Activity Correlations between Direction-Selective Retinal Ganglion Cells Synergistically Enhance Motion Decoding from Complex Visual Scenes
Activity Correlations between Direction-Selective Retinal Ganglion Cells Synergistically Enhance Motion Decoding from Complex Visual Scenes
复制标题
方向选择性视网膜神经节细胞之间的活动相关性协同增强复杂视觉场景的运动解码
DOI:
10.1016/j.neuron.2019.01.003
复制
发表时间:
2019
期刊:
影响因子:
16.2
通讯作者:
Gollisch T
中科院分区:
文献类型:
--
作者:
Kuhn NK;Gollisch T
Neurons in sensory systems are often tuned to particular stimulus features. During complex naturalistic stimulation, however, multiple features may simultaneously affect neuronal responses, which complicates the readout of individual features. To investigate feature representation under complex stimulation, we studied how direction-selective ganglion cells in salamander retina respond to texture motion where direction, velocity, and spatial pattern inside the receptive field continuously change. We found that the cells preserve their direction preference under this stimulation, yet their direction encoding becomes ambiguous due to simultaneous activation by luminance changes. The ambiguities can be resolved by considering populations of direction-selective cells with different preferred directions. This gives rise to synergistic motion decoding, yielding more information from the population than the summed information from single-cell responses. Strong positive response correlations between cells with different preferred directions amplify this synergy. Our results show how correlated population activity can enhance feature extraction in complex visual scenes.
登录
查看更多内容
DOI:
10.1523/jneurosci.1971-16.2016
发表时间:
2016
期刊:
The Journal of Neuroscience
影响因子:
--
作者:
Kühn N;Gollisch T
通讯作者:
Gollisch T
影响因子:
2.9
作者:
Brody, CD
通讯作者:
Brody, CD
影响因子:
2.5
作者:
Fiscella, Michele;Franke, Felix;Hierlemann, Andreas
通讯作者:
Hierlemann, Andreas
影响因子:
9.8
作者:
Xaq Pitkow;H. Sompolinsky;M. Meister
通讯作者:
M. Meister
影响因子:
1.9
作者:
Jonathan Wolfe;L. Palmer
通讯作者:
L. Palmer