睴bjective〕 To observe the expression of binaural hearing at high intensive click on the auditory brainstem responses (ABR) in cats,so as to explore the effects of cross-hearing produced by 95dB click on the checked ear and the interference produced by steady white noise(SWN) and the click on binaural ears.

In dichotic listening,left-and right-handers undertook the category classify task on concrete nouns(animals,objects,body parts) of Chinese single characters to examine the cerebral functional lateralization and integration for semantic processing of auditory words in different handers.

In dichotic listening, a right ear advantage reflects left hemisphere specialization, and a left ear advantage reflects right hemisphere specialization.