自閉症児における異なる学習環境下での唾液アミラーゼ活性(sAA)値を用いた交感神経系の活動評価に関する研究

概要

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This study investigated whether salivary α-amylase activity (sAA) can be a useful index for evaluating sympathetic nervous system (SNS) function of autistic children in an educational setting. Subjects were 13 autistic children who were enrolled at a special needs education school. We measured the children's sAA activity and heart rate (HR) before and after their daily group and individual study sessions. The results showed that there was no significant difference in sAA or HR measured before and after each session. However, the variance of sAA values was significantly smaller after individual study sessions compared with that before the sessions. On the other hand, no significant difference was observed in the mean or variance of HR values between before and after each session. These results indicate that, in individual study sessions, teachers accurately recognize the arousal level of individual students and adjust the level of learning to meet each student's needs. Our findings also suggest that sAA values can be a useful indicator of functional changes in the SNS that are difficult to evaluate using HR values.
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