Autistic Traits Affect P300 Response to Unexpected Events, regardless of Mental State Inferences
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- Mitsuhiko Ishikawa
- Graduate School of Letters, Kyoto University, Kyoto, Japan
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- Shoji Itakura
- Graduate School of Letters, Kyoto University, Kyoto, Japan
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- Hiroki C. Tanabe
- Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan
書誌事項
- 公開日
- 2017
- 資源種別
- journal article
- 権利情報
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- http://creativecommons.org/licenses/by/4.0/
- DOI
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- 10.1155/2017/8195129
- 公開者
- Wiley
この論文をさがす
説明
<jats:p>Limited use of contextual information has been suggested as a way of understanding cognition in people with autism spectrum disorder (ASD). However, it has also been argued that individuals with ASD may have difficulties inferring others’ mental states. Here, we examined how individuals with different levels of autistic traits respond to contextual deviations by measuring event-related potentials that reflect context usage. The Autism Spectrum Quotient (AQ) was used to quantify autistic-like traits in 28 university students, and 19 participants were defined as Low or High AQ groups. To additionally examine inferences about mental state, two belief conditions (with or without false belief) were included. Participants read short stories in which the final sentence included either an expected or an unexpected word and rated the word’s degree of deviation from expectation. P300 waveform analysis revealed that unexpected words were associated with larger P300 waveforms for the Low AQ group, but smaller P300 responses in the High AQ group. Additionally, AQ social skill subscores were positively correlated with evaluation times in the Unexpected condition, whether a character’s belief was false or not. This suggests that autistic traits can affect responses to unexpected events, possibly because of decreased availability of context information.</jats:p>
収録刊行物
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- Autism Research and Treatment
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Autism Research and Treatment 2017 1-10, 2017
Wiley
