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Right hemispheric laterality of human 40 Hz auditory steady-state responses.
Cereb Cortex. 2005 Dec; 15(12):2029-39.CC

Abstract

Hemispheric asymmetries during auditory sensory processing were examined using whole-head magnetoencephalographic recordings of auditory evoked responses to monaurally and binaurally presented amplitude-modulated sounds. Laterality indices were calculated for the transient onset responses (P1m and N1m), the transient gamma-band response, the sustained field (SF) and the 40 Hz auditory steady-state response (ASSR). All response components showed laterality toward the hemisphere contralateral to the stimulated ear. In addition, the SF and ASSR showed right hemispheric (RH) dominance. Thus, laterality of sustained response components (SF and ASSR) was distinct from that of transient responses. ASSR and SF are sensitive to stimulus periodicity. Consequently, ASSR and SF likely reflect periodic stimulus attributes and might be relevant for pitch processing based on temporal stimulus regularities. In summary, the results of the present studies demonstrate that asymmetric organization in the cerebral auditory cortex is already established on the level of sensory processing.

Authors+Show Affiliations

The Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, Canada, and Institute for Biomagnetism and Biosignalanalysis, Münster University Hospital, Germany. bernhard.ross@ieee.orgNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

15772375

Citation

Ross, B, et al. "Right Hemispheric Laterality of Human 40 Hz Auditory Steady-state Responses." Cerebral Cortex (New York, N.Y. : 1991), vol. 15, no. 12, 2005, pp. 2029-39.
Ross B, Herdman AT, Pantev C. Right hemispheric laterality of human 40 Hz auditory steady-state responses. Cereb Cortex. 2005;15(12):2029-39.
Ross, B., Herdman, A. T., & Pantev, C. (2005). Right hemispheric laterality of human 40 Hz auditory steady-state responses. Cerebral Cortex (New York, N.Y. : 1991), 15(12), 2029-39.
Ross B, Herdman AT, Pantev C. Right Hemispheric Laterality of Human 40 Hz Auditory Steady-state Responses. Cereb Cortex. 2005;15(12):2029-39. PubMed PMID: 15772375.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Right hemispheric laterality of human 40 Hz auditory steady-state responses. AU - Ross,B, AU - Herdman,A T, AU - Pantev,C, Y1 - 2005/03/16/ PY - 2005/3/18/pubmed PY - 2006/1/13/medline PY - 2005/3/18/entrez SP - 2029 EP - 39 JF - Cerebral cortex (New York, N.Y. : 1991) JO - Cereb Cortex VL - 15 IS - 12 N2 - Hemispheric asymmetries during auditory sensory processing were examined using whole-head magnetoencephalographic recordings of auditory evoked responses to monaurally and binaurally presented amplitude-modulated sounds. Laterality indices were calculated for the transient onset responses (P1m and N1m), the transient gamma-band response, the sustained field (SF) and the 40 Hz auditory steady-state response (ASSR). All response components showed laterality toward the hemisphere contralateral to the stimulated ear. In addition, the SF and ASSR showed right hemispheric (RH) dominance. Thus, laterality of sustained response components (SF and ASSR) was distinct from that of transient responses. ASSR and SF are sensitive to stimulus periodicity. Consequently, ASSR and SF likely reflect periodic stimulus attributes and might be relevant for pitch processing based on temporal stimulus regularities. In summary, the results of the present studies demonstrate that asymmetric organization in the cerebral auditory cortex is already established on the level of sensory processing. SN - 1047-3211 UR - https://www.unboundmedicine.com/medline/citation/15772375/Right_hemispheric_laterality_of_human_40_Hz_auditory_steady_state_responses_ L2 - https://academic.oup.com/cercor/article-lookup/doi/10.1093/cercor/bhi078 DB - PRIME DP - Unbound Medicine ER -