Compensation Mechanisms May Not Always Account for Enhanced Multisensory Illusion in Older Adults: Evidence from Sound-Induced Flash Illusion
Sound-induced flash illusion (SiFI) is typical auditory dominance phenomenon in multisensory illusion. Although a number of studies have explored the SiFI in terms of age-related effects, the reasons for the enhanced SiFI in older adults are still controversial. In the present study, older and young...
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MDPI AG
2022-10-01
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| Series: | Brain Sciences |
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| author | Heng Zhou Xiaole Liu Junming Yu Chunlin Yue Aijun Wang Ming Zhang |
| author_facet | Heng Zhou Xiaole Liu Junming Yu Chunlin Yue Aijun Wang Ming Zhang |
| author_sort | Heng Zhou |
| collection | DOAJ |
| description | Sound-induced flash illusion (SiFI) is typical auditory dominance phenomenon in multisensory illusion. Although a number of studies have explored the SiFI in terms of age-related effects, the reasons for the enhanced SiFI in older adults are still controversial. In the present study, older and younger adults with equal visual discrimination were selected to explore age differences in SiFI effects, and to explore the neural indicators by resting-state functional magnetic resonance imaging (rs-fMRI) signals. A correlation analysis was calculated to examine the relationship between regional homogeneity (ReHo) and the SiFI. The results showed that both younger and older adults experienced significant fission and fusion illusions, and fission illusions of older adults were greater than that of younger adults. In addition, our results showed ReHo values of the left middle frontal gyrus (MFG), the right inferior frontal gyrus (IFG) and right superior frontal gyrus (SFG) were significantly positively correlated with the SiFI in older adults. More importantly, the comparison between older and younger adults showed that ReHo values of the right superior temporal gyrus (STG) decreased in older adults, and this was independent of the SiFI. The results indicated that when there was no difference in unisensory ability, the enhancement of multisensory illusion in older adults may not always be explained by compensation mechanisms. |
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| language | English |
| last_indexed | 2024-03-09T20:34:32Z |
| publishDate | 2022-10-01 |
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| spelling | doaj.art-f415534e78e54f85b0c610508698fcba2023-11-23T23:15:05ZengMDPI AGBrain Sciences2076-34252022-10-011210141810.3390/brainsci12101418Compensation Mechanisms May Not Always Account for Enhanced Multisensory Illusion in Older Adults: Evidence from Sound-Induced Flash IllusionHeng Zhou0Xiaole Liu1Junming Yu2Chunlin Yue3Aijun Wang4Ming Zhang5Department of Psychology, Research Center for Psychology and Behavioral Sciences, Soochow University, Suzhou 215123, ChinaDepartment of Psychology, Research Center for Psychology and Behavioral Sciences, Soochow University, Suzhou 215123, ChinaDepartment of Psychology, Research Center for Psychology and Behavioral Sciences, Soochow University, Suzhou 215123, ChinaSchool of Physical Education and Sport Science, Soochow University, Suzhou 215021, ChinaDepartment of Psychology, Research Center for Psychology and Behavioral Sciences, Soochow University, Suzhou 215123, ChinaDepartment of Psychology, Research Center for Psychology and Behavioral Sciences, Soochow University, Suzhou 215123, ChinaSound-induced flash illusion (SiFI) is typical auditory dominance phenomenon in multisensory illusion. Although a number of studies have explored the SiFI in terms of age-related effects, the reasons for the enhanced SiFI in older adults are still controversial. In the present study, older and younger adults with equal visual discrimination were selected to explore age differences in SiFI effects, and to explore the neural indicators by resting-state functional magnetic resonance imaging (rs-fMRI) signals. A correlation analysis was calculated to examine the relationship between regional homogeneity (ReHo) and the SiFI. The results showed that both younger and older adults experienced significant fission and fusion illusions, and fission illusions of older adults were greater than that of younger adults. In addition, our results showed ReHo values of the left middle frontal gyrus (MFG), the right inferior frontal gyrus (IFG) and right superior frontal gyrus (SFG) were significantly positively correlated with the SiFI in older adults. More importantly, the comparison between older and younger adults showed that ReHo values of the right superior temporal gyrus (STG) decreased in older adults, and this was independent of the SiFI. The results indicated that when there was no difference in unisensory ability, the enhancement of multisensory illusion in older adults may not always be explained by compensation mechanisms.https://www.mdpi.com/2076-3425/12/10/1418sound-induced flash illusion (SiFI)resting-state functional magnetic resonance imaging (rs-fMRI)regional homogeneity (ReHo)fission and fusion illusions |
| spellingShingle | Heng Zhou Xiaole Liu Junming Yu Chunlin Yue Aijun Wang Ming Zhang Compensation Mechanisms May Not Always Account for Enhanced Multisensory Illusion in Older Adults: Evidence from Sound-Induced Flash Illusion Brain Sciences sound-induced flash illusion (SiFI) resting-state functional magnetic resonance imaging (rs-fMRI) regional homogeneity (ReHo) fission and fusion illusions |
| title | Compensation Mechanisms May Not Always Account for Enhanced Multisensory Illusion in Older Adults: Evidence from Sound-Induced Flash Illusion |
| title_full | Compensation Mechanisms May Not Always Account for Enhanced Multisensory Illusion in Older Adults: Evidence from Sound-Induced Flash Illusion |
| title_fullStr | Compensation Mechanisms May Not Always Account for Enhanced Multisensory Illusion in Older Adults: Evidence from Sound-Induced Flash Illusion |
| title_full_unstemmed | Compensation Mechanisms May Not Always Account for Enhanced Multisensory Illusion in Older Adults: Evidence from Sound-Induced Flash Illusion |
| title_short | Compensation Mechanisms May Not Always Account for Enhanced Multisensory Illusion in Older Adults: Evidence from Sound-Induced Flash Illusion |
| title_sort | compensation mechanisms may not always account for enhanced multisensory illusion in older adults evidence from sound induced flash illusion |
| topic | sound-induced flash illusion (SiFI) resting-state functional magnetic resonance imaging (rs-fMRI) regional homogeneity (ReHo) fission and fusion illusions |
| url | https://www.mdpi.com/2076-3425/12/10/1418 |
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