USC Brain Project Specific Aims
... It is also found, for example, in somatosensory cortex. Somatosensory neurons also have a receptive field, a preferred stimulus, and a tuning ...
... It is also found, for example, in somatosensory cortex. Somatosensory neurons also have a receptive field, a preferred stimulus, and a tuning ...
The GABAergic system in schizophrenia
... neural circuits governing behavioral responses. This defect would be exacerbated under stressful conditions in which increased monoaminergic drive would increase disinhibitory input onto those GABA neurons, producing abnormalities of perceptual and cognitive integration (Roberts, 1972). Since this i ...
... neural circuits governing behavioral responses. This defect would be exacerbated under stressful conditions in which increased monoaminergic drive would increase disinhibitory input onto those GABA neurons, producing abnormalities of perceptual and cognitive integration (Roberts, 1972). Since this i ...
A thalamic reticular networking model of consciousness
... a conscious state would be established when a TRNmodulated thalamocortical network activates over a certain threshold to initiate overall synchronization. In contrast, in the sub-threshold state, sensory inputs may simply pass through the thalamus without the generation of conscious awareness. In ot ...
... a conscious state would be established when a TRNmodulated thalamocortical network activates over a certain threshold to initiate overall synchronization. In contrast, in the sub-threshold state, sensory inputs may simply pass through the thalamus without the generation of conscious awareness. In ot ...
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 ...
Functional organization of inferior parietal lobule convexity in the
... were presented with pieces of food or objects of different size, shape and orientation, located in different space quadrants, with respect to the monkey’s body. The monkeys were allowed to reach for and grasp them, and, in the case of food, to bring it to the mouth and eat it. Hand movements were te ...
... were presented with pieces of food or objects of different size, shape and orientation, located in different space quadrants, with respect to the monkey’s body. The monkeys were allowed to reach for and grasp them, and, in the case of food, to bring it to the mouth and eat it. Hand movements were te ...
Purves ch. 8 + Kandel ch. 23 - Weizmann Institute of Science
... The long axis of the corpuscle is usually oriented parallel to the stretch lines in skin; thus, Ruffini’s corpuscles are particularly sensitive to the cutaneous stretching produced by digit or limb movements. They account for about 20% of the receptors in the human hand and do not elicit any particu ...
... The long axis of the corpuscle is usually oriented parallel to the stretch lines in skin; thus, Ruffini’s corpuscles are particularly sensitive to the cutaneous stretching produced by digit or limb movements. They account for about 20% of the receptors in the human hand and do not elicit any particu ...
What Can an Orbitofrontal Cortex- Endowed Animal
... within the human brain. Our main hypothesis was that prolonged sensory experience would modulate neural representations of odor quality in areas previously implicated in coding of this perceptual feature, including piriform cortex33,34 and OFC.6,33,35–37 Moreover, in parallel to the neural effects, ...
... within the human brain. Our main hypothesis was that prolonged sensory experience would modulate neural representations of odor quality in areas previously implicated in coding of this perceptual feature, including piriform cortex33,34 and OFC.6,33,35–37 Moreover, in parallel to the neural effects, ...
decision-making in the primate brain
... learning models (Sutton and Barto 1981), nicely account for these results because once the relationship between cue A and reward has been learned, the prediction error term goes to 0 and remains unchanged when the combined stimulus AX is followed by a reward in stage 2; hence, no new learning occurs ...
... learning models (Sutton and Barto 1981), nicely account for these results because once the relationship between cue A and reward has been learned, the prediction error term goes to 0 and remains unchanged when the combined stimulus AX is followed by a reward in stage 2; hence, no new learning occurs ...
Grasping the Intentions of Others with One`s Own Mirror Neuron
... away? The aim of the present study is to investigate the neural basis of intention understanding in this sense and, more specifically, the role played by the human mirror neuron system in this type of intention understanding. The term ‘‘intention’’ will be always used in this specific sense, to indica ...
... away? The aim of the present study is to investigate the neural basis of intention understanding in this sense and, more specifically, the role played by the human mirror neuron system in this type of intention understanding. The term ‘‘intention’’ will be always used in this specific sense, to indica ...
CS325 Artificial Intelligence Chs. 9, 12 – Knowledge Representation
... Quiroga R, Reddy L, Kreiman G, et al. (2005). Invariant visual representation by single neurons in the human brain. Nature, 435(7045):1102–1107 Stark E, Globerson A, Asher I, et al. (2008). Correlations between Groups of Premotor ...
... Quiroga R, Reddy L, Kreiman G, et al. (2005). Invariant visual representation by single neurons in the human brain. Nature, 435(7045):1102–1107 Stark E, Globerson A, Asher I, et al. (2008). Correlations between Groups of Premotor ...
Multisensory anatomical pathways - Centre de Recherche Cerveau
... have a topological organization (Batardiere et al., 1998) with a relatively compact projection zones probably linked to cortical functional modules. For example, in the cat, the auditory projection from area PAF is organized with respect to the retinotopic organization of the primary visual cortex ( ...
... have a topological organization (Batardiere et al., 1998) with a relatively compact projection zones probably linked to cortical functional modules. For example, in the cat, the auditory projection from area PAF is organized with respect to the retinotopic organization of the primary visual cortex ( ...
Perceptual and Semantic Contributions to
... Consequently and as above, for this analysis, we pooled all of the sounds presented initially together (mean HNR ± SEM = 9.7 ± 1.4; range –2.0 to 27.1) and compared the HNR from this pooled group with that from the group of sounds repeated semantically (10.9 ± 2.3; range –3.0 to 24.9). There was no ...
... Consequently and as above, for this analysis, we pooled all of the sounds presented initially together (mean HNR ± SEM = 9.7 ± 1.4; range –2.0 to 27.1) and compared the HNR from this pooled group with that from the group of sounds repeated semantically (10.9 ± 2.3; range –3.0 to 24.9). There was no ...
The columnar organization of the neocortex
... areas of the neocortex are composed of smaller units, local neural circuits repeated iteratively within each area. Modules may vary in cell type and number, in internal and external connectivity, and in mode of neuronal processing between different large entities; within any single large entity they ...
... areas of the neocortex are composed of smaller units, local neural circuits repeated iteratively within each area. Modules may vary in cell type and number, in internal and external connectivity, and in mode of neuronal processing between different large entities; within any single large entity they ...
Is neocortex essentially multisensory?
... Auditory and somatosensory processing in visual cortex Auditory sensitivity was reported by early studies in the cat visual cortex [57]. Morrell reported that up to 41% of visual neurons could be driven by auditory stimuli and that these neurons showed a remarkable degree of auditory spatial tuning ...
... Auditory and somatosensory processing in visual cortex Auditory sensitivity was reported by early studies in the cat visual cortex [57]. Morrell reported that up to 41% of visual neurons could be driven by auditory stimuli and that these neurons showed a remarkable degree of auditory spatial tuning ...
Doubly stochastic processes: an approach for understanding central
... Abstract— In this paper we argue that doubly stochastic processes are a natural tool for understanding certain types of information processing in the central nervous system. Doubly stochastic processes themselves are not new and have been investigated in a mathematical context; however, they have no ...
... Abstract— In this paper we argue that doubly stochastic processes are a natural tool for understanding certain types of information processing in the central nervous system. Doubly stochastic processes themselves are not new and have been investigated in a mathematical context; however, they have no ...
PDF - Kalina Christoff
... class in particular stands out not only for its radical psychological effects, but also for the highly charged political and legal atmosphere that has surrounded it since its widespread adoption about 50 ...
... class in particular stands out not only for its radical psychological effects, but also for the highly charged political and legal atmosphere that has surrounded it since its widespread adoption about 50 ...
Computing Action Potentials by Phase Interference in
... advanced invertebrates such as cephalopod molluscs [16] and decapod crustacea [15]. Thought processes in the vertebrates are known to occur very quickly. Simple shape recognition and learning has been timed to be less than 200ms removing motor input and output ...
... advanced invertebrates such as cephalopod molluscs [16] and decapod crustacea [15]. Thought processes in the vertebrates are known to occur very quickly. Simple shape recognition and learning has been timed to be less than 200ms removing motor input and output ...
Stochastic dynamics as a principle of brain function
... because any parameters must describe a probability distribution and not a single point in the parameter space. Therefore, a reduction of the integrate-and-fire models is necessary in order to establish a systematic relation between structure (parameters), dynamics, and functional behavior (i.e., to s ...
... because any parameters must describe a probability distribution and not a single point in the parameter space. Therefore, a reduction of the integrate-and-fire models is necessary in order to establish a systematic relation between structure (parameters), dynamics, and functional behavior (i.e., to s ...
Feeling others` painful actions: The sensorimotor
... (grasps) and those that do not (withdrawals). Some somatosensory regions should then show increased activation for observed grasps, irrespective of whether the object is painful or not (the main effect of grasps vs. withdrawals). However, if certain somatosensory areas have an integrative role in re ...
... (grasps) and those that do not (withdrawals). Some somatosensory regions should then show increased activation for observed grasps, irrespective of whether the object is painful or not (the main effect of grasps vs. withdrawals). However, if certain somatosensory areas have an integrative role in re ...
Cortical evolution and development: Conserved
... The evidence showing that the patterns of relative brain allometry in mammals, particularly disproportional enlargement or reduction of the volumes of particular brain subdivisions with respect to overall brain volume, are well predicted by a conserved order of neurogenesis is reviewed. Developmenta ...
... The evidence showing that the patterns of relative brain allometry in mammals, particularly disproportional enlargement or reduction of the volumes of particular brain subdivisions with respect to overall brain volume, are well predicted by a conserved order of neurogenesis is reviewed. Developmenta ...
Neural correlates of attention in primate visual cortex
... V1 is influenced by the attentional conditions (see Ref. 21 for a review). Second, PET imaging experiments22,23 and a study24 in an individual suffering from a bilateral lesion of the human MT homolog showed specific attentional influences in early areas of the human dorsal visual pathway. These stu ...
... V1 is influenced by the attentional conditions (see Ref. 21 for a review). Second, PET imaging experiments22,23 and a study24 in an individual suffering from a bilateral lesion of the human MT homolog showed specific attentional influences in early areas of the human dorsal visual pathway. These stu ...