Language：English   Publishing type：Research paper (scientific journal)   Publisher：Frontiers Media SA  

DOI： 10.3389/fnins.2020.00340

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Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：SAGE Publications  

Autism spectrum disorder (ASD) refers to neurodevelopmental disorders characterized by symptoms such as social deficits and restricted interests and behavior. Several studies have investigated specific sensory processing in relation to ASD traits. However, findings appear to be inconsistent and inconclusive because of variation in ASD traits among participants and differences in the tasks adopted. In this study, we investigated relationships between sensory thresholds in visual, auditory, and tactile modalities and various ASD traits to account for individual variability of traits in typically developing adults using the same experimental tasks. We estimated detection and discrimination thresholds for brightness, sound pressure, and vibrotactile stimulus strength. We also estimated the degree of ASD traits in each participant with a questionnaire. We found that higher tactile detection and visual discrimination thresholds were related to ASD traits in difficulty of communication. A lower tactile discrimination threshold and higher visual detection threshold was also related to the ASD trait of strong focus of attention. These findings suggest the existence of unique relationships between particular low-level sensory processing and specific ASD traits, indicating that irregularities in sensory processing may underlie variation in ASD traits.

DOI： 10.1177/0301006620907827

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Other Link： http://journals.sagepub.com/doi/full-xml/10.1177/0301006620907827

Language：Japanese   Publisher：(一社)日本感覚統合学会  

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

DOI： 10.1007/s10803-018-3677-8

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Other Link： http://link.springer.com/content/pdf/10.1007/s10803-018-3677-8.pdf

Language：Japanese   Publisher：東北神経心理懇話会  

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：Brill  

<title>Abstract</title>
Autism spectrum disorder (ASD) includes characteristics such as social and behavioral deficits that are considered common across the general population rather than unique to people with the diagnosis. People with ASD are reported to have sensory irregularities, including crossmodal perception. Crossmodal correspondences are phenomena in which arbitrary crossmodal inputs affect behavioral performance. Crossmodal correspondences are considered to be established through associative learning, but the learning cues are considered to differ across the types of correspondences. In order to investigate whether and how ASD traits affect crossmodal associative learning, this study examined the relationships between the magnitude of crossmodal correspondences and the degree of ASD traits among non-diagnosed adults. We found that, among three types of crossmodal correspondences (brightness–loudness, visual size–pitch, and visual location–pitch pairs), the brightness–loudness pair was related with total ASD traits and a subtrait (social skill). The magnitude of newly learned crossmodal associations (the visual apparent motion direction–pitch pair) also showed a relationship with an ASD subtrait (attention switching). These findings demonstrate that there are unique relationships between crossmodal associations and ASD traits, indicating that each ASD trait is differently involved in sensory associative learning.

DOI： 10.1163/22134808-20181304

PubMed

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Other Link： https://brill.com/downloadpdf/journals/msr/31/8/article-p729_2.xml

Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Brill  

Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by deficits in social communication and interaction, and restricted interests and behavior patterns. These characteristics are considered as a continuous distribution in the general population. People with ASD show atypical temporal processing in multisensory integration. Regarding the flash–beep illusion, which refers to how a single flash can be illusorily perceived as multiple flashes when multiple auditory beeps are concurrently presented, some studies reported that people with ASD have a wider temporal binding window and greater integration than typically developed people; others found the opposite or inconsistent tendencies. Here, we investigated the relationships between the manner of the flash–beep illusion and the various dimensions of ASD traits by estimating the degree of typically developed participants’ ASD traits including five subscales using the Autism-Spectrum Quotient. We found that stronger ASD traits of communication and social skill were associated with a wider and narrower temporal binding window respectively. These results suggest that specific ASD traits are differently involved in the particular temporal binding processes of audiovisual integration.

DOI： 10.1163/22134808-00002612

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Other Link： https://data.brill.com/files/journals/22134808_031_06_s002_text.pdf

Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Igaku-Shoin Ltd  

Most individuals with autism-spectrum disorders have hypersensitivity/hyposensitivity to various types of sensory stimuli. Although several hypotheses such as higher sensitivity to stimuli, alterations in brain structure and function, and dysfunction of inhibitory systems at the molecular level have been suggested, there is no convincing evidence. We found that individuals with high temporal resolution tended to have strong hypersensitivity to sensory stimuli and vice versa. In addition, we focused on a case with extraordinarily high temporal resolution across the tactile, auditory, and audio-tactile domains. We believe that studying such an extreme case of temporal processing could facilitate an understanding of the neural basis of time perception.

Scopus

PubMed

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Language：Japanese   Publisher：The Japanese Society for Cognitive Psychology  

The people with autism spectrum disorders (ASD) show various tendencies like difficulty in social interactions and restricted interests and behavior, and atypical audiovisual interaction. Non-diagnosed people are also reported having variable ASD traits. However, it has been not fully investigated the particular relationships between ASD traits and audiovisual interaction. We estimated the degree of ASD traits for non-diagnosed people, and the audiovisual interaction pattern under the stream bounce perception (i.e., a sound enhances bouncing perception when two moving objects overlap). The people with the higher comprehensive ASD traits showed the stronger audiovisual interaction effect. Additionally, the people with the higher ASD traits for the difficulty in social interactions showed the effect even when the sound was presented after the overlap of the visual stimuli. The comprehensive ASD traits and the traits related to social difficulty would have unique effects on the audiovisual interaction under the stream bounce perception.

DOI： 10.14875/cogpsy.2017.0_73

CiNii Article

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Language：Japanese   Publisher：The Japanese Society for Cognitive Psychology  

People with autism spectrum disorders (ASD) are reported to have irregularities for crossmodal perception. Crossmodal correspondences are specific relationships among arbitrary crossmodal sensations (e.g., a brighter stimulus and a louder sound). Crossmodal correspondences are considered to be established by associative learning, but learning cues are assumed to be different among the types of correspondences. This study investigated the relationships between the crossmodal correspondences and the ASD traits. People with lower ASD trait value showed the dominant correspondence effect for the brightness-loudness and visual location-pitch pairs, whose correspondence cue is assumed as neural/perceptual and conceptual/linguistic similarities, respectively. For the visual size-pitch pair which is assumed to be acquired by statistical learning, the stronger ASD trait for detailed attention was related to stronger magnitude of the correspondence. These results suggest the unique relationships between the ASD traits and the crossmodal correspondences or the manner of sensory associative learning.

DOI： 10.14875/cogpsy.2017.0_72

CiNii Article

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Language：Japanese  

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Language：Japanese   Publisher：The Japanese Society for Cognitive Psychology  

People diagnosed with Autism spectrum disorders (ASD) showed particular temporal processing in multisensory integration. On the double flash illusion (one flash is perceived as twice by the presentation of two beeps), people with ASD was reported to have wider temporal binding window and greater integration than typically developed (TD) people, others found the opposite or inconsistent tendencies. Here, we focused on the fact that there exist five subcategories of ASD trait, and investigated the relationships between ASD traits and the manner of the double flash illusion by using Autism-Spectrum Quotient for TD people. We found the relationships between stronger ASD trait in communication and wider temporal window, stronger ASD trait in social skill and narrower temporal window, and stronger ASD trait in imagination and weaker magnitude of the illusion. These results suggest that each ASD trait could be uniquely related to the particular temporal binding processes of audiovisual integration.

DOI： 10.14875/cogpsy.2016.0_54

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Event date： 26 10 2019 - 27 10 2019

Presentation type：Poster presentation  

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Event date： 25 7 2019 - 28 7 2019

Presentation type：Poster presentation  

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Event date： 1 5 2019 - 4 5 2019

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Event date： 15 3 2019 - 16 3 2019

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Event date： 27 9 2018

Presentation type：Symposium, workshop panel (public)  

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Event date： 26 7 2018 - 29 7 2018

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Event date： 3 2 2018

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Event date： 12 9 2017 - 13 9 2017

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Event date： 3 6 2017

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Event date： 3 6 2017

Presentation type：Poster presentation  

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Event date： 28 3 2017 - 31 3 2017

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Event date： 20 11 2016

Presentation type：Poster presentation  

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Event date： 12 11 2016 - 16 11 2016

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Event date： 30 10 2016

Presentation type：Poster presentation  

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Event date： 20 7 2016 - 22 7 2016

Presentation type：Poster presentation  

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Event date： 18 6 2016

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