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Intermodal selective attention: evidence for processing in tonotopic auditory fields.
Psychophysiology. 1993 May; 30(3):287-95.P

Abstract

Auditory event-related brain potentials (ERPs) were recorded for 250- and 4,000-Hz tone bursts in an intermodal selective attention task. Tonotopic changes were evident in the scalp distribution of the rising phase of the auditory N1 (mean peak latency 116 ms); the N1 was more frontally distributed following the 4,000-Hz than following the 250-Hz tone bursts, and it included a contralateral P90 component that was absent following 250-Hz tones. ERPs related to intermodal selective attention were isolated as negative and positive auditory difference waves (Ndas and Pdas). Neither the Nda nor the Pda showed changes in distribution with tone frequency, but both showed Ear x Frequency changes in distribution. ERPs for deviant tones included mismatch negativities (MMNs) and, in attend auditory conditions, N2b and P3 components. These components did not change in scalp distribution with tone frequency. One possible explanation is that tonotopic displacements of ERP distributions on the scalp surface depend on angular displacements in generator fields on gyral convexities. The results are consistent with the possibility that auditory processing radiates outward with increasing latency from tonotopic fields on Heschl's gyri to more gyrus-free regions of the planun temporale and anterior superior temporal plane.

Authors+Show Affiliations

Department of Neurology, University of California-Davis.No affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

8497558

Citation

Woods, D L., et al. "Intermodal Selective Attention: Evidence for Processing in Tonotopic Auditory Fields." Psychophysiology, vol. 30, no. 3, 1993, pp. 287-95.
Woods DL, Alho K, Algazi A. Intermodal selective attention: evidence for processing in tonotopic auditory fields. Psychophysiology. 1993;30(3):287-95.
Woods, D. L., Alho, K., & Algazi, A. (1993). Intermodal selective attention: evidence for processing in tonotopic auditory fields. Psychophysiology, 30(3), 287-95.
Woods DL, Alho K, Algazi A. Intermodal Selective Attention: Evidence for Processing in Tonotopic Auditory Fields. Psychophysiology. 1993;30(3):287-95. PubMed PMID: 8497558.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Intermodal selective attention: evidence for processing in tonotopic auditory fields. AU - Woods,D L, AU - Alho,K, AU - Algazi,A, PY - 1993/5/1/pubmed PY - 1993/5/1/medline PY - 1993/5/1/entrez SP - 287 EP - 95 JF - Psychophysiology JO - Psychophysiology VL - 30 IS - 3 N2 - Auditory event-related brain potentials (ERPs) were recorded for 250- and 4,000-Hz tone bursts in an intermodal selective attention task. Tonotopic changes were evident in the scalp distribution of the rising phase of the auditory N1 (mean peak latency 116 ms); the N1 was more frontally distributed following the 4,000-Hz than following the 250-Hz tone bursts, and it included a contralateral P90 component that was absent following 250-Hz tones. ERPs related to intermodal selective attention were isolated as negative and positive auditory difference waves (Ndas and Pdas). Neither the Nda nor the Pda showed changes in distribution with tone frequency, but both showed Ear x Frequency changes in distribution. ERPs for deviant tones included mismatch negativities (MMNs) and, in attend auditory conditions, N2b and P3 components. These components did not change in scalp distribution with tone frequency. One possible explanation is that tonotopic displacements of ERP distributions on the scalp surface depend on angular displacements in generator fields on gyral convexities. The results are consistent with the possibility that auditory processing radiates outward with increasing latency from tonotopic fields on Heschl's gyri to more gyrus-free regions of the planun temporale and anterior superior temporal plane. SN - 0048-5772 UR - https://www.unboundmedicine.com/medline/citation/8497558/Intermodal_selective_attention:_evidence_for_processing_in_tonotopic_auditory_fields_ L2 - https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0048-5772&date=1993&volume=30&issue=3&spage=287 DB - PRIME DP - Unbound Medicine ER -