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The effects of between-source discriminability on attended and unattended auditory ERPs.
Psychophysiology. 1993 Mar; 30(2):205-20.P

Abstract

Event-related potentials (ERPs) for tone pips from attended and unattended sources, which varied on discriminability, were compared with ERPs for the same stimuli recorded during performance of a visual task. This comparison revealed that Nd, the negative shift of attended relative to unattended ERPs, consisted of three components: a negativity in the attended ERP from 100 to 270 ms, a positivity in the unattended ERP from 170 ms to the end of the epoch, and a second negativity in the attended ERP from 270 to 700 ms. In general, the later onset of early Nd with more difficult between-source discriminations could be attributed to the later onset of the positivity in unattended ERPs. A number of hypotheses were advanced for the origin of the unattended positivity: the suppression of the later of two negative components in the 100-220-ms range, an enhanced P2 component, an endogenous positivity, or the resolution of a protracted negativity elicited by preceding attended stimuli.

Authors+Show Affiliations

School of Behavioural Sciences, Macquarie University, Sydney, New South Wales, Australia.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

8434083

Citation

Michie, P T., et al. "The Effects of Between-source Discriminability On Attended and Unattended Auditory ERPs." Psychophysiology, vol. 30, no. 2, 1993, pp. 205-20.
Michie PT, Solowij N, Crawford JM, et al. The effects of between-source discriminability on attended and unattended auditory ERPs. Psychophysiology. 1993;30(2):205-20.
Michie, P. T., Solowij, N., Crawford, J. M., & Glue, L. C. (1993). The effects of between-source discriminability on attended and unattended auditory ERPs. Psychophysiology, 30(2), 205-20.
Michie PT, et al. The Effects of Between-source Discriminability On Attended and Unattended Auditory ERPs. Psychophysiology. 1993;30(2):205-20. PubMed PMID: 8434083.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The effects of between-source discriminability on attended and unattended auditory ERPs. AU - Michie,P T, AU - Solowij,N, AU - Crawford,J M, AU - Glue,L C, PY - 1993/3/1/pubmed PY - 1993/3/1/medline PY - 1993/3/1/entrez SP - 205 EP - 20 JF - Psychophysiology JO - Psychophysiology VL - 30 IS - 2 N2 - Event-related potentials (ERPs) for tone pips from attended and unattended sources, which varied on discriminability, were compared with ERPs for the same stimuli recorded during performance of a visual task. This comparison revealed that Nd, the negative shift of attended relative to unattended ERPs, consisted of three components: a negativity in the attended ERP from 100 to 270 ms, a positivity in the unattended ERP from 170 ms to the end of the epoch, and a second negativity in the attended ERP from 270 to 700 ms. In general, the later onset of early Nd with more difficult between-source discriminations could be attributed to the later onset of the positivity in unattended ERPs. A number of hypotheses were advanced for the origin of the unattended positivity: the suppression of the later of two negative components in the 100-220-ms range, an enhanced P2 component, an endogenous positivity, or the resolution of a protracted negativity elicited by preceding attended stimuli. SN - 0048-5772 UR - https://www.unboundmedicine.com/medline/citation/8434083/The_effects_of_between_source_discriminability_on_attended_and_unattended_auditory_ERPs_ L2 - https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0048-5772&date=1993&volume=30&issue=2&spage=205 DB - PRIME DP - Unbound Medicine ER -