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Auditory cortex responses to the transition from monophonic to pseudo-stereo sound.
Neurol Clin Neurophysiol. 2004 Nov 30; 2004:18.NC

Abstract

Human cortical responses to the change in spaciousness of sound were recorded with the method of magnetoencephalography (MEG). The phases of dichotically presented 500-Hz tones were shifted so that the sound was perceived as originating either from a point-like source centered in the head or from separated sources in space. The phase shift was embedded in 40-Hz amplitude modulation. Thus, the phase shift could not be detected from a monaural signal. The transition between 'mono' and 'pseudo-stereo' quality of the sound elicited a P1-N1-P2 response similar to the onset response as well as a decrement in the steady-state response. The responses were discussed as reflecting binaural processing in the central auditory system.

Authors+Show Affiliations

Ross B
The Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, ON, Canada. bernhard.ross@ieee.org
Herdman AT
No affiliation info available
Wollbrink A
No affiliation info available
Pantev C
No affiliation info available

MeSH

Acoustic StimulationAdultAuditory CortexAuditory PerceptionEvoked Potentials, AuditoryFemaleHumansMagnetoencephalographyMaleMiddle Aged

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16012692

Citation

Ross, B, et al. "Auditory Cortex Responses to the Transition From Monophonic to Pseudo-stereo Sound." Neurology & Clinical Neurophysiology : NCN, vol. 2004, 2004, p. 18.
Ross B, Herdman AT, Wollbrink A, et al. Auditory cortex responses to the transition from monophonic to pseudo-stereo sound. Neurol Clin Neurophysiol. 2004;2004:18.
Ross, B., Herdman, A. T., Wollbrink, A., & Pantev, C. (2004). Auditory cortex responses to the transition from monophonic to pseudo-stereo sound. Neurology & Clinical Neurophysiology : NCN, 2004, 18.
Ross B, et al. Auditory Cortex Responses to the Transition From Monophonic to Pseudo-stereo Sound. Neurol Clin Neurophysiol. 2004 Nov 30;2004:18. PubMed PMID: 16012692.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Auditory cortex responses to the transition from monophonic to pseudo-stereo sound. AU - Ross,B, AU - Herdman,At T, AU - Wollbrink,A, AU - Pantev,C, Y1 - 2004/11/30/ PY - 2005/7/14/pubmed PY - 2006/4/15/medline PY - 2005/7/14/entrez SP - 18 EP - 18 JF - Neurology & clinical neurophysiology : NCN JO - Neurol Clin Neurophysiol VL - 2004 N2 - Human cortical responses to the change in spaciousness of sound were recorded with the method of magnetoencephalography (MEG). The phases of dichotically presented 500-Hz tones were shifted so that the sound was perceived as originating either from a point-like source centered in the head or from separated sources in space. The phase shift was embedded in 40-Hz amplitude modulation. Thus, the phase shift could not be detected from a monaural signal. The transition between 'mono' and 'pseudo-stereo' quality of the sound elicited a P1-N1-P2 response similar to the onset response as well as a decrement in the steady-state response. The responses were discussed as reflecting binaural processing in the central auditory system. SN - 1526-8748 UR - https://www.unboundmedicine.com/medline/citation/16012692/Auditory_cortex_responses_to_the_transition_from_monophonic_to_pseudo_stereo_sound_ DB - PRIME DP - Unbound Medicine ER -