TY - JOUR
T1 - Active versus passive listening to auditory streaming stimuli
T2 - A near-infrared spectroscopy study
AU - Remijn, Gerard B.
AU - Kojima, Haruyuki
N1 - Funding Information:
This study was supported by the COE program Innovative Brain Science for Development, Learning and Memory of Kanazawa University and grants from the Ishikawa High-Tech Sensing Cluster (Knowledge Cluster Initiative from the Japanese Ministry of Education, Culture, Sports, Science and Technology). We thank Koichiro Miyaji and Shuichiro Taya for their technical assistance, and two anonymous reviewers for their help with the manuscript.
Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2010/5
Y1 - 2010/5
N2 - We use near-infrared spectroscopy (NIRS) to assess listeners' cortical responses to a 10-s series of pure tones separated in frequency. Listeners are instructed to either judge the rhythm of these "streaming" stimuli (active-response listening) or to listen to the stimuli passively. Experiment 1 shows that active-response listening causes increases in oxygenated hemoglobin (oxy-Hb) in response to all stimuli, generally over the (pre)motor cortices. The oxy-Hb increases are significantly larger over the right hemisphere than over the left for the final 5 s of the stimulus. Hemodynamic levels do not vary with changes in the frequency separation between the tones and corresponding changes in perceived rhythm ("gallop," "streaming," or "ambiguous"). Experiment 2 shows that hemodynamic levels are strongly influenced by listening mode. For the majority of time windows, active-response listening causes significantly larger oxy-Hb increases than passive listening, significantly over the left hemisphere during the stimulus and over both hemispheres after the stimulus. This difference cannot be attributed to physical motor activity and preparation related to button pressing after stimulus end, because this is required in both listening modes.
AB - We use near-infrared spectroscopy (NIRS) to assess listeners' cortical responses to a 10-s series of pure tones separated in frequency. Listeners are instructed to either judge the rhythm of these "streaming" stimuli (active-response listening) or to listen to the stimuli passively. Experiment 1 shows that active-response listening causes increases in oxygenated hemoglobin (oxy-Hb) in response to all stimuli, generally over the (pre)motor cortices. The oxy-Hb increases are significantly larger over the right hemisphere than over the left for the final 5 s of the stimulus. Hemodynamic levels do not vary with changes in the frequency separation between the tones and corresponding changes in perceived rhythm ("gallop," "streaming," or "ambiguous"). Experiment 2 shows that hemodynamic levels are strongly influenced by listening mode. For the majority of time windows, active-response listening causes significantly larger oxy-Hb increases than passive listening, significantly over the left hemisphere during the stimulus and over both hemispheres after the stimulus. This difference cannot be attributed to physical motor activity and preparation related to button pressing after stimulus end, because this is required in both listening modes.
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U2 - 10.1117/1.3431104
DO - 10.1117/1.3431104
M3 - Article
C2 - 20615035
AN - SCOPUS:79958033281
VL - 15
JO - Journal of Biomedical Optics
JF - Journal of Biomedical Optics
SN - 1083-3668
IS - 3
M1 - 037006
ER -