Efficient Pitch Localizer

Authors: Sam Norman-HaignereNancy KanwisherJosh McDermott
Updated: Wed 11 December 2013
Source: http://web.mit.edu/svnh/www/Resolvability/Efficient_Pitch_Localizer.html
Type: WAV files
Languages: N/A
Keywords: pitchauditionharmonicstonotopy
Open Access: yes
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Publications: Norman-Haignere, S., Kanwisher, N., McDermott, J. (2013). Cortical Pitch Regions in Humans Respond Primarily to Resolved Harmonics and Are Located in Specific Tonotopic Regions of Anterior Auditory Cortex. The Journal of Neuroscience. 33(50): 19451-19469. DOI:10.1523/JNEUROSCI.2880-13.2013
Citation: Norman-Haignere, S., Kanwisher, N., McDermott, J. (2013). Massachusetts Institute of Technology. http://web.mit.edu/svnh/www/Resolvability/Efficient_Pitch_Localizer.html
Summary:

The study focuses on a set of “pitch-sensitive” regions in human auditory cortex that respond approximately twice as strongly to sounds with a pitch compared with a non-pitch control such as gaussian noise. Although many studies have investigated neural responses to pitch, the large majority of neuroimaging studies have used stimuli with so-called “unresolved harmonics”, which produce a weak pitch percept. Here, we show that pitch-sensitive regions throughout auditory cortex respond mainly to resolved harmonics, the dominant cue for human pitch perception. We also show that when tested with resolved harmonics, pitch-sensitive regions exhibit a distinctive anatomical profile relative to tonotopic landmarks.