Get access

Attenuation of auditory ERPs to action-sound coincidences is not explained by voluntary allocation of attention

Authors

  • János Horváth

    Corresponding author
    • Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
    Search for more papers by this author

  • This research was supported by the European Community's Seventh Framework Programme (under grant agreement PERG04-GA-2008-239393) and the János Bolyai Research Scholarship of the Hungarian Academy of Sciences. I thank Judit Roschéné Farkas and Annamária Tóth for collecting the data, and two anonymous reviewers for constructive comments on the manuscript.

Address correspondence to: János Horváth, Institute of Cognitive Neuroscience and Psychology, RCNS, Hungarian Academy of Sciences, P.O.B. 398, Szondi u 83/85, H-1394 Budapest, Hungary. E-mail: horvath.janos@ttk.mta.hu

Abstract

The event-related potential (ERP) correlates of sound detection are attenuated when eliciting sounds coincide with our own actions. The role of attention in this effect was investigated in two experiments by presenting tones separated by random intervals. In the homogeneous condition of Experiments 1 and 2, the same tone was repeated, whereas in the mixed condition of Experiment 1, tones with five different frequencies were presented. Participants performed a time-interval production task by marking intervals with keypresses in Experiment 1, and tried to produce keypress-tone coincidences in Experiment 2. Although the auditory ERPs were attenuated for coincidences, no modulation by the multiplicity of tone frequencies in Experiment 1, or by the task-relevancy of tones and coincidences in Experiment 2, was found. This suggests that coincidence-related ERP attenuation cannot be fully explained by voluntary attentional mechanisms.

Get access to the full text of this article

Ancillary