نتایج جستجو برای: neural plasticity

تعداد نتایج: 352889  

Journal: :NeuroImage 2000
R A Poldrack

The neural plasticity associated with learning and development is increasingly being studied using functional neuroimaging methods such as positron emission tomography (PET) and functional magnetic resonance imaging (fMRI). In this paper I outline a set of conceptual and methodological issues that are particularly relevant for the study of neural plasticity. A number of confounds, related to ch...

2014
Gregg W. Crabtree Joseph A. Gogos

Synaptic plasticity alters the strength of information flow between presynaptic and postsynaptic neurons and thus modifies the likelihood that action potentials in a presynaptic neuron will lead to an action potential in a postsynaptic neuron. As such, synaptic plasticity and pathological changes in synaptic plasticity impact the synaptic computation which controls the information flow through ...

Journal: :EMBO reports 2012
Kristin Scott Marc Hammarlund

The Cold Spring Harbour Asia conference on 'Assembly, Plasticity, Dysfunction and Repair of Neural Circuits' took place in Suzhou, China, in October 2011. Developmental, cell, molecular and systems neuroscientists convened to discuss the establishment, function and plasticity of neural circuits in diverse organisms.

2017
Meng-Qi Zhang Rui Li Yi-Qun Wang Zhi-Li Huang

Depression, which is characterized by a pervasive and persistent low mood and anhedonia, greatly impacts patients, their families, and society. The associated and recurring sleep disturbances further reduce patient's quality of life. However, therapeutic sleep deprivation has been regarded as a rapid and robust antidepressant treatment for several decades, which suggests a complicated role of s...

2016
Christopher R. Holdgraf Wendy de Heer Brian Pasley Jochem Rieger Nathan Crone Jack J. Lin Robert T. Knight Frédéric E. Theunissen

Experience shapes our perception of the world on a moment-to-moment basis. This robust perceptual effect of experience parallels a change in the neural representation of stimulus features, though the nature of this representation and its plasticity are not well-understood. Spectrotemporal receptive field (STRF) mapping describes the neural response to acoustic features, and has been used to stu...

2016
Naoyuki Takeuchi Shin-Ichi Izumi Jun Ota Jun Ueda

Copyright © 2016 Naoyuki Takeuchi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Various physical/mental disorders lead to changes in body representation in the brain that could significantly impact the daily life and func...

Journal: :Neuron 2009
David Sussillo L. F. Abbott

Neural circuits display complex activity patterns both spontaneously and when responding to a stimulus or generating a motor output. How are these two forms of activity related? We develop a procedure called FORCE learning for modifying synaptic strengths either external to or within a model neural network to change chaotic spontaneous activity into a wide variety of desired activity patterns. ...

Journal: :Current topics in behavioral neurosciences 2013
Yan Gu Stephen Janoschka Shaoyu Ge

Plasticity in the adult brain enables lifelong learning. The fundamental mechanism of adult neural plasticity is activity-dependent reorganization of pre-existing structure, in contrast to the widespread cellular proliferation and migration that occurs during development. Whereas adult hippocampal dentate gyrus continuously generates cohorts of neurons, and newborn neurons integrate into the ex...

Journal: :Neuron 2008
Sen Cheng Loren M. Frank

The acquisition of new memories for places and events requires synaptic plasticity in the hippocampus, and plasticity depends on temporal coordination among neurons. Spatial activity in the hippocampus is relatively disorganized during the initial exploration of a novel environment, however, and it is unclear how neural activity during the initial stages of learning drives synaptic plasticity. ...

2014
Francesco Galluppi Xavier Lagorce Evangelos Stromatias Michael Pfeiffer Luis A. Plana Steve B. Furber Ryad B. Benosman

Many of the precise biological mechanisms of synaptic plasticity remain elusive, but simulations of neural networks have greatly enhanced our understanding of how specific global functions arise from the massively parallel computation of neurons and local Hebbian or spike-timing dependent plasticity rules. For simulating large portions of neural tissue, this has created an increasingly strong n...

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