Slip-Based Coding of Local Shape and Texture in Mouse S1.
Slip-Based Coding of Local Shape and Texture in Mouse S1.
复制标题
鼠标S1中局部形状和纹理的基于滑动的编码。
DOI:
10.1016/j.neuron.2017.12.021
复制
发表时间:
2018-01-17
期刊:
影响因子:
16.2
通讯作者:
Feldman DE
中科院分区:
文献类型:
--
作者:
Isett BR;Feasel SH;Lane MA;Feldman DE
Tactile objects have both local geometry (shape) and broader macroscopic texture, but how these different spatial scales are simultaneously encoded during active touch is unknown. In the whisker system, we tested for a shared code based on localized whisker micromotions (stick-slips) and slip-evoked spikes. We trained mice to discriminate smooth from rough surfaces, including ridged gratings and sandpaper. Whisker slips locked to ridges, and evoked temporally precise spikes (<10 ms jitter) in somatosensory cortex (S1) that could resolve ridges with ~1 mm accuracy. Slip-sensitive neurons also encoded touch and texture. On rough surfaces, both slip-evoked spikes and an additional non-slip signal elevated mean firing rate, allowing accurate rough-smooth texture decoding from population firing rate. 18% of neurons were selective among rough surfaces; thus, slips elicit spatially and temporally precise spiking in S1 that simultaneously encodes local shape (ridges) and is integrated into a macroscopic firing rate code for roughness. This study tests how local shape and texture are encoded during active whisker sensation. Local shape elicits stick-slip whisker motions and temporally precise spikes in somatosensory cortex. Spikes track local features and contribute to a firing rate code for roughness.
登录
查看更多内容
影响因子:
7.7
作者:
Hires SA;Pammer L;Svoboda K;Golomb D
通讯作者:
Golomb D
DOI:
10.1098/rsif.2014.0698
发表时间:
2014-11-06
期刊:
Journal of the Royal Society, Interface
影响因子:
--
作者:
Delhaye B;Lefèvre P;Thonnard JL
通讯作者:
Thonnard JL
影响因子:
3.7
作者:
Drew, Patrick J.;Feldman, Daniel E.
通讯作者:
Feldman, Daniel E.
影响因子:
3
作者:
Fee, MS;Mitra, PP;Kleinfeld, D
通讯作者:
Kleinfeld, D
影响因子:
25
作者:
Chen, Jerry L.;Margolis, David J.;Helmchen, Fritjof
通讯作者:
Helmchen, Fritjof