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Poster

Multisensory Self-Motion Oddball Paradigm Evokes a P3 Response

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons83842

Whelan R, Butler,  J
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons83839

Foxe J, Bülthoff,  HH
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Zitation

Nolan, H., Whelan R, Butler, J., Foxe J, Bülthoff, H., & Reilly, R. (2010). Multisensory Self-Motion Oddball Paradigm Evokes a P3 Response. Poster presented at 11th International Multisensory Research Forum (IMRF 2010), Liverpool, UK.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-BFD8-8
Zusammenfassung
Introduction: The sensation of motion is a product of the integration of information from multiple sensory modalities; vestibular, visual and proprioceptive information all have strong influences on the perception of self-motion. Here we present an electroencephalogram (EEG) study which demonstrates a P3 response to a self-motion oddball paradigm. Methods: Subjects were placed in a Maxcue Stewart motion platform. Auditory and visual cues were minimised using white noise and an enclosed environment. They were translated linearly 7cm using a 1s long sinusoidal acceleration profile at a 45° angle forwards and left or right, with a probability of 0.8 / 0.2, balanced over runs (oddball paradigm). Subjects responded to the infrequent direction by pressing a button. During the task, EEG data were recorded using a Biosemi ActiveTwo 128-channel EEG system. The recordings were processed offline to remove artifacts. Results / Conclusion: Statistical parametric mapping shows the frequent and infrequent event-related potentials (ERPs) to differ significantly from 500ms - 950ms. Topographic analysis shows a typical P3 topography. Response-epoched ERPs show a peak of width approx 300ms. Conclusion: These results indicate that a P3-like response is generated by the motion oddball paradigm.