A dual role of prestimulus spontaneous neural activity in visual object recognition
A dual role of prestimulus spontaneous neural activity in visual object recognition
复制标题
刺激前自发神经活动在视觉物体识别中的双重作用
DOI:
10.1038/s41467-019-11877-4
复制
发表时间:
2019
影响因子:
16.6
通讯作者:
He, Biyu J.
中科院分区:
文献类型:
--
作者:
Podvalny, Ella;Flounders, Matthew W.;King, Leana E.;Holroyd, Tom;He, Biyu J.
Vision relies on both specific knowledge of visual attributes, such as object categories, and general brain states, such as those reflecting arousal. We hypothesized that these phenomena independently influence recognition of forthcoming stimuli through distinct processes reflected in spontaneous neural activity. Here, we recorded magnetoencephalographic (MEG) activity in participants (N= 24) who viewed images of objects presented at recognition threshold. Using multivariate analysis applied to sensor-level activity patterns recorded before stimulus presentation, we identified two neural processes influencing subsequent subjective recognition: a general process, which disregards stimulus category and correlates with pupil size, and a specific process, which facilitates category-specific recognition. The two processes are doubly-dissociable: the general process correlates with changes in criterion but not in sensitivity, whereas the specific process correlates with changes in sensitivity but not in criterion. Our findings reveal distinct mechanisms of how spontaneous neural activity influences perception and provide a framework to integrate previous findings.
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影响因子:
5.7
作者:
Ringach, Dario L.
通讯作者:
Ringach, Dario L.
DOI:
10.1073/pnas.0607716103
发表时间:
2006-12-05
影响因子:
11.1
作者:
Lau, Hakwan C.;Passingham, Richard E.
通讯作者:
Passingham, Richard E.
影响因子:
4.3
作者:
Baria AT;Maniscalco B;He BJ
通讯作者:
He BJ
影响因子:
5.7
作者:
Broday-Dvir, Rotem;Grossman, Shany;Malach, Rafael
通讯作者:
Malach, Rafael
影响因子:
3.7
作者:
Meytal Wilf;Francesca Strappini;Tal Golan;Avital Hahamy;M. Harel;R. Malach
通讯作者:
R. Malach