interactions underlying preference in each domain are largely independent. A small number of neurons in each station had highly asymmetric STRFs, evidence of frequency sweep selectivity, but the population showed no direct ...
Brain Storm - School of Rehabilitation Therapy
... arteries. The internal carotid arteries make a characteristic 900 turn transversely as they enter the skull. Upon entering the skull they traverse the cavernous sinus. The internal carotid then makes another characteristic turn known as the carotid siphon (s-shaped) before giving off two main termin ...
... arteries. The internal carotid arteries make a characteristic 900 turn transversely as they enter the skull. Upon entering the skull they traverse the cavernous sinus. The internal carotid then makes another characteristic turn known as the carotid siphon (s-shaped) before giving off two main termin ...
PDF file
... classification scheme does not fit well for higher accuracy needs, as a misclassification between disparity class −1 and class 0 is very different from that between a class −1 and class 4. The work presented here, investigates the more challenging problem of regression with subpixel precision, in co ...
... classification scheme does not fit well for higher accuracy needs, as a misclassification between disparity class −1 and class 0 is very different from that between a class −1 and class 4. The work presented here, investigates the more challenging problem of regression with subpixel precision, in co ...
Hippocampal region - NeuronDevelopment.org
... studies by Hjorth-Simonsen (1972) showed that the perforant path is lOpographically organized so that EntL terminates in the superficial third of the lacunosum moleculare layer of CA3 and in the superficial third of the dentate molecular layer throughout both ectal and endallimbs. The EntM terminate ...
... studies by Hjorth-Simonsen (1972) showed that the perforant path is lOpographically organized so that EntL terminates in the superficial third of the lacunosum moleculare layer of CA3 and in the superficial third of the dentate molecular layer throughout both ectal and endallimbs. The EntM terminate ...
Stimulus-Specific Adaptation in Auditory Cortex Is an NMDA
... (ERP) component elicited by a sound which deviates from a repeating pattern of recent sounds, and thought to be generated by a temporo-prefrontal network including auditory cortex. • This claim implies that auditory cortex units themselves play an integral role in novelty detection as indexed by the ...
... (ERP) component elicited by a sound which deviates from a repeating pattern of recent sounds, and thought to be generated by a temporo-prefrontal network including auditory cortex. • This claim implies that auditory cortex units themselves play an integral role in novelty detection as indexed by the ...
Prefrontal cortex in humans and apes: A comparative study of area 10
... brain than it is in the apes, and its supragranular layers have more space available for connections with other higher-order association areas. This suggests that the neural substrates supporting cognitive functions associated with this part of the cortex enlarged and became specialized during homin ...
... brain than it is in the apes, and its supragranular layers have more space available for connections with other higher-order association areas. This suggests that the neural substrates supporting cognitive functions associated with this part of the cortex enlarged and became specialized during homin ...
A Weighted and Directed Interareal Connectivity
... Because the patterns of connections between cortical areas are so complex, graph theoretic approaches offer a valuable way to explore their network properties (Watts and Strogatz 1998; Barabasi and Albert 1999; Watts 1999; Newman 2003; Boccaletti et al. 2006). Just as with many other real-world netw ...
... Because the patterns of connections between cortical areas are so complex, graph theoretic approaches offer a valuable way to explore their network properties (Watts and Strogatz 1998; Barabasi and Albert 1999; Watts 1999; Newman 2003; Boccaletti et al. 2006). Just as with many other real-world netw ...
Vertical Organization of r=Aminobutyric Acid
... all cells within a column share similar receptive field properties. Convergence of vertically organized inputs appears responsible, at least in part, for the additional functional properties that distinguish superficial and deep cortical cells from those lying at the heart of the thalamic terminal l ...
... all cells within a column share similar receptive field properties. Convergence of vertically organized inputs appears responsible, at least in part, for the additional functional properties that distinguish superficial and deep cortical cells from those lying at the heart of the thalamic terminal l ...
Anatomy of the Cerebellum
... anterior pontine nuclei (APN). The cerebellum in turn sends its output through the deep cerebellar nuclei (DCN), red nucleus (RN), and anterior thalamic nucleus (ATN) to various telencephalic areas including the motor cortex (MC), the prefrontal cortex (PFC), the parietal cortex (PC), and the tempor ...
... anterior pontine nuclei (APN). The cerebellum in turn sends its output through the deep cerebellar nuclei (DCN), red nucleus (RN), and anterior thalamic nucleus (ATN) to various telencephalic areas including the motor cortex (MC), the prefrontal cortex (PFC), the parietal cortex (PC), and the tempor ...
Primary Motor Cortex
... hemispheres • Third ventricle in the diencephalon • Fourth ventricle in the hindbrain, dorsal to the pons, develops from the lumen of the neural ...
... hemispheres • Third ventricle in the diencephalon • Fourth ventricle in the hindbrain, dorsal to the pons, develops from the lumen of the neural ...
Primary Motor Cortex
... hemispheres • Third ventricle in the diencephalon • Fourth ventricle in the hindbrain, dorsal to the pons, develops from the lumen of the neural ...
... hemispheres • Third ventricle in the diencephalon • Fourth ventricle in the hindbrain, dorsal to the pons, develops from the lumen of the neural ...
Kandel and Schwartz, 4th Edition Principles of Neural Science Chap
... one or another kind of stimulus and encode information about the stimulus, such as its location and intensity. The receptors in turn excite sensory neurons that form connections with discrete sets of neurons in the spinal cord. The information from each receptor is then analyzed in the brain stem, ...
... one or another kind of stimulus and encode information about the stimulus, such as its location and intensity. The receptors in turn excite sensory neurons that form connections with discrete sets of neurons in the spinal cord. The information from each receptor is then analyzed in the brain stem, ...
Cerebral cortex
The cerebral cortex is the cerebrum's (brain) outer layer of neural tissue in humans and other mammals. It is divided into two cortices, along the sagittal plane: the left and right cerebral hemispheres divided by the medial longitudinal fissure. The cerebral cortex plays a key role in memory, attention, perception, awareness, thought, language, and consciousness. The human cerebral cortex is 2 to 4 millimetres (0.079 to 0.157 in) thick.In large mammals, the cerebral cortex is folded, giving a much greater surface area in the confined volume of the skull. A fold or ridge in the cortex is termed a gyrus (plural gyri) and a groove or fissure is termed a sulcus (plural sulci). In the human brain more than two-thirds of the cerebral cortex is buried in the sulci.The cerebral cortex is gray matter, consisting mainly of cell bodies (with astrocytes being the most abundant cell type in the cortex as well as the human brain as a whole) and capillaries. It contrasts with the underlying white matter, consisting mainly of the white myelinated sheaths of neuronal axons. The phylogenetically most recent part of the cerebral cortex, the neocortex (also called isocortex), is differentiated into six horizontal layers; the more ancient part of the cerebral cortex, the hippocampus, has at most three cellular layers. Neurons in various layers connect vertically to form small microcircuits, called cortical columns. Different neocortical regions known as Brodmann areas are distinguished by variations in their cytoarchitectonics (histological structure) and functional roles in sensation, cognition and behavior.