Should spikes be treated with equal weightings in the generation of spectro-temporal receptive fields?

T. R. Chang, Tzai-Wen Chiu, P. C. Chung, Paul W.F. Poon*

*此作品的通信作者

研究成果: Article同行評審

6 引文 斯高帕斯(Scopus)

摘要

Knowledge on the trigger features of central auditory neurons is important in the understanding of speech processing. Spectro-temporal receptive fields (STRFs) obtained using random stimuli and spike-triggered averaging allow visualization of trigger features which often appear blurry in the time-versus-frequency plot. For a clearer visualization we have previously developed a dejittering algorithm to sharpen trigger features in the STRF of FM-sensitive cells. Here we extended this algorithm to segregate spikes, based on their dejitter values, into two groups: normal and outlying, and to construct their STRF separately. We found that while the STRF of the normal jitter group resembled full trigger feature in the original STRF, those of the outlying jitter group resembled a different or partial trigger feature. This algorithm allowed the extraction of other weaker trigger features. Due to the presence of different trigger features in a given cell, we proposed that in the generation of STRF, the evoked spikes should not be treated indiscriminately with equal weightings.

原文English
頁(從 - 到)215-222
頁數8
期刊Journal of Physiology Paris
104
發行號3-4
DOIs
出版狀態Published - 5月 2010

指紋

深入研究「Should spikes be treated with equal weightings in the generation of spectro-temporal receptive fields?」主題。共同形成了獨特的指紋。

引用此