When perceiving speech, music, and environmental sounds, listeners map continuous variation across acoustic dimensions onto discrete categories. This categorization process is a vital component of our ability to navigate the auditory world, but little is known about its underlying neural and cognitive mechanisms. Here we propose to use newly developed EEG techniques, including frequency-tagging of acoustic dimensions and multi-dimensional temporal response function analysis, to test the hypothesis that during auditory categorization attention is directed towards auditory dimensions that are highly diagnostic of category membership.
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