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A Laboratory Study of the McGurk Effect in 324 Monozygotic and Dizygotic Twins
Feng, Guo1,2,3; Zhou, Bin1,2; Zhou, Wen1,2; Beauchamp, Michael S.4; Magnotti, John F.4
Corresponding AuthorZhou, Wen( ; Magnotti, John F.(
AbstractMultisensory integration of information from the talker's voice and the talker's mouth facilitates human speech perception. A popular assay of audiovisual integration is the McGurk effect, an illusion in which incongruent visual speech information categorically changes the percept of auditory speech. There is substantial interindividual variability in susceptibility to the McGurk effect. To better understand possible sources of this variability, we examined the McGurk effect in 324 native Mandarin speakers, consisting of 73 monozygotic (MZ) and 89 dizygotic (DZ) twin pairs. When tested with 9 different McGurk stimuli, some participants never perceived the illusion and others always perceived it. Within participants, perception was similar across time (r = 0.55 at a 2-year retest in 150 participants) suggesting that McGurk susceptibility reflects a stable trait rather than short-term perceptual fluctuations. To examine the effects of shared genetics and prenatal environment, we compared McGurk susceptibility between MZ and DZ twins. Both twin types had significantly greater correlation than unrelated pairs (r = 0.28 for MZ twins and r = 0.21 for DZ twins) suggesting that the genes and environmental factors shared by twins contribute to individual differences in multisensory speech perception. Conversely, the existence of substantial differences within twin pairs (even MZ co-twins) and the overall low percentage of explained variance (5.5%) argues against a deterministic view of individual differences in multisensory integration.
Keywordaudiovisual fusion multisensory integration McGurk effect twin studies behavioral genetics
Indexed BySCI
Funding ProjectKey Research Program of Frontier Sciences of the Chinese Academy of Sciences[QYZDB-SSW-SMC055] ; National Natural Science Foundation of China[31671138] ; Beijing Twin Study project (BeTwiSt) of Institute of Psychology, Chinese Academy of Sciences ; NIH[R01NS065395] ; Gulf Coast Consortia, NLM Training Program in Biomedical Informatics (NLM)[T15LM007093]
WOS Research AreaNeurosciences & Neurology
WOS SubjectNeurosciences
WOS IDWOS:000497572300001
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Document Type期刊论文
Corresponding AuthorZhou, Wen; Magnotti, John F.
Affiliation1.Chinese Acad Sci, CAS Ctr Excellence Brain Sci & Intelligence Techn, Inst Psychol, CAS Key Lab Behav Sci, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Dept Psychol, Beijing, Peoples R China
3.Southwest Jiaotong Univ, Psychol Res & Counseling Ctr, Chengdu, Sichuan, Peoples R China
4.Baylor Coll Med, Dept Neurosurg & Core Adv MRI, Houston, TX 77030 USA
First Author AffilicationKey Laboratory of Behavioral Science, CAS
Corresponding Author AffilicationKey Laboratory of Behavioral Science, CAS
Recommended Citation
GB/T 7714
Feng, Guo,Zhou, Bin,Zhou, Wen,et al. A Laboratory Study of the McGurk Effect in 324 Monozygotic and Dizygotic Twins[J]. FRONTIERS IN NEUROSCIENCE,2019,13:8.
APA Feng, Guo,Zhou, Bin,Zhou, Wen,Beauchamp, Michael S.,&Magnotti, John F..(2019).A Laboratory Study of the McGurk Effect in 324 Monozygotic and Dizygotic Twins.FRONTIERS IN NEUROSCIENCE,13,8.
MLA Feng, Guo,et al."A Laboratory Study of the McGurk Effect in 324 Monozygotic and Dizygotic Twins".FRONTIERS IN NEUROSCIENCE 13(2019):8.
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