Neural Sampling by Irregular Gating Inhibition of Spiking Neurons and Attractor Networks [PDF]
A long tradition in theoretical neuroscience casts sensory processing in the brain as the process of inferring the maximally consistent interpretations of imperfect sensory input.
Indiveri, Giacomo, Muller, Lorenz K.
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Neural and Neurochemical Mechanisms of Pain Inhibition [PDF]
Recent studies which suggest the existence of an endogenous neural substrate of pain inhibition are reviewed. Electrical stimulation of some areas of the medial brain stem in laboratory rats has produced a dramatic degree of analgesia. Such stimulation-produced analgesia is partially blocked by an opiate antagonist drug.
J C, Liebeskind, J E, Sherman, T, Cannon
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Dynamic neural field with local inhibition [PDF]
A lateral-inhibition type neural field model with restricted connections is presented here and represents an experimental extension of the continuum neural field theory (CNFT) by suppression of the global inhibition. A modified CNFT equation is introduced and allows for a locally defined inhibition to spatially expand within the network and results in ...
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Decorrelation by Recurrent Inhibition in Heterogeneous Neural Circuits [PDF]
The activity of neurons is correlated, and this correlation affects how the brain processes information. We study the neural circuit mechanisms of correlations by analyzing a network model characterized by strong and heterogeneous interactions: excitatory input drives the fluctuations of neural activity, which are counterbalanced by inhibitory ...
Alberto Bernacchia, Xiao-Jing Wang
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Impaired response inhibition and excess cortical thickness as candidate endophenotypes for trichotillomania. [PDF]
Trichotillomania is characterized by repetitive pulling out of one's own hair. Impaired response inhibition has been identified in patients with trichotillomania, along with gray matter density changes in distributed neural regions including frontal ...
Chamberlain, Samuel R. +4 more
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Neural Correlates of Attentional Modulation of Prepulse Inhibition [PDF]
Prepulse inhibition (PPI) refers to the suppression of the startle reflex when the intense startling stimulus is shortly (20–500 ms) preceded by a weak non-startling stimulus (prepulse). Although the main neural correlates of PPI lie in the brainstem, previous research has revealed that PPI can be top-down modulated by attention.
Ming Lei, Yu Ding, Qingxin Meng
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Socioeconomic status and neural processing of a go/no-go task in preschoolers: an assessment of the P3b [PDF]
While it is well established that lower socioeconomic status (SES) is associated with poorer executive functioning (EF), how SES relates to the neural processing of EF in childhood remains largely unexplored.
Finch, Kayla +2 more
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Rhythmic inhibition allows neural networks to search for maximally consistent states [PDF]
Gamma-band rhythmic inhibition is a ubiquitous phenomenon in neural circuits yet its computational role still remains elusive. We show that a model of Gamma-band rhythmic inhibition allows networks of coupled cortical circuit motifs to search for network
Giacomo Indiveri +8 more
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Push-Pull Control of Motor Output [PDF]
Inhibition usually decreases input–output excitability of neurons. If, however, inhibition is coupled to excitation in a push–pull fashion, where inhibition decreases as excitation increases, neuron excitability can be increased. Although the presence of
Heckman, C J +3 more
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The neural system for the inhibition of startle [PDF]
In the rat, lesion of the lateral tegmentum but not of the raphee eliminated inhibition of acoustic startle by prior acoustic and visual stimuli with lead times of 50 msec. Since lesion of the lateral tegmentum did not interfere with latency reduction (when the same prior stimuli had lead times of 4 msec), it is concluded that lesion of the lateral ...
Donald S. Leitner +2 more
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