Intermodal attention effects of the Auditory steady-state response and the Event-related potential evoked by artificial and natural sounds
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1
Institut of Psychology I, University of Leipzig , Germany
The aim of the present study was to simultaneously measure and compare intermodal attention effects in event-related brain potentials (ERPs) and auditory steady-state responses (ASSRs). For this purpose, 40-Hz amplitude modulated sounds (sinus tones or complex noise sounds) and a visual fixation cross were presented concurrently. By means of target detection tasks either on the sounds or on the fixation cross, participants’ attention was directed to the respective modality. Attended sounds elicited a negative difference (Nd) in the ERP relative to unattended sounds. Nd was divided into an early and a late part as often observed for intramodal attention. We found a 40-Hz ASSR for amplitude modulated sinus tones, as well as for complex noise sounds. Moreover, attention to the amplitude modulated sinus tones led to a significant enhancement of the ASSR. These results illustrate, once more, the inconsistency in finding attention effects on the auditory ASSR, yet at the same time show, that such modulations are possible. The present data suggest that ASSRs could provide a useful tool for the investigation of the neural dynamics of intermodal attentional processes.
Conference:
MMN 09
Fifth Conference on Mismatch Negativity (MMN) and its Clinical and Scientific Applications, Budapest, Hungary, 4 Apr - 7 Apr, 2009.
Presentation Type:
Poster Presentation
Topic:
Poster Presentations
Citation:
Saupe
K,
Widmann
A,
Bendixen
A,
Müller
MM and
Schroger
E
(2009). Intermodal attention effects of the Auditory steady-state response and the Event-related potential evoked by artificial and natural sounds.
Conference Abstract:
MMN 09
Fifth Conference on Mismatch Negativity (MMN) and its Clinical and Scientific Applications.
doi: 10.3389/conf.neuro.09.2009.05.111
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Received:
26 Mar 2009;
Published Online:
26 Mar 2009.
*
Correspondence:
Katja Saupe, Institut of Psychology I, University of Leipzig, Leipzig, Germany, saupe@uni-leipzig.de