Electrophysiological Identification of Tonic and Phasic Neurons in
... action potentials that propagate along neuronal axons (Debanne 2004) and transmit through synapses (Kampa 2007). Little concern is paid on the regulation of sensory information mediated by action potentials in soma itself. Results from spinal cord indicated that different neuronal firing patterns pe ...
... action potentials that propagate along neuronal axons (Debanne 2004) and transmit through synapses (Kampa 2007). Little concern is paid on the regulation of sensory information mediated by action potentials in soma itself. Results from spinal cord indicated that different neuronal firing patterns pe ...
Efficient Event-Driven Simulation of Large Networks of Spiking
... incorporated in the modeling of (recurrent) feedback neural networks thus far as a static prescription for synaptic efficacies, according to some chosen “learning rule.” In this way, a long and important series of results have been obtained, which have made these models candidates for an account of ...
... incorporated in the modeling of (recurrent) feedback neural networks thus far as a static prescription for synaptic efficacies, according to some chosen “learning rule.” In this way, a long and important series of results have been obtained, which have made these models candidates for an account of ...
Extraction of Sensory Parameters from a Neural Map by Primary
... other within the neural map. Therefore, a continuous variation in stimulus direction causes a continuous variation in the spatial pattern of activation. (2) The restriction of the synaptic connections of an interneuron to a unique set of afferents results from the unique anatomy of that interneuron: ...
... other within the neural map. Therefore, a continuous variation in stimulus direction causes a continuous variation in the spatial pattern of activation. (2) The restriction of the synaptic connections of an interneuron to a unique set of afferents results from the unique anatomy of that interneuron: ...
Perception of an odour that is not real
... ► One of the two cranial nerves which doesn’t course through the posterior fossa ► Only neurons which can regenerate (basal cells) ► Only sensation which is not processed in the ...
... ► One of the two cranial nerves which doesn’t course through the posterior fossa ► Only neurons which can regenerate (basal cells) ► Only sensation which is not processed in the ...
Neural Correlates of Object-Associated Choice Behavior
... The perirhinal cortex (PRC) is reportedly important for object recognition memory, with supporting physiological evidence obtained largely from primate studies. Whether neurons in the rodent PRC also exhibit similar physiological correlates of object recognition, however, remains to be determined. W ...
... The perirhinal cortex (PRC) is reportedly important for object recognition memory, with supporting physiological evidence obtained largely from primate studies. Whether neurons in the rodent PRC also exhibit similar physiological correlates of object recognition, however, remains to be determined. W ...
DECODING NEURONAL FIRING AND MODELING NEURAL
... In the vast majority of cases, neuronal spike trains are characterized by a firing rate. This characterization is often thought to eliminate all information arising from spike timing and to be quite distinct from the linear filter approach, but this is not the case. As shown in section 3, precisely ...
... In the vast majority of cases, neuronal spike trains are characterized by a firing rate. This characterization is often thought to eliminate all information arising from spike timing and to be quite distinct from the linear filter approach, but this is not the case. As shown in section 3, precisely ...
The Loss of Glutamate-GABA Harmony in Anxiety Disorders
... homeostasis, which is itself maintained and regulated by two opposite forces acting independently to each other, flowing into a natural cycle and always seeking the balance. The thing is about two main amino acid neurotransmitters, glutamate and GABA, creating the opposite excitatory/inhibitory forc ...
... homeostasis, which is itself maintained and regulated by two opposite forces acting independently to each other, flowing into a natural cycle and always seeking the balance. The thing is about two main amino acid neurotransmitters, glutamate and GABA, creating the opposite excitatory/inhibitory forc ...
cerebellum
... – Granule cells send axons into the molecular layer, which bifurcate, forming parallel fibers that run parallel to the folia. – The parallel fibers run perpendicular to the dendrites of the Purkinje cells. – Each parallel fiber forms excitatory synaptic contacts with numerous Purkinje cells. – All o ...
... – Granule cells send axons into the molecular layer, which bifurcate, forming parallel fibers that run parallel to the folia. – The parallel fibers run perpendicular to the dendrites of the Purkinje cells. – Each parallel fiber forms excitatory synaptic contacts with numerous Purkinje cells. – All o ...
Neuronal Processing of Chemical Information in Crustaceans Chapter 7
... both types of receptor neurons mainly respond to small water-soluble molecules such as amino acids. The dichotomy in sensilla structure is reflected in the organization of the associated CNS pathways. Olfactory receptor neurons selectively innervate a synaptic region in the midbrain, the olfactory l ...
... both types of receptor neurons mainly respond to small water-soluble molecules such as amino acids. The dichotomy in sensilla structure is reflected in the organization of the associated CNS pathways. Olfactory receptor neurons selectively innervate a synaptic region in the midbrain, the olfactory l ...
Sensorimotor cortical influences on cuneate nucleus
... recordings were low-pass filtered at 100 Hz to eliminate slow waves that could interfere with the analysis. Auto- and cross-correlograms of single spikes were computed for periods of 2–10 min of stable activity to reveal the frequency of oscillations and to determine the degree of synchrony between ...
... recordings were low-pass filtered at 100 Hz to eliminate slow waves that could interfere with the analysis. Auto- and cross-correlograms of single spikes were computed for periods of 2–10 min of stable activity to reveal the frequency of oscillations and to determine the degree of synchrony between ...
Development of the Nervous System of Carinina ochracea
... immunoreactivity slightly earlier on one side of the body than on the other. Cross reactivity of antibodies was not detected in any combination tested. Thus, the different combinations were used to relate those signals to each other, of which the respective antibodies could not be double-stained. An ...
... immunoreactivity slightly earlier on one side of the body than on the other. Cross reactivity of antibodies was not detected in any combination tested. Thus, the different combinations were used to relate those signals to each other, of which the respective antibodies could not be double-stained. An ...
Effect of Adrenalectomy on Miniature Inhibitory Postsynaptic
... 10.1152/jn.00401.2002. Within the rat paraventricular nucleus of the hypothalamus two types of neurons have been distinguished based on morphological appearance, i.e., parvocellular and magnocellular neurons. The parvocellular neurons play a key role in regulating the activity of the hypothalamo–pit ...
... 10.1152/jn.00401.2002. Within the rat paraventricular nucleus of the hypothalamus two types of neurons have been distinguished based on morphological appearance, i.e., parvocellular and magnocellular neurons. The parvocellular neurons play a key role in regulating the activity of the hypothalamo–pit ...
Inan et al., 2006
... mediates barrel map formation using knock-out mice that lack type II regulatory subunits of PKA (PKARII). We show that PKARIImediated PKA function is required for proper dendritogenesis and the organization of cortical layer IV neurons into barrels, but not for the development and plasticity of t ...
... mediates barrel map formation using knock-out mice that lack type II regulatory subunits of PKA (PKARII). We show that PKARIImediated PKA function is required for proper dendritogenesis and the organization of cortical layer IV neurons into barrels, but not for the development and plasticity of t ...
Individual olfactory sensory neurons project into more than one
... there to innervate a glomerulus close to the midline (lower inset). In all cases, irrespectively of the number of glomeruli innervated by one primary axon, not less than two axonal branches entered each glomerulus, usually from opposite sides, as shown in Figure 3C. In Amphibia, the olfactory bulb’s ...
... there to innervate a glomerulus close to the midline (lower inset). In all cases, irrespectively of the number of glomeruli innervated by one primary axon, not less than two axonal branches entered each glomerulus, usually from opposite sides, as shown in Figure 3C. In Amphibia, the olfactory bulb’s ...
Enlargement of Axo-Somatic Contacts Formed by
... Excitability of the PFC is determined, in part, by the intracortical circuitry comprised of excitatory pyramidal neurons and inhibitory interneurons. Of them, the layer V pyramidal neurons contribute strongly to the excitatory outflow from the PFC to descending cortical and subcortical regions mediat ...
... Excitability of the PFC is determined, in part, by the intracortical circuitry comprised of excitatory pyramidal neurons and inhibitory interneurons. Of them, the layer V pyramidal neurons contribute strongly to the excitatory outflow from the PFC to descending cortical and subcortical regions mediat ...
Olfactory tract transection in neonatal rats: Evidence for Mitral cell
... functional recovery following nerve transection has been reported2. Munirathinam et al3. have demonstrated the axonal regeneration following olfactory tract transection. However, the study did not provide any evidence for the functional restoration in terms of integrated electrical activity between ...
... functional recovery following nerve transection has been reported2. Munirathinam et al3. have demonstrated the axonal regeneration following olfactory tract transection. However, the study did not provide any evidence for the functional restoration in terms of integrated electrical activity between ...
Hybrid Scheme for Modeling Local Field Potentials from Point
... (http://www.opensourcebrain.org/ projects/potjansdiesmann2014). The network model describes 1 mm2 of primary sensory cortex and consists of 4 layers with one excitatory (E) and one inhibitory (I) neuron population each, as illustrated in Fig. 1A. The network receives modulated thalamic input in addi ...
... (http://www.opensourcebrain.org/ projects/potjansdiesmann2014). The network model describes 1 mm2 of primary sensory cortex and consists of 4 layers with one excitatory (E) and one inhibitory (I) neuron population each, as illustrated in Fig. 1A. The network receives modulated thalamic input in addi ...
Climbing Neuronal Activity as an Event
... To obtain the activity plots in Figure 1c, we calculated mean firing rates across bins of 250 msec and averaged over the indicated number of trials (n; see legend of Fig. 1). For neurons showing stimulus-selective delay activity we averaged over trials with the same pair of sample and test stimuli ( ...
... To obtain the activity plots in Figure 1c, we calculated mean firing rates across bins of 250 msec and averaged over the indicated number of trials (n; see legend of Fig. 1). For neurons showing stimulus-selective delay activity we averaged over trials with the same pair of sample and test stimuli ( ...
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... and function rather than by the correlation of neuronal activity and behavioral performance. The identification of the hippocampus code, i.e. the set of computational principles underlying the input-output transformations of neural activity, might ultimately provide a unifying understanding of its r ...
... and function rather than by the correlation of neuronal activity and behavioral performance. The identification of the hippocampus code, i.e. the set of computational principles underlying the input-output transformations of neural activity, might ultimately provide a unifying understanding of its r ...
Topographically Specific Hippocampal Projections Target Functionally Distinct Prefrontal Areas in the
... orbital areas. In addition, there were differences in the topography of afferent neurons projecting to medial when compared with orbital cortices. Labeled neurons innervating medial cortices were found mainly i n the CA1’ and CA1 fields rostrally, but originated in the subicular fields caudally. In ...
... orbital areas. In addition, there were differences in the topography of afferent neurons projecting to medial when compared with orbital cortices. Labeled neurons innervating medial cortices were found mainly i n the CA1’ and CA1 fields rostrally, but originated in the subicular fields caudally. In ...
Patterns of sensory intermodality relationships in the cerebral cortex
... In agreement with previous single tracer studies, our results indicate that the central core of sensory areas receives projections mainly from a set of association areas located in a ringlike fashion along the margin of the cortical mantle. The visual cortex received projections from areas 48/49, ar ...
... In agreement with previous single tracer studies, our results indicate that the central core of sensory areas receives projections mainly from a set of association areas located in a ringlike fashion along the margin of the cortical mantle. The visual cortex received projections from areas 48/49, ar ...
Down - 서울대 Biointelligence lab
... Fig. 4.13 Some sources of nonlinear (modulatory) effects between synapses as modeled by sigma-pi nodes. (A) shunting (divisive) inhibition, which is often recorded as the effect of inhibitory synapses on the cell body. (B) The effect of simultaneously activated voltage-gated excitatory synapses that ...
... Fig. 4.13 Some sources of nonlinear (modulatory) effects between synapses as modeled by sigma-pi nodes. (A) shunting (divisive) inhibition, which is often recorded as the effect of inhibitory synapses on the cell body. (B) The effect of simultaneously activated voltage-gated excitatory synapses that ...
facing page
... persistent effect after 90 days. So, these animals had a three-month period without exposure. We have been focused on two main hippocampal areas: CA1 and CA3. Both areas have specific structures, molecular peculiarities and neuronal networks. In these regions we evaluated the effect of toluene misus ...
... persistent effect after 90 days. So, these animals had a three-month period without exposure. We have been focused on two main hippocampal areas: CA1 and CA3. Both areas have specific structures, molecular peculiarities and neuronal networks. In these regions we evaluated the effect of toluene misus ...
The Loss of Glutamate-GABA Harmony in Anxiety Disorders
... homeostasis, which is itself maintained and regulated by two opposite forces acting independently to each other, flowing into a natural cycle and always seeking the balance. The thing is about two main amino acid neurotransmitters, glutamate and GABA, creating the opposite excitatory/inhibitory forc ...
... homeostasis, which is itself maintained and regulated by two opposite forces acting independently to each other, flowing into a natural cycle and always seeking the balance. The thing is about two main amino acid neurotransmitters, glutamate and GABA, creating the opposite excitatory/inhibitory forc ...
the superior Olivary complex
... of the MOC neuron (Liberman & Brown, 1986). The marginal cell region of the anteroventral cochlear nucleus (AVCN) project bilaterally to MOC neurons. It is hypothesized that the marginal cells provide information about sound intensity as part of a feedback gain control system comprising the cochlea, ...
... of the MOC neuron (Liberman & Brown, 1986). The marginal cell region of the anteroventral cochlear nucleus (AVCN) project bilaterally to MOC neurons. It is hypothesized that the marginal cells provide information about sound intensity as part of a feedback gain control system comprising the cochlea, ...