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McGurk effect in Polish listeners

100%

Majewski W.

Archives of Acoustics

2008

tom Vol. 33, No. 4

447-454

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.

Developmental Trajectory of Audiovisual Speech Integration in Early Infancy. A Review of Studies Using the McGurk Paradigm

70%

Tomalski P.

2015

tom 19

nr 2

77-100

Apart from their remarkable phonological skills young infants prior to their first birthday show ability to match the mouth articulation they see with the speech sounds they hear. They are able to detect the audiovisual conflict of speech and to selectively attend to articulating mouth depending on audiovisual congruency. Early audiovisual speech processing is an important aspect of language development, related not only to phonological knowledge, but also to language production during subsequent years. Th is article reviews recent experimental work delineating the complex developmental trajectory of audiovisual mismatch detection. Th e central issue is the role of age-related changes in visual scanning of audiovisual speech and the corresponding changes in neural signatures of audiovisual speech processing in the second half of the first year of life. Th is phenomenon is discussed in the context of recent theories of perceptual development and existing data on the neural organisation of the infant ‘social brain’.