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Exogenous auditory cues decrease audiovisual integration of simple lights and sounds

Exogenous auditory cues decrease audiovisual integration of simple lights and sounds Both bottom-up attention and multisensory integration are processes that can decrease detection times of simple lights and sounds (Spence, 2010; Stevenson et al. , 2012). In previous studies, the interaction between top-down attention and audiovisual integration has been extensively investigated (for a review see Talsma et al. , 2010). Yet, little attention has been given to the interaction between bottom-up attention and audiovisual integration. We examined the influence of exogenous auditory cues on the integration of lights and sounds in a simple detection task. We presented valid (cue same side as target), invalid (cue opposite side of target), or no cues at random SOAs (175–250 ms) before the presentation of an auditory, visual, or audiovisual target on the left or right side of the screen. As expected, auditory cues decreased response times (RTs) to auditory, visual, and audiovisual targets, compared to the no cue condition, regardless of their validity. RTs to audiovisual targets were faster compared to RTs to auditory targets only in the no cue condition. To investigate whether audiovisual integration was influenced by bottom-up attention, we compared the cumulative density functions (CDF) of audiovisual RTs and the race-model in each cue condition (Ulrich et al. , 2007). We found significant violations of the race-model only in the no cue condition. These results indicate that bottom-up attention facilitates the processing of audiovisual information, but at the same time reduces audiovisual integration. We suggest that bottom-up and top-down forms of attention may influence audiovisual integration in different ways. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Multisensory Research (continuation of Seeing & Perceiving from 2013) Brill

Exogenous auditory cues decrease audiovisual integration of simple lights and sounds

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Publisher
Brill
Copyright
© Koninklijke Brill NV, Leiden, The Netherlands
Subject
Poster Presentation
ISSN
2213-4794
eISSN
2213-4808
DOI
10.1163/22134808-000S0169
Publisher site
See Article on Publisher Site

Abstract

Both bottom-up attention and multisensory integration are processes that can decrease detection times of simple lights and sounds (Spence, 2010; Stevenson et al. , 2012). In previous studies, the interaction between top-down attention and audiovisual integration has been extensively investigated (for a review see Talsma et al. , 2010). Yet, little attention has been given to the interaction between bottom-up attention and audiovisual integration. We examined the influence of exogenous auditory cues on the integration of lights and sounds in a simple detection task. We presented valid (cue same side as target), invalid (cue opposite side of target), or no cues at random SOAs (175–250 ms) before the presentation of an auditory, visual, or audiovisual target on the left or right side of the screen. As expected, auditory cues decreased response times (RTs) to auditory, visual, and audiovisual targets, compared to the no cue condition, regardless of their validity. RTs to audiovisual targets were faster compared to RTs to auditory targets only in the no cue condition. To investigate whether audiovisual integration was influenced by bottom-up attention, we compared the cumulative density functions (CDF) of audiovisual RTs and the race-model in each cue condition (Ulrich et al. , 2007). We found significant violations of the race-model only in the no cue condition. These results indicate that bottom-up attention facilitates the processing of audiovisual information, but at the same time reduces audiovisual integration. We suggest that bottom-up and top-down forms of attention may influence audiovisual integration in different ways.

Journal

Multisensory Research (continuation of Seeing & Perceiving from 2013) – Brill

Published: Jan 1, 2013

Keywords: Attention; multisensory; integration; exogenous cues

References

  • Crossmodal spatial attention
    Spence C.
  • Interactions between the spatial and temporal stimulus factors that influence multisensory integration in human performance
    Stevenson R. A. Krueger Fister J. Barnett Z. P. Nidiffer A. R. Wallace M. T.
  • The multifaceted interplay between attention and multisensory integration
    Talsma D. Senkowski D. Soto-Faraco S. Woldorff M. G.
  • Testing the race model inequality: An algorithm and computer programs
    Ulrich R. Miller J. Schröter H.