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An Analogue Electronic Model of Ventral Cochlear Nucleus Neurons

by Andr Van Schaik, Eric Fragnire, Eric Vittoz - Proc. Fifth Int. Conf. on Microelectronics for Neural Networks and Fuzzy Systems, IEEE Computer Society Press, Los Alamitos , 1996
"... This paper proposes a simple analogue electronic spiking neuron circuit, which can be used to create hardware models of biological neural systems. In spite of its simplicity, the circuit is able to simulate a variety of different neuron types. Measurements of the neuron model in various settings are ..."
Abstract - Cited by 8 (4 self) - Add to MetaCart
are compared with the physiological response of certain neuron types in the Ventral Cochlear Nucleus, i.e., part of the first relay station in the brainstem of the auditory pathway. A good analogy between the response of the circuit and the different neurons has been obtained. 1: Introduction In recent years

Serotonin Differentially Regulates Short- and Long-Term Prediction of Rewards in the Ventral and Dorsal Striatum

by unknown authors
"... Background. The ability to select an action by considering both delays and amount of reward outcome is critical for maximizing long-term benefits. Although previous animal experiments on impulsivity have suggested a role of serotonin in behaviors requiring prediction of delayed rewards, the underlyi ..."
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precursor of serotonin. A model-based analysis revealed that the activity of the ventral part of the striatum was correlated with reward prediction at shorter time scales, and this correlated activity was stronger at low serotonin levels. By contrast, the activity of the dorsal part of the striatum

Hoxb2 and hoxb4 act together to specify ventral body wall formation

by Nancy R. Manley, Jeffery R. Barrow, Tianshu Zhang, Mario R. Capecchi - Dev. Biol , 2001
"... Three different alleles of the Hoxb4 locus were generated by gene targeting in mice. Two alleles contain insertions of a selectable marker in the first exon in either orientation, and, in the third, the selectable marker was removed, resulting in premature termination of the protein. Presence and or ..."
Abstract - Cited by 3 (1 self) - Add to MetaCart
11.5, before secondary body wall formation. Prior to this defect, both Alx3 and Alx4 were specifically down regulated in the most ventral part of the primary body wall in Hoxb4 PolII mutants. Hoxb4 loxp mutants in which the neo gene has been removed did not have body wall or sternum defects

Human Left Ventral Premotor Cortex Mediates Matching of Hand Posture to Object Use

by Guy Vingerhoets, Jo Nys, Elisabeth V, Pieter V , 2013
"... Visuomotor transformations for grasping have been associated with a fronto-parietal network in the monkey brain. The human homologue of the parietal monkey region (AIP) has been identified as the anterior part of the intraparietal sulcus (aIPS), whereas the putative human equivalent of the monkey fr ..."
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frontal region (F5) is located in the ventral part of the premotor cortex (vPMC). Results from animal studies suggest that monkey F5 is involved in the selection of appropriate hand postures relative to the constraints of the task. In humans, the functional roles of aIPS and vPMC appear to be more complex

D E V E

by unknown authors
"... During the development of the avian embryo, the paraxial mesoderm gives rise to segmental epithelial spheres called somites. The ventral part of the somites subsequently becomes mesenchymal to form the sclerotome, which gives rise to the axial skeleton (Christ et al., ..."
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During the development of the avian embryo, the paraxial mesoderm gives rise to segmental epithelial spheres called somites. The ventral part of the somites subsequently becomes mesenchymal to form the sclerotome, which gives rise to the axial skeleton (Christ et al.,

D E V E

by unknown authors
"... During the development of the avian embryo, the paraxial mesoderm gives rise to segmental epithelial spheres called somites. The ventral part of the somites subsequently becomes mesenchymal to form the sclerotome, which gives rise to the axial skeleton (Christ et al., ..."
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During the development of the avian embryo, the paraxial mesoderm gives rise to segmental epithelial spheres called somites. The ventral part of the somites subsequently becomes mesenchymal to form the sclerotome, which gives rise to the axial skeleton (Christ et al.,

Changes in emotion after circumscribed surgical lesions of the orbitofrontal and cingulate cortices

by J. Hornak, C. E. Polkey, et al. - BRAIN 126:1691–712 , 2003
"... To analyse the functions of different parts of the prefrontal cortex in emotion, patients with different prefrontal surgical excisions were compared on four measures of emotion: voice and face emotional expression identification, social behaviour, and the subjective experience of emotion. Some patie ..."
Abstract - Cited by 62 (11 self) - Add to MetaCart
deficits in voice expression identification, and the group did not have significant changes in social behaviour or in their subjective emotional state. Patients with unilateral lesions of the antero-ventral part of the anterior cingulate cortex (ACC) and/or medial Brodmann area (BA) 9 were, in some cases

Physiological Correlates of Comodulation Masking Release in the Mammalian Ventral Cochlear Nucleus

by Daniel Pressnitzer, Ray Meddis, Roel Delahaye, Ian M. Winter
"... Comodulation masking release (CMR) enhances the detection of signals embedded in wideband, amplitude-modulated maskers. At least part of the CMR is attributable to acrossfrequency processing, however, the relative contribution of different stages in the auditory system to across-frequency processing ..."
Abstract - Cited by 9 (3 self) - Add to MetaCart
Comodulation masking release (CMR) enhances the detection of signals embedded in wideband, amplitude-modulated maskers. At least part of the CMR is attributable to acrossfrequency processing, however, the relative contribution of different stages in the auditory system to across

After-currents, after-potentials, excitability, and ventral root electrotonus in spinal motoneurons

by P. C. Lloyd - Downloaded from jp.physoc.org at PENN STATE UNIV on April 14, 2008 EGTA ANDMOTONEURONAL AFTER-POTENTIALS LORENTE DE N6 , 1951
"... One may postulate that each part of a motoneuron following impulse conduction passes through a recovery process one manifestation of which is a fluctuation in membrane potential. Without specifying at the moment precisely what fraction of the sum total of electrical change associated with impulse co ..."
Abstract - Cited by 9 (0 self) - Add to MetaCart
One may postulate that each part of a motoneuron following impulse conduction passes through a recovery process one manifestation of which is a fluctuation in membrane potential. Without specifying at the moment precisely what fraction of the sum total of electrical change associated with impulse

Representation and integration of auditory and visual stimuli in the primate ventral lateral prefrontal cortex

by Lizabeth M. Romanski - Cereb. Cortex , 2007
"... Through the influence of Goldman-Rakic, much research has been focused on the role of the dorsolateral prefrontal cortex in spatial working memory, decision making, and saccade generation, whereas functions of other parts of the frontal lobe including the ventrolateral prefrontal cortex (VLPFC) are ..."
Abstract - Cited by 9 (0 self) - Add to MetaCart
Through the influence of Goldman-Rakic, much research has been focused on the role of the dorsolateral prefrontal cortex in spatial working memory, decision making, and saccade generation, whereas functions of other parts of the frontal lobe including the ventrolateral prefrontal cortex (VLPFC
Results 11 - 20 of 747