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492
Simulations suggest information processing roles for the diverse currents in hippocampal neurons
- Neural Information Processing Systems, pages 82--94. American Institute of Physics
, 1987
"... A computer model of the hippocampal pyramidal cell (HPC) is described which integrates data from a variety of sources in order to develop a con-sistent description for this cell type. The model presently includes descrip-tions of eleven non-linear somatic currents of the HPC, and the electrotonic st ..."
Abstract
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Cited by 2 (1 self)
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structure of the neuron is modelled with a soma/short-cable approximation. Model simulations qualitatively or quantitatively reproduce a wide range of somatic electrical behavior i ~ HPCs, and demonstrate possible roles for the various currents in information processing. 1 The Computational Properties
A critical role for the right fronto-insular cortex in switching between central-executive and default-mode networks.
- Proc Natl Acad Sci USA
, 2008
"... Cognitively demanding tasks that evoke activation in the brain's central-executive network (CEN) have been consistently shown to evoke decreased activation (deactivation) in the default-mode network (DMN). The neural mechanisms underlying this switch between activation and deactivation of larg ..."
Abstract
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Cited by 178 (1 self)
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;'the function of the VENs may be to provide a rapid relay to other parts of the brain of a simple signal derived from information processed within FI and ACC.'' (34). We propose that the VENs may, therefore, constitute the neuronal basis of control signals generated by the FIC and ACC in our study
Behavioral theories and the neurophysiology of reward,
- Annu. Rev. Psychol.
, 2006
"... ■ Abstract The functions of rewards are based primarily on their effects on behavior and are less directly governed by the physics and chemistry of input events as in sensory systems. Therefore, the investigation of neural mechanisms underlying reward functions requires behavioral theories that can ..."
Abstract
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Cited by 187 (0 self)
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, without attempting to provide a complete account of all the studies done. We focus on the activity of single neurons studied by neurophysiological techniques in behaving animals, in particular monkeys, and emphasize the formative role of behavioral theories, such as animal learning theory
Self-determination and persistence in a real-life setting: Toward a motivational model of high school dropout.
- Journal of Personality and Social Psychology,
, 1997
"... The purpose of this study was to propose and test a motivational model of high school dropout. The model posits that teachers, parents, and the school administration's behaviors toward students influence students' perceptions of competence and autonomy. The less autonomy supportive the so ..."
Abstract
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Cited by 183 (19 self)
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Lanahan, 1991;BeardenetaL, 1989; A second implication is that the social context plays a fundamental role in the dropout process. Much theorizing and research has focused almost exclusively on the personal determinants of dropping out of high school {see Finally, results revealed that parents' influence
Role of an A-type K + conductance in the back-propagation of action potentials in the dendrites of hippocampal pyramidal neurons.
- J Comput Neurosci
, 1999
"... Abstract. Action potentials elicited in the axon actively back-propagate into the dendritic tree. During this process their amplitudes can be modulated by internal and external factors. We used a compartmental model of a hippocampal CA1 pyramidal neuron to illustrate how this modulation could depen ..."
Abstract
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Cited by 54 (4 self)
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Abstract. Action potentials elicited in the axon actively back-propagate into the dendritic tree. During this process their amplitudes can be modulated by internal and external factors. We used a compartmental model of a hippocampal CA1 pyramidal neuron to illustrate how this modulation could
Neuronal activity in the hippocampus during delayed non-match to sample performance in rats: evidence for hippocampal processing in recognition memory
- Hippocampus
, 1992
"... ABSTRACT Neuronal activity in the CAI of rats was explored with regard to functional correlates of performance in an odor-guided continuous delayed non-match to sample task. Although different CAI cells fired in association with each identifiable trial event, these analyses focused on cells that fi ..."
Abstract
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Cited by 46 (2 self)
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to recognition memory by processing comparisons between current information and representations of previous stimuli stored in parahippocampal and neocortical structures.
Potassium Currents in Developing Neurons
"... ABSTRACT: In Xenopus spinal neurons, delayed rectifier type voltage-dependent potassium currents (I Kv ) are developmentally regulated. These currents play a pivotal role in maturation of the action potential from a long-duration calcium-dependent impulse to a brief sodium-dependent one. Although s ..."
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ABSTRACT: In Xenopus spinal neurons, delayed rectifier type voltage-dependent potassium currents (I Kv ) are developmentally regulated. These currents play a pivotal role in maturation of the action potential from a long-duration calcium-dependent impulse to a brief sodium-dependent one. Although
The role of hippocampal subregions in detecting spatial novelty
- Behavioral Neuroscience
, 2005
"... Previous literature suggests that the hippocampus subserves processes associated with the encoding of novel information. To investigate the role of different subregions of the hippocampus, the authors made neurotoxic lesions in different subregions of the dorsal hippocampus (i.e., CA1, dentate gyrus ..."
Abstract
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Cited by 33 (6 self)
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Previous literature suggests that the hippocampus subserves processes associated with the encoding of novel information. To investigate the role of different subregions of the hippocampus, the authors made neurotoxic lesions in different subregions of the dorsal hippocampus (i.e., CA1, dentate
Simulations of Gaussian Processes and Neuronal Modeling
, 2004
"... The research work outlined in the present note highlights the essential role played by the simulation procedures implemented by us on CINECA supercomputers to complement the mathematical investigations carried within our group over the past several years. The ultimate target of our research is the u ..."
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is the understanding of certain crucial features of the information processing and transmission by single neurons embedded in complex networks. More specifically, here we provide a bird’s eye look of some analytical, numerical and simulation results on the asymptotic behavior of first passage time densities
Materials for an exploratory theory of the network society.
- The British Journal of Sociology
, 2000
"... ABSTRACT This article aims at proposing some elements for a grounded theor y of the network society. The network society is the social structure characteristic of the Information Age, as tentatively identi ed by empirical, cross-cultural investigation. It permeates most societies in the world, in v ..."
Abstract
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Cited by 122 (0 self)
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current processes of social transformation. SOCIAL STRUCTURE AND SOCIAL MORPHOLOGY: FROM NETWORKS TO INFORMATION NETWORKS A network is a set of interconnected nodes. A node is the point where the curve intersects itself. Networks are very old forms of social organization. But they have taken on a new life
Results 1 - 10
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492
