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The interaural correlation (IAC) is a measure of the similarity of the acoustic waveforms presented to left and right ears.When the two waveforms are correlated,the value of IAC is 1; the 0 IAC means the two waveforms are uncorrelated.Perceptually,decreasing levels of IAC results in an increased spatial width of a sound image that may underlie the difficulty in precisely localizing the sound source.The investigation of the neural mechanisms that are sensitive to the IAC is informative in the study of auditory scene analysis and extraction of objects from background.However it is unclear which stages of the auditory pathway involving the IAC computation.The present study recorded both psychoacoustical and cortical auditory evoked potential (CAEP) response to investigate whether there are cortical different responses to IAC of broadband noises and the correlation between the behavioral and cortical response.