Spike-field coherence analysis of mnemonic signal between associative-memory-related subregions in macaque inferotemporal cortex.

同时记录了猴子在执行视觉记忆任务时36个脑区的单单元活动和颞下皮层TE区的局部场电位，并分析了这两个脑区的助记信息。频域相干性分析表明，在延迟期间β频率存在相干性活动。这种连贯活动对线索刺激是有选择性的。36区与TE区局部场电位的因果关系分析表明，在延迟期间，β频率助记信号从36区流向TE区。

I recorded simultaneously the single unit activity from are 36 and the local field potential from area TE of monkey inferior temporal cortex when the monkey performed visual memory task and then analyzed the mnemonic information between these areas. Coherence analysis in a frequency domain reveals that there was a coherent activity in beta frequency during the delay period. This beta coherent activity was selective to the cue stimulus. Causality analysis of the local field potential between area 36 and area TE showed that, during the delay period, mnemonic signal in beta frequency flows from area 36 to area TE.