Bipolar neurons in rat visual cortex: A combined
... dendrite, which follows an essentially vertical trajectory, sometimes remaining unbranched, or bifurcating only once to produce a very elongate and narrow dendritic field (for example, cells a, g and h). In other examples, two primary dendrites emerge from one pole and the ascending dendrites produc ...
... dendrite, which follows an essentially vertical trajectory, sometimes remaining unbranched, or bifurcating only once to produce a very elongate and narrow dendritic field (for example, cells a, g and h). In other examples, two primary dendrites emerge from one pole and the ascending dendrites produc ...
Motion sensitive cells in the macaque superior
... sensitive to motion but unselective for the form of the moving stimulus. Cells were selected for further testing on the basis of whether ot not they responded to leftward or rightward movement at the projecting distance of 4 m from the monkey. Furtlaer testing comprised of recording cell responses t ...
... sensitive to motion but unselective for the form of the moving stimulus. Cells were selected for further testing on the basis of whether ot not they responded to leftward or rightward movement at the projecting distance of 4 m from the monkey. Furtlaer testing comprised of recording cell responses t ...
`off` responses in cat visual cortical receptive fields
... 1. A supervised learning procedure was applied to individual cat area 17 neurons to test the possible role of neuronal co-activity in controlling the plasticity of the spatial ‘on—off’ organization of visual cortical receptive fields (RFs). 2. Differential pairing between visual input evoked in a fi ...
... 1. A supervised learning procedure was applied to individual cat area 17 neurons to test the possible role of neuronal co-activity in controlling the plasticity of the spatial ‘on—off’ organization of visual cortical receptive fields (RFs). 2. Differential pairing between visual input evoked in a fi ...
PDF version - Richard Andersen
... corded from the lateral intraparietal area (LIP), a recently defined subdivision of the IPL; and 54 neurons recorded from the neigh- durations was approximately Gaussian. The parameter values of boring part of the IPL, area 7a. Overall, 409 IPL neurons were the distributions were also similar for bo ...
... corded from the lateral intraparietal area (LIP), a recently defined subdivision of the IPL; and 54 neurons recorded from the neigh- durations was approximately Gaussian. The parameter values of boring part of the IPL, area 7a. Overall, 409 IPL neurons were the distributions were also similar for bo ...
18 Coordination in Behavior and Cognition
... to a certain limit set or attractor solution. Mathematically, systems composed of many interacting elements are described in terms of a (large) number of time-dependent states that trace out a trajectory in a high-dimensional statespace (so that the current state is represented by a point in state-s ...
... to a certain limit set or attractor solution. Mathematically, systems composed of many interacting elements are described in terms of a (large) number of time-dependent states that trace out a trajectory in a high-dimensional statespace (so that the current state is represented by a point in state-s ...
Functional neuroanatomy of the primate isocortical motor system
... and transform different aspects of sensory information into appropriate motor commands. The aim of this review is to give a concise overview of the anatomical and functional organization of the agranular frontal isocortex in macaques and to discuss possible mechanisms how parietal and frontal areas ...
... and transform different aspects of sensory information into appropriate motor commands. The aim of this review is to give a concise overview of the anatomical and functional organization of the agranular frontal isocortex in macaques and to discuss possible mechanisms how parietal and frontal areas ...
Basal Ganglia: Mechanisms for Action Selection
... The basal ganglia appear to fulfill the criteria for such a central mechanism (Redgrave et al. 1999). The main input nucleus, the striatum, receives input from every region of cortex, from primary visual, auditory, and somatosensory cortex, through motor cortices, to the subregions of prefrontal cor ...
... The basal ganglia appear to fulfill the criteria for such a central mechanism (Redgrave et al. 1999). The main input nucleus, the striatum, receives input from every region of cortex, from primary visual, auditory, and somatosensory cortex, through motor cortices, to the subregions of prefrontal cor ...
Morphology, Deep cerebellar nuclei, C. gambianus
... deal with [16]. It means that IN receives a large amount of sensory information from the limbs and, in turn, elaborates signals for movement control [16, 29]. The paravermal cortex and the functionally associated IN are considered important structures for limb movement [6]. General, the relatively l ...
... deal with [16]. It means that IN receives a large amount of sensory information from the limbs and, in turn, elaborates signals for movement control [16, 29]. The paravermal cortex and the functionally associated IN are considered important structures for limb movement [6]. General, the relatively l ...
Orbitofrontal Cortex and Human Drug Abuse: Functional Imaging
... Role of the OFC and its Connections in Drug Craving In addition to the aforementioned evidence that the OFC shows an abnormality in rCMRglc, which may be related to some degree to conditioned responses and motivation, findings obtained with PET and fMRI have suggested that activation of the OFC and ...
... Role of the OFC and its Connections in Drug Craving In addition to the aforementioned evidence that the OFC shows an abnormality in rCMRglc, which may be related to some degree to conditioned responses and motivation, findings obtained with PET and fMRI have suggested that activation of the OFC and ...
The Human Expression of Symmetry: Art and - Smith
... to the low-spatial-frequency content of the patterns (since the range criterion is generally proportional to the spatial frequency content of the pattern). The discovery that it is polarityinsensitive complex cells that signal the symmetry axis of symmetric patterns [Lee, 1995 #46] makes it importa ...
... to the low-spatial-frequency content of the patterns (since the range criterion is generally proportional to the spatial frequency content of the pattern). The discovery that it is polarityinsensitive complex cells that signal the symmetry axis of symmetric patterns [Lee, 1995 #46] makes it importa ...
Neuronal Migration and Ventral Subtype Identity in the
... United Kingdom, 4 Division of Developmental Genetics, National Institute of Medical Research, London, United Kingdom ...
... United Kingdom, 4 Division of Developmental Genetics, National Institute of Medical Research, London, United Kingdom ...
Mapping the Structural Core of Human Cerebral Cortex
... have been characterized across different conditions of rest or cognitive load. A major feature of cortical functional connectivity is the default network [12–18], a set of dynamically coupled brain regions that are found to be more highly activated at rest than during the performance of cognitively ...
... have been characterized across different conditions of rest or cognitive load. A major feature of cortical functional connectivity is the default network [12–18], a set of dynamically coupled brain regions that are found to be more highly activated at rest than during the performance of cognitively ...
Mapping the Structural Core of Human Cerebral Cortex
... have been characterized across different conditions of rest or cognitive load. A major feature of cortical functional connectivity is the default network [12–18], a set of dynamically coupled brain regions that are found to be more highly activated at rest than during the performance of cognitively ...
... have been characterized across different conditions of rest or cognitive load. A major feature of cortical functional connectivity is the default network [12–18], a set of dynamically coupled brain regions that are found to be more highly activated at rest than during the performance of cognitively ...
Postnatal growth and column spacing in cat primary visual cortex
... might either cause an enlargement of existing cortical modules, probably without significant changes in neuronal circuitry (“balloon-effect”), or, alternatively, indicate a progressive increase in the number of modules and in the complexity of neuronal circuits. In macaque monkeys, V1 size increased ...
... might either cause an enlargement of existing cortical modules, probably without significant changes in neuronal circuitry (“balloon-effect”), or, alternatively, indicate a progressive increase in the number of modules and in the complexity of neuronal circuits. In macaque monkeys, V1 size increased ...
Imaging development and plasticity in the mouse visual system
... calcium transients associated with neuronal activity in up to hundred cells simultaneously, enabled me to examine MD-induced changes in the functional properties of each neuron independently. I found that, in general, deprived eye responses were weakened and nondeprived eye responses strengthened af ...
... calcium transients associated with neuronal activity in up to hundred cells simultaneously, enabled me to examine MD-induced changes in the functional properties of each neuron independently. I found that, in general, deprived eye responses were weakened and nondeprived eye responses strengthened af ...
Smell, Taste, Texture, and Temperature
... the food with which they had been satiated tasted almost as intense as when they were hungry, though much less pleasant.21 This comparison is consistent with the possibility that activity in the frontal opercular and insular taste cortices, as well as the nucleus of the solitary tract, does not refle ...
... the food with which they had been satiated tasted almost as intense as when they were hungry, though much less pleasant.21 This comparison is consistent with the possibility that activity in the frontal opercular and insular taste cortices, as well as the nucleus of the solitary tract, does not refle ...
Reticular activating system of a central pattern generator
... that are inhibited in the latent phase of scratch. Rubrospinal tract neurons become tonically active during the latent period (Arshavsky et al. 1978c). Some fastigial nuclei (cerebellar) neurons were inhibited during the latent period (Antziferova et al. 1980). Moreover, interpositus nucleus neurons ...
... that are inhibited in the latent phase of scratch. Rubrospinal tract neurons become tonically active during the latent period (Arshavsky et al. 1978c). Some fastigial nuclei (cerebellar) neurons were inhibited during the latent period (Antziferova et al. 1980). Moreover, interpositus nucleus neurons ...
Retinoids and spinal cord development
... transformation model of neural development proposed by Nieuwkoop (1952), developed from his studies on the amphibian embryo. He proposed that neural induction is a two step process. In the first step, the activation step, an activation signal from the mesoderm (chordin, follistatin, noggin) initiates ...
... transformation model of neural development proposed by Nieuwkoop (1952), developed from his studies on the amphibian embryo. He proposed that neural induction is a two step process. In the first step, the activation step, an activation signal from the mesoderm (chordin, follistatin, noggin) initiates ...
CNS*2004 July 18-22, 2004 Baltimore, Maryland
... July 21st the Regisration desk will be open from 8:00 am until 5:00 pm. Oral Sessions: An LCD projector will be available for all speakers to use and the main meeting room is supplied with a large screen and an ampification system. Poster Sessions: Posters should be set up before lunch time and remo ...
... July 21st the Regisration desk will be open from 8:00 am until 5:00 pm. Oral Sessions: An LCD projector will be available for all speakers to use and the main meeting room is supplied with a large screen and an ampification system. Poster Sessions: Posters should be set up before lunch time and remo ...
12 - Humbleisd.net
... • Tonic-clonic (formerly grand mal) seizures – Most severe; last few minutes – Victim loses consciousness, bones broken during intense convulsions, loss of bowel and bladder control, and severe biting of tongue ...
... • Tonic-clonic (formerly grand mal) seizures – Most severe; last few minutes – Victim loses consciousness, bones broken during intense convulsions, loss of bowel and bladder control, and severe biting of tongue ...
Synaptic Integration in Rat Frontal Cortex Shaped by Network Activity
... activity affects the neurons’ integrative properties and what function this may imply at the network level remain largely unknown. Most of our knowledge regarding synaptic communication and integration is based on recordings in vitro, where network activity is strongly diminished or even absent. Her ...
... activity affects the neurons’ integrative properties and what function this may imply at the network level remain largely unknown. Most of our knowledge regarding synaptic communication and integration is based on recordings in vitro, where network activity is strongly diminished or even absent. Her ...
Cortical control of saccades and fixation in man
... FEF; b, SEF; c, peripheral striate and extra-striate cortex; d, area 40; e, area 7, PPC; f, area 22; g, cerebellum; h, mediodorsal thalamus and midbrain; i, insula/area 47; j , foveal striate and extra-striate cortex; k, hippocampus; m, anterior frontal lobe areas 9, 10, 45 and 46; n, areas 24 and 3 ...
... FEF; b, SEF; c, peripheral striate and extra-striate cortex; d, area 40; e, area 7, PPC; f, area 22; g, cerebellum; h, mediodorsal thalamus and midbrain; i, insula/area 47; j , foveal striate and extra-striate cortex; k, hippocampus; m, anterior frontal lobe areas 9, 10, 45 and 46; n, areas 24 and 3 ...
Relationship between muscle output and functional MRI
... 20%, 35%, 50%, 65%, and 80% handgrip force was calculated. Each level was displayed on the oscilloscope as the target, and the subject was asked to match the target with the exerted force. One trial was performed at each level, and the time during which the force was on the target was about 5 s for ...
... 20%, 35%, 50%, 65%, and 80% handgrip force was calculated. Each level was displayed on the oscilloscope as the target, and the subject was asked to match the target with the exerted force. One trial was performed at each level, and the time during which the force was on the target was about 5 s for ...
Spatial tuning of reaching activity in the medial parieto
... of the LED was reduced so that it was barely visible during the task. Indeed, the experimenter could not see the monkey hand approaching the target, even in dark-adapted conditions. ...
... of the LED was reduced so that it was barely visible during the task. Indeed, the experimenter could not see the monkey hand approaching the target, even in dark-adapted conditions. ...
Neural correlates of consciousness
The neural correlates of consciousness (NCC) constitute the minimal set of neuronal events and mechanisms sufficient for a specific conscious percept. Neuroscientists use empirical approaches to discover neural correlates of subjective phenomena. The set should be minimal because, under the assumption that the brain is sufficient to give rise to any given conscious experience, the question is which of its components is necessary to produce it.