The redundant target effect is affected by modality switch costs

Matthias Gondan; K. Lange; F. Rösler; B. Röder

The redundant target effect is affected by modality switch costs

Matthias Gondan, K. Lange, F. Rösler, B. Röder

51 Citationer (Scopus)

393 Downloads (Pure)

Abstract

When participants have to respond to stimuli of two modalities, faster reaction times are observed for simultaneous, bimodal events than for unimodal events (the redundant target effect [RTE]). This finding has been interpreted as reflecting processing gains for bimodal relative to unimodal stimuli, possibly due to multisensory interactions. In random stimulus sequences, reaction times are slower when the stimulus is preceded by a stimulus of a different modality (modality switch effect [MSE]). Simple reaction time redundant target experiments with auditory-visual, visual-tactile, and auditory-tactile stimulus combinations were run to determine whether the RTE may be partly explained by MSEs because bimodal stimuli do not require a modality switch. In all three modality pairings, significant MSEs and RTEs were observed. However, the RTE was still significant after reaction times were corrected for the MSE, supporting the hypothesis that coactivation occurs independently of modality switch costs.

Originalsprog	Engelsk
Tidsskrift	Psychonomic Bulletin & Review
Vol/bind	11
Udgave nummer	2
Sider (fra-til)	307-313
Antal sider	7
ISSN	1069-9384
Status	Udgivet - 1 apr. 2004

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T1 - The redundant target effect is affected by modality switch costs

AU - Gondan, Matthias

AU - Lange, K.

AU - Rösler, F.

AU - Röder, B.

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AB - When participants have to respond to stimuli of two modalities, faster reaction times are observed for simultaneous, bimodal events than for unimodal events (the redundant target effect [RTE]). This finding has been interpreted as reflecting processing gains for bimodal relative to unimodal stimuli, possibly due to multisensory interactions. In random stimulus sequences, reaction times are slower when the stimulus is preceded by a stimulus of a different modality (modality switch effect [MSE]). Simple reaction time redundant target experiments with auditory-visual, visual-tactile, and auditory-tactile stimulus combinations were run to determine whether the RTE may be partly explained by MSEs because bimodal stimuli do not require a modality switch. In all three modality pairings, significant MSEs and RTEs were observed. However, the RTE was still significant after reaction times were corrected for the MSE, supporting the hypothesis that coactivation occurs independently of modality switch costs.

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The redundant target effect is affected by modality switch costs

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