Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Human auditory cortical responses to pitch and to pitch strength
AU - Barker, Daphne
AU - Plack, Christopher J.
AU - Hall, Deborah A.
PY - 2011/2/16
Y1 - 2011/2/16
N2 - Pitch is a fundamental auditory sensation, underlying both music and speech perception. This study was designed to explore pitch coding in human auditory cortex by testing whether activity in pitch-responsive regions covaries as a function of pitch salience (pitch strength). A psychophysical paradigm was used to confirm three levels of pitch salience for two different pitch-evoking stimuli. The location and magnitude of the response to these stimuli were measured using functional magnetic resonance imaging. A pitch response was found in planum temporale, close to the posterolateral border of Heschl's gyrus. However, the response was not sensitive to pitch salience. One interpretation is that pitch-sensitive regions are maximally responsive to the presence or absence of pitch and not to pitch salience.
AB - Pitch is a fundamental auditory sensation, underlying both music and speech perception. This study was designed to explore pitch coding in human auditory cortex by testing whether activity in pitch-responsive regions covaries as a function of pitch salience (pitch strength). A psychophysical paradigm was used to confirm three levels of pitch salience for two different pitch-evoking stimuli. The location and magnitude of the response to these stimuli were measured using functional magnetic resonance imaging. A pitch response was found in planum temporale, close to the posterolateral border of Heschl's gyrus. However, the response was not sensitive to pitch salience. One interpretation is that pitch-sensitive regions are maximally responsive to the presence or absence of pitch and not to pitch salience.
KW - jittered pulse train
KW - pitch center
KW - unresolved harmonic complex tone
KW - HUGGINS PITCH
KW - HESCHLS GYRUS
KW - CORTEX
KW - SOUND
KW - REPRESENTATIONS
KW - SITES
KW - BRAIN
KW - NOISE
U2 - 10.1097/WNR.0b013e328342ba30
DO - 10.1097/WNR.0b013e328342ba30
M3 - Journal article
VL - 22
SP - 111
EP - 115
JO - NeuroReport
JF - NeuroReport
SN - 0959-4965
IS - 3
ER -