Competitive Dynamics in Cortical Responses to Visual Stimuli
... currents I1 ⫽ 2.5 to E1 and I2 ⫽ 2.5 to E2 and applied white-noise inputs to the inhibitory pools. We then examined the impact on network behavior of varying the strength of the inhibitory parameter Jei, which represented the strength of inhibition exerted by inhibitory neurons on their excitatory t ...
... currents I1 ⫽ 2.5 to E1 and I2 ⫽ 2.5 to E2 and applied white-noise inputs to the inhibitory pools. We then examined the impact on network behavior of varying the strength of the inhibitory parameter Jei, which represented the strength of inhibition exerted by inhibitory neurons on their excitatory t ...
Changes in Prefrontal Neuronal Activity after
... strategies in the task, increasing efficiency (Klingberg 2010). Even an unequivocal change in brain activation after learning to perform a working memory task cannot resolve the nature of underlying neuronal changes. In principle, increased activation could be the result of a larger cortical populati ...
... strategies in the task, increasing efficiency (Klingberg 2010). Even an unequivocal change in brain activation after learning to perform a working memory task cannot resolve the nature of underlying neuronal changes. In principle, increased activation could be the result of a larger cortical populati ...
paper - Rice University
... these similarities may stem from comparing two very broad and ill-defined concepts, rather than from a genuine conceptual overlap. Thus, the remainder of this chapter is devoted to comparing the properties of syntactic complexity of relative clauses and executive function, in an attempt to systemati ...
... these similarities may stem from comparing two very broad and ill-defined concepts, rather than from a genuine conceptual overlap. Thus, the remainder of this chapter is devoted to comparing the properties of syntactic complexity of relative clauses and executive function, in an attempt to systemati ...
BRAIN DYNAMICS AT MULTIPLE SCALES: CAN ONE RECONCILE
... been shown to exhibit chaotic persistence regarding parameter changes [Albers et al., 2006], a property that makes chaotic dynamics more common than exceptional [Sprott, 2008]. From a computational point of view, chaotic behavior or nearly chaotic regime (edge of chaos) can be optimal for informatio ...
... been shown to exhibit chaotic persistence regarding parameter changes [Albers et al., 2006], a property that makes chaotic dynamics more common than exceptional [Sprott, 2008]. From a computational point of view, chaotic behavior or nearly chaotic regime (edge of chaos) can be optimal for informatio ...
BCM Theory
... Unlike our initial expectation, which envisioned some weighted contributions from both scales, we did not see any significant contribution of the short time scale in learned cerebellar timing (Supplementary Figure S1). See text for further explanations. Note 2. Normal behavior of the cerebellar netw ...
... Unlike our initial expectation, which envisioned some weighted contributions from both scales, we did not see any significant contribution of the short time scale in learned cerebellar timing (Supplementary Figure S1). See text for further explanations. Note 2. Normal behavior of the cerebellar netw ...
trans - RUF International
... consciousness possible, but the lack of language makes it difficult for them to make use of this potential. Parrots have the potential for expressing a language but not the brain size needed for consciousness. If several neurons are part of the loop, the loop delay can easily become large enough to ...
... consciousness possible, but the lack of language makes it difficult for them to make use of this potential. Parrots have the potential for expressing a language but not the brain size needed for consciousness. If several neurons are part of the loop, the loop delay can easily become large enough to ...
Behavioral and Neural Properties of Social Reinforcement Learning
... Reinforcement learning model. We used a simple reinforcement learning algorithm (Rescorla–Wagner) to model the trial-by-trial variance in participants’ reaction times (Rescorla and Wagner, 1972). The Rescorla– Wagner rule probes learning through a prediction error (PE) signal ␦, which is the differe ...
... Reinforcement learning model. We used a simple reinforcement learning algorithm (Rescorla–Wagner) to model the trial-by-trial variance in participants’ reaction times (Rescorla and Wagner, 1972). The Rescorla– Wagner rule probes learning through a prediction error (PE) signal ␦, which is the differe ...
trans - RUF International
... consciousness possible, but the lack of language makes it difficult for them to make use of this potential. Parrots have the potential for expressing a language but not the brain size needed for consciousness. If several neurons are part of the loop, the loop delay can easily become large enough to ...
... consciousness possible, but the lack of language makes it difficult for them to make use of this potential. Parrots have the potential for expressing a language but not the brain size needed for consciousness. If several neurons are part of the loop, the loop delay can easily become large enough to ...
The Neurophysiological Basis of Learning and Memory in Advanced
... the MSFL inputs onto the amacrine cells, which in turn innervate the large efferent neurons.32 The VL system of cuttlefish and octopus thus appears to be organized as a simple feed-forward fanout fan-in type of network. This type of network architecture is frequently found among biological and artif ...
... the MSFL inputs onto the amacrine cells, which in turn innervate the large efferent neurons.32 The VL system of cuttlefish and octopus thus appears to be organized as a simple feed-forward fanout fan-in type of network. This type of network architecture is frequently found among biological and artif ...
Neural network activation during a stopsignal task discriminates
... Cocaine dependence is defined by a loss of inhibitory control over drug-use behaviors, mirrored by measurable impairments in laboratory tasks of inhibitory control. The current study tested the hypothesis that deficits in multiple subprocesses of behavioral control are associated with reliable neura ...
... Cocaine dependence is defined by a loss of inhibitory control over drug-use behaviors, mirrored by measurable impairments in laboratory tasks of inhibitory control. The current study tested the hypothesis that deficits in multiple subprocesses of behavioral control are associated with reliable neura ...
PDF
... and reinforcement learning stands to benefit both lines of research, making (at least) two important contributions. First, although behavioral predictions are extremely useful for the purpose of testing the relevance of RL to animal and human decision-making, neural data provide an important source ...
... and reinforcement learning stands to benefit both lines of research, making (at least) two important contributions. First, although behavioral predictions are extremely useful for the purpose of testing the relevance of RL to animal and human decision-making, neural data provide an important source ...
Predictive Coding: A Possible Explanation of Filling
... connection. In response to this top-down information, lower area sends a residual error signal to the higher area, by feed-forward connection, to correct the next prediction. This idea is based on the anatomical architecture of the visual system which is hierarchically organized and reciprocally con ...
... connection. In response to this top-down information, lower area sends a residual error signal to the higher area, by feed-forward connection, to correct the next prediction. This idea is based on the anatomical architecture of the visual system which is hierarchically organized and reciprocally con ...
... This function is graphically shown in Figure 9, forneuronal networks of, up to, 2000 neurons. A neuronal network of 2000 neurons would require the production and normalisation of 2,001,000 pairwise cross correlations. Current recording hardware for multi-dimensional spike trains can already routinel ...
A Theory of Cerebral Cortex - Temporal Dynamics of Learning Center
... mathematical models of feature attractors and knowledge links are not discussed. The mathematics of confabulation is so simple that it is included. The basic claim of the theory is that the cerebral cortex and thalamus implement thousands of lexicons, each containing thousands of symbols. These cons ...
... mathematical models of feature attractors and knowledge links are not discussed. The mathematics of confabulation is so simple that it is included. The basic claim of the theory is that the cerebral cortex and thalamus implement thousands of lexicons, each containing thousands of symbols. These cons ...
the brain`s concepts: the role of the sensory
... functioning rules are totally independent from those governing the input/output modules. The propositional picture of the mind conveyed by early cognitivism is that of a functional system whose processes can be described in terms of manipulations of abstract symbols according to a set of formal synt ...
... functioning rules are totally independent from those governing the input/output modules. The propositional picture of the mind conveyed by early cognitivism is that of a functional system whose processes can be described in terms of manipulations of abstract symbols according to a set of formal synt ...
the brain`s concepts: the role of the sensory
... functioning rules are totally independent from those governing the input/output modules. The propositional picture of the mind conveyed by early cognitivism is that of a functional system whose processes can be described in terms of manipulations of abstract symbols according to a set of formal synt ...
... functioning rules are totally independent from those governing the input/output modules. The propositional picture of the mind conveyed by early cognitivism is that of a functional system whose processes can be described in terms of manipulations of abstract symbols according to a set of formal synt ...
Human Brain Networks: Spiking Neuron Models
... electrochemical potential gradient across the cell membrane. All cells of the human body maintain an electrochemical potential gradient between the inside of the cell and the surrounding milieu. Neurons have the capacity of excitability. If stimulated beyond a threshold, then the neuron will “fire” ...
... electrochemical potential gradient across the cell membrane. All cells of the human body maintain an electrochemical potential gradient between the inside of the cell and the surrounding milieu. Neurons have the capacity of excitability. If stimulated beyond a threshold, then the neuron will “fire” ...
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... surface of the skull (2 in each parietal bone and 1 in each frontal bone) to provide structural support for the head cap. The 2 middle screws had attached leads to serve as a reference wire and a grounding wire. A craniotomy and durotomy were performed to expose the cortex in the region of primary a ...
... surface of the skull (2 in each parietal bone and 1 in each frontal bone) to provide structural support for the head cap. The 2 middle screws had attached leads to serve as a reference wire and a grounding wire. A craniotomy and durotomy were performed to expose the cortex in the region of primary a ...
Knockdown of the Dyslexia-Associated Gene
... surface of the skull (2 in each parietal bone and 1 in each frontal bone) to provide structural support for the head cap. The 2 middle screws had attached leads to serve as a reference wire and a grounding wire. A craniotomy and durotomy were performed to expose the cortex in the region of primary a ...
... surface of the skull (2 in each parietal bone and 1 in each frontal bone) to provide structural support for the head cap. The 2 middle screws had attached leads to serve as a reference wire and a grounding wire. A craniotomy and durotomy were performed to expose the cortex in the region of primary a ...
Knockdown of the Dyslexia-Associated Gene
... surface of the skull (2 in each parietal bone and 1 in each frontal bone) to provide structural support for the head cap. The 2 middle screws had attached leads to serve as a reference wire and a grounding wire. A craniotomy and durotomy were performed to expose the cortex in the region of primary a ...
... surface of the skull (2 in each parietal bone and 1 in each frontal bone) to provide structural support for the head cap. The 2 middle screws had attached leads to serve as a reference wire and a grounding wire. A craniotomy and durotomy were performed to expose the cortex in the region of primary a ...