Beauchamp:McGurk CI Stimuli

Example Stimuli from Magnotti & Beauchamp, 2017

Try watching these videos with your eyes open vs. closed and with the volume high vs. low.

For many people, what they "hear" changes when they perceive the McGurk stimulus with audition only, vision only, and their combination.

McGurk stimulus

{{#widget:YouTube|id=HqD49mcej8k}}

Auditory ba + Visual ga Although incongruent, many people, though not all,
integrate these cues and report hearing "da" or "tha" rather than "ba" or "ga."

Other Incongruent Stimuli

{{#widget:YouTube|id=pNwljeX2Wyk}} Auditory ba + Visual da

{{#widget:YouTube|id=TftvEdqWJnU}} Auditory da + Visual ba

{{#widget:YouTube|id=laPvTqVQiFg}} Auditory da + Visual ga

{{#widget:YouTube|id=7hn2P6NLu7o}} Auditory ga + Visual da

{{#widget:YouTube|id=-E9KkGYDOeU}} Auditory ga + Visual ba

Congruent Stimuli

{{#widget:YouTube|id=LVQYsX_MAs0}} Auditory ba + Visual ba

{{#widget:YouTube|id=X6hAExPB1m0}} Auditory da + Visual da

{{#widget:YouTube|id=6xNcDCsq0eM}} Auditory ga + Visual ga

Copyright/Licensing

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This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.

If you find these videos useful, please cite our work:

Magnotti JF and Beauchamp MS (in press). Causal Inference Explains Perception of the McGurk Effect and Other Incongruent Audiovisual Speech. PLOS Computational Biology

http://crossmark.crossref.org/dialog/?doi=10.1371/journal.pcbi.1005229