【摘 要】
：
In humans,perceived spatial separation of target sound from masker improves the target-sound recognition,and emotional attention mediated by the amygdala al
【机 构】
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Department of Psychology, Speech and Hearing Research Center, National Key Laboratory on Machine Per
【出 处】
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中国神经科学学会第四次会员代表大会暨第七届全国学术会议(The 7th Biennial Meeting and the
论文部分内容阅读
In humans,perceived spatial separation of target sound from masker improves the target-sound recognition,and emotional attention mediated by the amygdala also improves target recognition against irrelevant stimuli.In rats,the lateral nucleus of the amygdala (LA) receives inputs from auditory structures and mediates the fear-conditioning-induced enhancement of responses to sounds in the auditory thalamus and cortex.This study investigated whether binaural integration in anesthetized rats enhances emotional-call-induced frequency-following responses (FFRs) recorded in the LA as well as in the inferior colliculus (IC).FFRs are sustained potentials that preserve low-frequency information of stimulus waveforms.Either a section of a rats emotional call (with three harmonic frequency components of 2100,4200,and 6300 Hz) in response to tail grasping or a three-tone harmonic (with the frequency components of 700,2100,and 3500 Hz) was used as the signal presented binaurally when a noise masker was also presented binaurally.
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