PDF - Center for Neural Science
... behaviors. That a cortical area exhibits a new type of behavior does not necessarily mean that the circuit must possess unique biological machineries completely different from those of other areas. Hence, persistent activity may be generated in the PFC when the strength of recurrent excitation (medi ...
... behaviors. That a cortical area exhibits a new type of behavior does not necessarily mean that the circuit must possess unique biological machineries completely different from those of other areas. Hence, persistent activity may be generated in the PFC when the strength of recurrent excitation (medi ...
Flow of information for emotions through temporal and orbitofrontal pathways REVIEW
... eulaminate 1). The caudally adjacent areas, including areas 13, OPro and orbital area 25, are dysgranular in type, characterized by the presence of a thin and incipient granular layer 4 (Fig. 1B). The most caudally located orbitofrontal cortex lacks a granular layer 4, and is thus agranular in type ...
... eulaminate 1). The caudally adjacent areas, including areas 13, OPro and orbital area 25, are dysgranular in type, characterized by the presence of a thin and incipient granular layer 4 (Fig. 1B). The most caudally located orbitofrontal cortex lacks a granular layer 4, and is thus agranular in type ...
Document
... (lower limb) and superior (trunk) and middle (upper limb) parts of postcentral gyrus. Lateral spinothalamic tract conveys pain and temperature sensations. It comprises three neurons. Secondary neurons decussate in white commissure of spinal cord. Decussation is called low, for the tract reaches the ...
... (lower limb) and superior (trunk) and middle (upper limb) parts of postcentral gyrus. Lateral spinothalamic tract conveys pain and temperature sensations. It comprises three neurons. Secondary neurons decussate in white commissure of spinal cord. Decussation is called low, for the tract reaches the ...
Large-Scale Fluorescence Calcium-Imaging
... photophysical properties in response to variations in intracellular [Ca2þ]. The detailed biophysical processes underlying Ca2þ imaging have been reviewed at length elsewhere (Grienberger and Konnerth 2012). Thus, this section focuses more on the enabling features and pitfalls that memory researchers ...
... photophysical properties in response to variations in intracellular [Ca2þ]. The detailed biophysical processes underlying Ca2þ imaging have been reviewed at length elsewhere (Grienberger and Konnerth 2012). Thus, this section focuses more on the enabling features and pitfalls that memory researchers ...
emotional learning: a computational model of the amygdala
... describes yet another version of the theory. In some respects, the learning model proposed by Grossberg (1987) is also an instance of the two-process idea. The goal of the present work is to show that ¢ndings from neurophysiology can be used to give new insights into the emotional process in a two-p ...
... describes yet another version of the theory. In some respects, the learning model proposed by Grossberg (1987) is also an instance of the two-process idea. The goal of the present work is to show that ¢ndings from neurophysiology can be used to give new insights into the emotional process in a two-p ...
weiten6_PPT04
... that give rise to particular colors, as you can see here for blue and yellow, which both also reflect back a little green. When we mix blue and yellow paint, the mixture absorbs all the colors that blue and yellow absorbed individually. The mixture is subtractive because more wavelengths are removed ...
... that give rise to particular colors, as you can see here for blue and yellow, which both also reflect back a little green. When we mix blue and yellow paint, the mixture absorbs all the colors that blue and yellow absorbed individually. The mixture is subtractive because more wavelengths are removed ...
Formation, Maturation, and Disorders of Brain Neocortex
... radial glial cells are regularly aligned. 8, Migration stage of neurons destined for layers 6 to 4. The RGC are grouped in fascicles throughout the entire thickness of the neural tube from the ventricular zone to the pial surface. C, Mammalian RGC distribution during the migration period of neurons ...
... radial glial cells are regularly aligned. 8, Migration stage of neurons destined for layers 6 to 4. The RGC are grouped in fascicles throughout the entire thickness of the neural tube from the ventricular zone to the pial surface. C, Mammalian RGC distribution during the migration period of neurons ...
Topographic Maps in Human Frontal Cortex Revealed in Memory
... subsequent target locations were marked counterclockwise through 12 or 8 equally spaced positions. In the 12 locations version of the task (Sereno et al. 2001), the peripheral locations were arranged clockwise, whereas in the 8 locations version of the task, the 1 and 2 o’clock, 3 and 4 o’clock, 7 a ...
... subsequent target locations were marked counterclockwise through 12 or 8 equally spaced positions. In the 12 locations version of the task (Sereno et al. 2001), the peripheral locations were arranged clockwise, whereas in the 8 locations version of the task, the 1 and 2 o’clock, 3 and 4 o’clock, 7 a ...
NEURAL CONNECTIONS: Some You Use, Some You Lose
... densities -- the number of synapses per unit area or unit volume of cortical tissue -- vary over the life span in a species. Counting synapses in studies like these is the scientific equivalent of estimating the number of needles in a haystack, when both the number of needles and the size of the ha ...
... densities -- the number of synapses per unit area or unit volume of cortical tissue -- vary over the life span in a species. Counting synapses in studies like these is the scientific equivalent of estimating the number of needles in a haystack, when both the number of needles and the size of the ha ...
PDF - Oxford Academic - Oxford University Press
... scanner, so that they performed the task with the accuracy of >90%. Other tasks required no training of the subjects. During the experiments, the Syn, Sem, Pho and Voi tasks were conducted in separate runs, while the Con task served as the baseline task in all runs. In the Con task, the participants ...
... scanner, so that they performed the task with the accuracy of >90%. Other tasks required no training of the subjects. During the experiments, the Syn, Sem, Pho and Voi tasks were conducted in separate runs, while the Con task served as the baseline task in all runs. In the Con task, the participants ...
Telencephalon
... Globus pallidus is divided into external (GPe; lateral) and internal (GPi; medial) segments ...
... Globus pallidus is divided into external (GPe; lateral) and internal (GPi; medial) segments ...
Messages from the Brain Connectivity Regarding Neural Correlates
... There is a general consensus that functional segregation is a multiscale phenomenon, ranging from specialized neurons to neuronal populations and cortical areas [17]. On the other hand, most complex cognitive processes require the functional integration of widely distributed brain areas for coherent ...
... There is a general consensus that functional segregation is a multiscale phenomenon, ranging from specialized neurons to neuronal populations and cortical areas [17]. On the other hand, most complex cognitive processes require the functional integration of widely distributed brain areas for coherent ...
Neuronal Clusters in the Primate Motor Cortex during Interception of
... identified previously in human subjects. Single-cell activity was recorded from the arm area of the primary motor cortex in these two animals, and the neurons were classified based on the temporal patterns in their activity, using a nonhierarchical cluster analysis. Results of this analysis revealed ...
... identified previously in human subjects. Single-cell activity was recorded from the arm area of the primary motor cortex in these two animals, and the neurons were classified based on the temporal patterns in their activity, using a nonhierarchical cluster analysis. Results of this analysis revealed ...
Visuomotor Functions in the Frontal Lobe
... the same level as V3 and V4, whereas the medial FEF (8m), which produces longer saccades, is at the same level as TE, LIP, V3A, and FST. Anatomically, the FEF is feedforward to several occipital, parietal, and temporal areas. Panel adapted with permission from Markov et al. (2014). (c) Hierarchy of ...
... the same level as V3 and V4, whereas the medial FEF (8m), which produces longer saccades, is at the same level as TE, LIP, V3A, and FST. Anatomically, the FEF is feedforward to several occipital, parietal, and temporal areas. Panel adapted with permission from Markov et al. (2014). (c) Hierarchy of ...
3.05 Neural Substrates of Remembering – Electroencephalographic
... recordings using a mastoid or average-mastoid reference, because this recording method is used in a majority of the relevant memory studies. Like any reference that can be used during recording or digitally created afterward, the mastoid reference is not inactive, as potentials generated near this l ...
... recordings using a mastoid or average-mastoid reference, because this recording method is used in a majority of the relevant memory studies. Like any reference that can be used during recording or digitally created afterward, the mastoid reference is not inactive, as potentials generated near this l ...
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 ...
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... mechanisms underpinning these conditions remain poorly understood. Towards this goal, in this work, we aim to correlate the human ocular perceptions with visual hallucinations, and map them to their cerebral origins. Methods: An fMRI study was performed to examine the visual cortical areas includin ...
... mechanisms underpinning these conditions remain poorly understood. Towards this goal, in this work, we aim to correlate the human ocular perceptions with visual hallucinations, and map them to their cerebral origins. Methods: An fMRI study was performed to examine the visual cortical areas includin ...
Long-term use of psychedelic drugs is associated with differences in
... Table 1 shows sociodemographic data. Between-group comparisons using independent samples Student’s t-tests and χ2 did not show any significant differences for any of the matching variables used. Neither were differences found between groups regarding employment, marital status, or tobacco use. Howeve ...
... Table 1 shows sociodemographic data. Between-group comparisons using independent samples Student’s t-tests and χ2 did not show any significant differences for any of the matching variables used. Neither were differences found between groups regarding employment, marital status, or tobacco use. Howeve ...
19 CORTICAL PROJECTIONS FROM TWO PRESTRIATE AREAS IN
... occurs within the columns between the cells of the different layers 6. Throughout this retinal-geniculate-striate cortical system and then on to the anatomically defined areas 18 and 191,16 and in spite of the repeated convergence that seemingly occurs, a gross topography is maintained anatomically. ...
... occurs within the columns between the cells of the different layers 6. Throughout this retinal-geniculate-striate cortical system and then on to the anatomically defined areas 18 and 191,16 and in spite of the repeated convergence that seemingly occurs, a gross topography is maintained anatomically. ...
Comparing the Functional Representations of Central and Border
... barrels are located centrally within the PMBSF (central whiskers), it is unclear whether a whisker with a barrel at the border of the PMBSF (border whisker) also has a large functional representation. Although whisker responses have been recorded up to ⬃300 m away from the appropriate barrel into t ...
... barrels are located centrally within the PMBSF (central whiskers), it is unclear whether a whisker with a barrel at the border of the PMBSF (border whisker) also has a large functional representation. Although whisker responses have been recorded up to ⬃300 m away from the appropriate barrel into t ...
Relationship of Prefrontal Connections to Inhibitory Systems in Superior Temporal
... evidence in both human and non-human primates that all prefrontal cortices have a role in inhibitory control, albeit within the domain of their specialization (for reviews see Shimamura, 1995; Roberts and Wallis, 2000). The phenomenon of inhibitory control is exemplified at the functional level in th ...
... evidence in both human and non-human primates that all prefrontal cortices have a role in inhibitory control, albeit within the domain of their specialization (for reviews see Shimamura, 1995; Roberts and Wallis, 2000). The phenomenon of inhibitory control is exemplified at the functional level in th ...
The role of neuronal synchronization in selective attention
... change had occurred. This finding suggests that the processing or the signalling of a sensory change is more efficient when it is handled by an area that is engaged in enhanced gamma-band synchronization [6]. Importantly, the influence of local synchronization of behavioural responses was spatiall ...
... change had occurred. This finding suggests that the processing or the signalling of a sensory change is more efficient when it is handled by an area that is engaged in enhanced gamma-band synchronization [6]. Importantly, the influence of local synchronization of behavioural responses was spatiall ...
Mammalian Cerebral Cortex: Embryonic Development
... this stage, some subpial neurons start to develop specific morphological features. Some neurons, sandwiched among the fibers, assume a horizontal morphology and tend to occupy the subpial upper region, while others assume a stellate morphology and tend to occupy its deeper region (Fig. 2.1c). The e ...
... this stage, some subpial neurons start to develop specific morphological features. Some neurons, sandwiched among the fibers, assume a horizontal morphology and tend to occupy the subpial upper region, while others assume a stellate morphology and tend to occupy its deeper region (Fig. 2.1c). The e ...
Proc. Natl. Acad. Sci. USA
... paired associates did not elicit significantly correlated responses either for set A (V, P . 0.3) or for set B (‚, P . 0.4). Fig. 5 compares the responsiveness of the cells in the three groups (two-way ANOVA and t test). The results for the two monkeys were not significantly different (P . 0.25) in ...
... paired associates did not elicit significantly correlated responses either for set A (V, P . 0.3) or for set B (‚, P . 0.4). Fig. 5 compares the responsiveness of the cells in the three groups (two-way ANOVA and t test). The results for the two monkeys were not significantly different (P . 0.25) in ...