A synaptic learning rule for exploiting nonlinear dendritic computation.
A synaptic learning rule for exploiting nonlinear dendritic computation.
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利用非线性树状运算的突触学习法则。
DOI:
10.1016/j.neuron.2021.09.044
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发表时间:
2021-12-15
期刊:
影响因子:
16.2
通讯作者:
Häusser M
中科院分区:
文献类型:
--
作者:
Bicknell BA;Häusser M
Information processing in the brain depends on the integration of synaptic input distributed throughout neuronal dendrites. Dendritic integration is a hierarchical process, proposed to be equivalent to integration by a multilayer network, potentially endowing single neurons with substantial computational power. However, whether neurons can learn to harness dendritic properties to realize this potential is unknown. Here, we develop a learning rule from dendritic cable theory and use it to investigate the processing capacity of a detailed pyramidal neuron model. We show that computations using spatial or temporal features of synaptic input patterns can be learned, and even synergistically combined, to solve a canonical nonlinear feature-binding problem. The voltage dependence of the learning rule drives coactive synapses to engage dendritic nonlinearities, whereas spike-timing dependence shapes the time course of subthreshold potentials. Dendritic input-output relationships can therefore be flexibly tuned through synaptic plasticity, allowing optimal implementation of nonlinear functions by single neurons. A learning rule derived from cable theory is used in biophysical simulations Pyramidal cell I/O functions can be optimized for computation by synaptic plasticity Active and passive dendritic mechanisms enhance input pattern discrimination Single neurons can learn network-level computations simply by tuning synaptic weights Bicknell and Häusser develop a theoretical approach for investigating single-neuron computation and learning. By deriving a plasticity rule that optimally adjusts the strengths of interacting synapses to control somatic spiking, they show that neurons can learn to harness the biophysical properties of their dendrites to perform nonlinear computations.
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影响因子:
64.8
作者:
Harris CR;Millman KJ;van der Walt SJ;Gommers R;Virtanen P;Cournapeau D;Wieser E;Taylor J;Berg S;Smith NJ;Kern R;Picus M;Hoyer S;van Kerkwijk MH;Brett M;Haldane A;Del Río JF;Wiebe M;Peterson P;Gérard-Marchant P;Sheppard K;Reddy T;Weckesser W;Abbasi H;Gohlke C;Oliphant TE
通讯作者:
Oliphant TE
影响因子:
16.6
作者:
Bono J;Clopath C
通讯作者:
Clopath C
DOI:
10.1126/science.1189664
发表时间:
2010-09-24
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Branco T;Clark BA;Häusser M
通讯作者:
Häusser M
影响因子:
16.2
作者:
Gidon, Albert;Segev, Idan
通讯作者:
Segev, Idan
影响因子:
25
作者:
Archie, KA;Mel, BW
通讯作者:
Mel, BW