Distinct core thalamocortical pathways to central and dorsal primary
... (Schreiner et al., 2000). The cNB region has the highest spectral resolution (Q factor) measured with sound level at 40 decibels above threshold (Q40). A small dNB region has higher spectral resolution than adjacent cBB and dBB regions but lower median spectral resolution than the cNB region (Imaizu ...
... (Schreiner et al., 2000). The cNB region has the highest spectral resolution (Q factor) measured with sound level at 40 decibels above threshold (Q40). A small dNB region has higher spectral resolution than adjacent cBB and dBB regions but lower median spectral resolution than the cNB region (Imaizu ...
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... means that when a neuron fires, the nearby neurons in its local area are more likely to fire. This leads to a smoother representational map. The topographic map can be realized by not only considering a nonzero-responding neuron as a winner, but also its 3 3 neighbors, which are the neurons with the ...
... means that when a neuron fires, the nearby neurons in its local area are more likely to fire. This leads to a smoother representational map. The topographic map can be realized by not only considering a nonzero-responding neuron as a winner, but also its 3 3 neighbors, which are the neurons with the ...
Morphology and Physiology of the Cerebellar Vestibulolateral Lobe
... prevailing views derived from mammalian species have centered around either intrinsic changes within the cerebellum (Raymond and Lisberger 1998) through the mechanisms of long-term depression and potentiation (Boyden et al. 2004; Ito 1989) or, in more recent years, multiple plasticity mechanisms/ si ...
... prevailing views derived from mammalian species have centered around either intrinsic changes within the cerebellum (Raymond and Lisberger 1998) through the mechanisms of long-term depression and potentiation (Boyden et al. 2004; Ito 1989) or, in more recent years, multiple plasticity mechanisms/ si ...
Mechanism of Irregular Firing of Suprachiasmatic Nucleus Neurons
... The mechanisms of irregular firing of spontaneous action potentials in neurons from the rat suprachiasmatic nucleus (SCN) were studied in hypothalamic slices using cell-attached and whole cell recording. The firing pattern of spontaneous action potentials could be divided into regular and irregular, ...
... The mechanisms of irregular firing of spontaneous action potentials in neurons from the rat suprachiasmatic nucleus (SCN) were studied in hypothalamic slices using cell-attached and whole cell recording. The firing pattern of spontaneous action potentials could be divided into regular and irregular, ...
The Location and Function of NMDA Receptors in Cat
... The effects of visual deprivation on development of the visual cortex are generally specific to the deprivation. Monocular deprivation leads to a decrease in the influence of the deprived eye without changes in orientation or direction selectivity (Wiese1and Hubel, 1963); orientation or direction de ...
... The effects of visual deprivation on development of the visual cortex are generally specific to the deprivation. Monocular deprivation leads to a decrease in the influence of the deprived eye without changes in orientation or direction selectivity (Wiese1and Hubel, 1963); orientation or direction de ...
Reward-Dependent Spatial Selectivity of Anticipatory Activity in
... common feature (Fig. 4). Neurons A–C showed similar discharge patterns, such that their activity reached a peak at or just ...
... common feature (Fig. 4). Neurons A–C showed similar discharge patterns, such that their activity reached a peak at or just ...
Analysis of Firing Correlations Between Sympathetic Premotor
... became progressively smaller and wider during the burst, great care was necessary to identify them as such rather than as action potentials of another neuron. Third, in cases where the amplitude of the second spike was relatively low, it was important to check that the discrimination included no fal ...
... became progressively smaller and wider during the burst, great care was necessary to identify them as such rather than as action potentials of another neuron. Third, in cases where the amplitude of the second spike was relatively low, it was important to check that the discrimination included no fal ...
Dynamic Stochastic Synapses as Computational Units
... of changes in specific parameters of a biological synapse. After the presentation of this model in section 2, we analyze the computational consequences of this model in section 3. We focus here on computations on short spike trains, which have not been addressed previously in the literature. 2 A Mod ...
... of changes in specific parameters of a biological synapse. After the presentation of this model in section 2, we analyze the computational consequences of this model in section 3. We focus here on computations on short spike trains, which have not been addressed previously in the literature. 2 A Mod ...
Copyright 1984 by Desav, Paul Henri All Rights Reserved
... Fibers from the thalamus could be traced to the striatum and DVR but only a few were seen entering dorsal cortex: in fact, these fibers do continue into dorsal cortex but presumably are not stained because they immediately form fine preterminal branches). There have been only a few studies of the re ...
... Fibers from the thalamus could be traced to the striatum and DVR but only a few were seen entering dorsal cortex: in fact, these fibers do continue into dorsal cortex but presumably are not stained because they immediately form fine preterminal branches). There have been only a few studies of the re ...
String Art: Axon Tracts in the Spinal Cord Spinal reflex arcs
... motor neurons on both sides of the spinal cord. ...
... motor neurons on both sides of the spinal cord. ...
Stereoscopic Mechanisms in Monkey Visual Cortex: Binocular
... field was made to alternate from identical in the 2 eyes (correlation) to different (uncorrelation). Test areas of the size and orientation of the selected bar were used, but the neuron’s sensitivity was usually evaluated with larger square or rectangular patterns (1.0”-4.0” side); the background su ...
... field was made to alternate from identical in the 2 eyes (correlation) to different (uncorrelation). Test areas of the size and orientation of the selected bar were used, but the neuron’s sensitivity was usually evaluated with larger square or rectangular patterns (1.0”-4.0” side); the background su ...
MMNeuropharm2011
... 3.1. Excitatory synapses A single in vivo cocaine exposure is enough to cause synaptic adaptations at excitatory inputs onto DA neurons of the VTA. 24 h after cocaine injection the ratio of AMPA- versus NMDA (A/N) -mediated excitatory postsynaptic currents (EPSCs) was significantly increased (Ungless ...
... 3.1. Excitatory synapses A single in vivo cocaine exposure is enough to cause synaptic adaptations at excitatory inputs onto DA neurons of the VTA. 24 h after cocaine injection the ratio of AMPA- versus NMDA (A/N) -mediated excitatory postsynaptic currents (EPSCs) was significantly increased (Ungless ...
identification of cell types in brain slices of the inferior colliculus
... AbstractÐDifferent type neurons in the inferior colliculus may have different functions. Recent intracellular studies of the inferior colliculus suggest that intrinsic electrical properties contribute to discharge patterns, but the intrinsic discharge patterns have not been fully characterized in th ...
... AbstractÐDifferent type neurons in the inferior colliculus may have different functions. Recent intracellular studies of the inferior colliculus suggest that intrinsic electrical properties contribute to discharge patterns, but the intrinsic discharge patterns have not been fully characterized in th ...
Poly(A) Binding Protein Nuclear 1 regulates the
... Pabpn1 knock down interferes with homeostatic plasticity Given the above regulation of both Camk2a and Gria2, we next determined whether Pabpn1 and polyadenylation play a role in homeostatic plasticity. We elicited homeostatic plasticity using a 24 hours treatment of bicuculline a gammaaminobutyric ...
... Pabpn1 knock down interferes with homeostatic plasticity Given the above regulation of both Camk2a and Gria2, we next determined whether Pabpn1 and polyadenylation play a role in homeostatic plasticity. We elicited homeostatic plasticity using a 24 hours treatment of bicuculline a gammaaminobutyric ...
Three Cases of Enduring Memory Impairment after Bilateral Damage
... WH developed severe memory impairment during March 25–30, 1986, at the age of 63. His wife reported that on the evening of March 25, 1986, he appeared tired and withdrawn. Although he seemed strained and looked ashen, he nevertheless went to work the next day. That evening he admitted to his wife th ...
... WH developed severe memory impairment during March 25–30, 1986, at the age of 63. His wife reported that on the evening of March 25, 1986, he appeared tired and withdrawn. Although he seemed strained and looked ashen, he nevertheless went to work the next day. That evening he admitted to his wife th ...
development and plasticity of cortical areas and networks
... examined so far have been shown to regulate sizes of areas: deleting ephrin-A2 and ephrin-A5 affects the targeting of thalamocortical axons to neocortical regions in vivo, as lateral portions of the body map in somatosensory cortex are enlarged and distorted36. Matching of thalamic afferents with co ...
... examined so far have been shown to regulate sizes of areas: deleting ephrin-A2 and ephrin-A5 affects the targeting of thalamocortical axons to neocortical regions in vivo, as lateral portions of the body map in somatosensory cortex are enlarged and distorted36. Matching of thalamic afferents with co ...
Rhythmic Spontaneous Activity in the Piriform Cortex
... Figure 2. Characteristics of the spontaneous rhythmic activity in the piriform network. (A) Autocorrelogram and mean frequency (horizontal line) of multiunit activity in layer III. The inset shows how duration was measured at the point where the mean frequency line crossed the central peak. The 2 d ...
... Figure 2. Characteristics of the spontaneous rhythmic activity in the piriform network. (A) Autocorrelogram and mean frequency (horizontal line) of multiunit activity in layer III. The inset shows how duration was measured at the point where the mean frequency line crossed the central peak. The 2 d ...
development and plasticity of cortical areas and networks
... examined so far have been shown to regulate sizes of areas: deleting ephrin-A2 and ephrin-A5 affects the targeting of thalamocortical axons to neocortical regions in vivo, as lateral portions of the body map in somatosensory cortex are enlarged and distorted36. Matching of thalamic afferents with co ...
... examined so far have been shown to regulate sizes of areas: deleting ephrin-A2 and ephrin-A5 affects the targeting of thalamocortical axons to neocortical regions in vivo, as lateral portions of the body map in somatosensory cortex are enlarged and distorted36. Matching of thalamic afferents with co ...
Cation-Chloride Cotransporters and Neuronal Function
... Ion trafficking across biological membranes is mediated by channels and transporters, and these two types of molecules form the basis of electrical signaling in the nervous system. However, the volume of research on voltage- and ligand-gated channels is orders of magnitude higher than what has been ...
... Ion trafficking across biological membranes is mediated by channels and transporters, and these two types of molecules form the basis of electrical signaling in the nervous system. However, the volume of research on voltage- and ligand-gated channels is orders of magnitude higher than what has been ...
Regulation of Action-Potential Firing in Spiny Neurons of the Rat
... (interaural coordinates AP 12.2, ML 02.0, and DV 7.4) and substantia nigra (coordinates AP 3.6, ML 1.6, and DV 1.6) and fixed in place with dental cement. A flap of bone (from 8.5–12.5 mm anterior to the interaural line and 1.0–4.5 mm lateral to the midline) was removed to expose the dura, which was ...
... (interaural coordinates AP 12.2, ML 02.0, and DV 7.4) and substantia nigra (coordinates AP 3.6, ML 1.6, and DV 1.6) and fixed in place with dental cement. A flap of bone (from 8.5–12.5 mm anterior to the interaural line and 1.0–4.5 mm lateral to the midline) was removed to expose the dura, which was ...
Regulation of Action-Potential Firing in Spiny Neurons of the Rat
... (interaural coordinates AP 12.2, ML 02.0, and DV 7.4) and substantia nigra (coordinates AP 3.6, ML 1.6, and DV 1.6) and fixed in place with dental cement. A flap of bone (from 8.5–12.5 mm anterior to the interaural line and 1.0–4.5 mm lateral to the midline) was removed to expose the dura, which was ...
... (interaural coordinates AP 12.2, ML 02.0, and DV 7.4) and substantia nigra (coordinates AP 3.6, ML 1.6, and DV 1.6) and fixed in place with dental cement. A flap of bone (from 8.5–12.5 mm anterior to the interaural line and 1.0–4.5 mm lateral to the midline) was removed to expose the dura, which was ...
Electroencephalography: Basic Principles, Clinical Applications, and
... (Fig. 2.12A1,3) or with polyphasic (Fig. 2.12A2) configurations. This statement does not merely apply to individual ictal potentials but is also true for prolonged trains of potentials during the convulsion. As Fig. 2.12B shows, paroxysmal depolarizations of pyramidal tract cells may be accompanied ...
... (Fig. 2.12A1,3) or with polyphasic (Fig. 2.12A2) configurations. This statement does not merely apply to individual ictal potentials but is also true for prolonged trains of potentials during the convulsion. As Fig. 2.12B shows, paroxysmal depolarizations of pyramidal tract cells may be accompanied ...
Frontal lobe and cognitive development
... The precise functional role of the connections of the prefrontal cortex is not entirely known, but can be inferred from the functional role of the structures with which it is connected. In general terms, the prefrontal-limbic connections are involved in the control of emotional behavior, whereas the ...
... The precise functional role of the connections of the prefrontal cortex is not entirely known, but can be inferred from the functional role of the structures with which it is connected. In general terms, the prefrontal-limbic connections are involved in the control of emotional behavior, whereas the ...
Grid Cell Mechanisms and Function: Contributions of Michael E. Hasselmo*
... The model of grid cell firing based on persistent firing neurons requires separate populations of neurons showing persistent firing at the same stable baseline frequency that remains constant in the absence of input. Figure 1A shows an example of 20 s of stable persistent firing in a Layer V pyramid ...
... The model of grid cell firing based on persistent firing neurons requires separate populations of neurons showing persistent firing at the same stable baseline frequency that remains constant in the absence of input. Figure 1A shows an example of 20 s of stable persistent firing in a Layer V pyramid ...
Synaptic Plasticity and Connectivity Requirements to
... environments. A task with these features, biconditional discrimination, requires responses to select pairs of stimuli that are opposite to responses to those stimuli in another combination. We investigate the characteristics of synaptic plasticity and network connectivity needed to produce stimulus- ...
... environments. A task with these features, biconditional discrimination, requires responses to select pairs of stimuli that are opposite to responses to those stimuli in another combination. We investigate the characteristics of synaptic plasticity and network connectivity needed to produce stimulus- ...