A Neural Signature of Divisive Normalization at the Level of Multisensory Integration in Primate Cortex.
A Neural Signature of Divisive Normalization at the Level of Multisensory Integration in Primate Cortex.
复制标题
在灵长类皮层中多感官整合水平上的分裂归一化的神经特征。
DOI:
10.1016/j.neuron.2017.06.043
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发表时间:
2017-07-19
期刊:
影响因子:
16.2
通讯作者:
DeAngelis GC
中科院分区:
文献类型:
--
作者:
Ohshiro T;Angelaki DE;DeAngelis GC
Studies of multisensory integration by single neurons have traditionally emphasized empirical principles that describe nonlinear interactions between inputs from two sensory modalities. We previously proposed that many of these empirical principles could be explained by a divisive normalization mechanism operating in brain regions where multisensory integration occurs. This normalization model makes a critical diagnostic prediction: a non-preferred sensory input from one modality, which activates the neuron on its own, should suppress the response to a preferred input from another modality. We tested this prediction by recording from neurons in macaque area MSTd that integrate visual and vestibular cues regarding self-motion. We show that many MSTd neurons exhibit the diagnostic form of cross-modal suppression, whereas unisensory neurons in area MT do not. The normalization model also fits population responses better than a model based on subtractive inhibition. These findings provide strong support for a divisive normalization mechanism in multisensory integration.
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影响因子:
2.5
作者:
Cavanaugh, JR;Bair, W;Movshon, JA
通讯作者:
Movshon, JA
DOI:
10.1523/jneurosci.1266-11.2011
发表时间:
2011-08-10
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Chen A;DeAngelis GC;Angelaki DE
通讯作者:
Angelaki DE
影响因子:
3.5
作者:
Cuppini, Cristiano;Ursino, Mauro;Stein, Barry E.
通讯作者:
Stein, Barry E.
影响因子:
5.3
作者:
Diehl, Maria M.;Romanski, Lizabeth M.
通讯作者:
Romanski, Lizabeth M.
影响因子:
3.7
作者:
Britten, KH;van Wezel, RJA
通讯作者:
van Wezel, RJA