McGurk effect in Polish listeners

The phenomenon of a multi-modal interaction between audio
and video stimuli, called the McGurk effect, was investigated for the Polish
subjects. Two experiments were performed. In the first experiment the occurrence
of McGurk effect for Polish speech was examined. The results of the first
experiment for which over 94% of listeners' answers were consistent with the
audio stimuli indicated that generally it is very difficult to evoke the McGurk
effect in Polish listeners. In the second experiment the stimuli for which the
McGurk effect was distinctly present were subjected to different kind of audio
or video distortions and presented to the listeners. The distortions in the
visual signals resulted in an increase of the answers consistent with the audio
stimuli while the distortions in the audio signals resulted in an increase of
the answers consistent with the visual stimuli.