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Stimulus induced reset of 40-Hz auditory steady-state responses.
Neurol Clin Neurophysiol. 2004 Nov 30; 2004:21.NC

Abstract

Auditory steady-state responses (ASSR) were evoked with 40-Hz amplitude modulated 500-Hz tones. An additional impulse-like noise stimulus (2,000 +/- 500 Hz) with spectrum clearly distinct from the one of the AM sound, induced pronounced perturbations in the ASSR. The effect of the interfering noise was interpreted as (1) reset of the ASSR because of a sudden loss in phase coherence, (2) a decrease in signal power immediately after presentation of the noise impulse, and (3) a modulation of ASSR amplitude and phase resembling the time course of the ASSR onset. The time-course of the ASSR onset was interpreted as reflecting temporal integration over several 100 ms. The reset of the ASSR was discussed as a powerful mechanism, which allows for fast reaction to a short stimulus change that overcomes the disadvantage of the ASSR's long integration time constant.

Authors+Show Affiliations

The Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, ON, Canada. bernhard.ross@ieee.orgNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

16012609

Citation

Ross, B, et al. "Stimulus Induced Reset of 40-Hz Auditory Steady-state Responses." Neurology & Clinical Neurophysiology : NCN, vol. 2004, 2004, p. 21.
Ross B, Herdman AT, Pantev C. Stimulus induced reset of 40-Hz auditory steady-state responses. Neurol Clin Neurophysiol. 2004;2004:21.
Ross, B., Herdman, A. T., & Pantev, C. (2004). Stimulus induced reset of 40-Hz auditory steady-state responses. Neurology & Clinical Neurophysiology : NCN, 2004, 21.
Ross B, Herdman AT, Pantev C. Stimulus Induced Reset of 40-Hz Auditory Steady-state Responses. Neurol Clin Neurophysiol. 2004 Nov 30;2004:21. PubMed PMID: 16012609.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Stimulus induced reset of 40-Hz auditory steady-state responses. AU - Ross,B, AU - Herdman,A T, AU - Pantev,C, Y1 - 2004/11/30/ PY - 2005/7/14/pubmed PY - 2006/4/15/medline PY - 2005/7/14/entrez SP - 21 EP - 21 JF - Neurology & clinical neurophysiology : NCN JO - Neurol Clin Neurophysiol VL - 2004 N2 - Auditory steady-state responses (ASSR) were evoked with 40-Hz amplitude modulated 500-Hz tones. An additional impulse-like noise stimulus (2,000 +/- 500 Hz) with spectrum clearly distinct from the one of the AM sound, induced pronounced perturbations in the ASSR. The effect of the interfering noise was interpreted as (1) reset of the ASSR because of a sudden loss in phase coherence, (2) a decrease in signal power immediately after presentation of the noise impulse, and (3) a modulation of ASSR amplitude and phase resembling the time course of the ASSR onset. The time-course of the ASSR onset was interpreted as reflecting temporal integration over several 100 ms. The reset of the ASSR was discussed as a powerful mechanism, which allows for fast reaction to a short stimulus change that overcomes the disadvantage of the ASSR's long integration time constant. SN - 1526-8748 UR - https://www.unboundmedicine.com/medline/citation/16012609/Stimulus_induced_reset_of_40_Hz_auditory_steady_state_responses_ DB - PRIME DP - Unbound Medicine ER -