Both attention and prediction are necessary for adaptive neuronal tuning in sensory processing

Yi Fang Hsu*, Jarmo A. Hämäläinen, Florian Waszak

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

40 引文 斯高帕斯(Scopus)

摘要

The brain as a proactive system processes sensory information under the top-down influence of attention and prediction. However, the relation between attention and prediction remains undetermined given the conflation of these two mechanisms in the literature. To evaluate whether attention and prediction are dependent of each other, and if so, how these two top-down mechanisms may interact in sensory processing, we orthogonally manipulated attention and prediction in a target detection task. Participants were instructed to pay attention to one of two interleaved stimulus streams of predictable/unpredictable tone frequency. We found that attention and prediction interacted on the amplitude of the N1 ERP component. The N1 amplitude in the attended/predictable condition was larger than that in any of the other conditions. Dipole source localization analysis showed that the effect came from the activation in bilateral auditory areas. No significant effect was found in the P2 time window. Our results suggest that attention and prediction are dependent of each other. While attention might determine the overall cortical responsiveness to stimuli when prediction is involved, prediction might provide an anchor for the modulation of the synaptic input strengths which needs to be operated on the basis of attention.

原文英語
文章編號152
期刊Frontiers in Human Neuroscience
8
發行號MAR
DOIs
出版狀態已發佈 - 2014 三月 26

ASJC Scopus subject areas

  • 神經心理學與生理心理學
  • 神經內科
  • 精神病學和心理健康
  • 生物精神病學
  • 行為神經科學

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