期刊
BRAIN AND LANGUAGE
卷 247, 期 -, 页码 -出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bandl.2023.105359
关键词
Auditory neural adaptation; Auditory memory; Audiovisual speech perception; EEG
Visual information from a speaker's face enhances auditory neural processing and speech recognition. This study found that visual speech can influence auditory memory, and there is lower auditory neural adaptation when an auditory syllable is preceded by a visual syllable.
Visual information from a speaker's face enhances auditory neural processing and speech recognition. To determine whether auditory memory can be influenced by visual speech, the degree of auditory neural adaptation of an auditory syllable preceded by an auditory, visual, or audiovisual syllable was examined using EEG. Consistent with previous findings and additional adaptation of auditory neurons tuned to acoustic features, stronger adaptation of N1, P2 and N2 auditory evoked responses was observed when the auditory syllable was preceded by an auditory compared to a visual syllable. However, although stronger than when preceded by a visual syllable, lower adaptation was observed when the auditory syllable was preceded by an audiovisual compared to an auditory syllable. In addition, longer N1 and P2 latencies were then observed. These results further demonstrate that visual speech acts on auditory memory but suggest competing visual influences in the case of audiovisual stimulation.
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