清醒兔下丘腦音素頻率編碼：生理與模型反應

// Formant-frequency encoding in the inferior colliculus of awake rabbit: Physiological and model responses

本研究探討清醒兔子下丘腦（IC）神經元對不同共振峰頻寬合成元音的反應｜結果顯示神經元對較窄頻寬反應率較高，且不僅受能量訊號影響｜模型結合抑制與興奮機制，準確解釋神經元在各頻寬與刺激條件下的反應，支持IC神經元透過神經波動模式編碼元音聲音訊息。

// This study examined how neurons in the inferior colliculus (IC) of awake rabbits respond to synthetic vowel sounds with varied formant bandwidths, testing a hypothesis that increased bandwidth reduces neural fluctuation contrast and speech discrimination. Using two stimulus paradigms, results showed IC neuron firing rates were higher for narrower bandwidths and not solely driven by energy cues. Neural response patterns correlated with sensitivity to frequency sweeps and supported the idea that IC neurons encode vowels via neural-fluctuation profiles. A model including inhibition and excitation accurately explained neuron responses across different bandwidths and stimulus conditions.

Published 2026年8月26日