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Updated: Jan 25, 2026

Author Spotlight: Exploring Autism Spectrum Disorder Symptoms in Fruit Flies — Genetic Models and Behavioral Tests

Author Spotlight: Exploring Autism Spectrum Disorder Symptoms in Fruit Flies — Genetic Models and Behavioral Tests

Published on: September 6, 2024

自閉症のリスクが高い乳児とそうでない乳児における偶発性パラダイム中の行動の違い

Marcelo R Rosales¹, José Carlos Pulido², John Sideris³

¹College of Health and Rehabilitation Sciences, The Ohio State University, Columbus, Ohio, United States of America.

|January 23, 2026

要旨

Introduction:

Motor impairments have been reported in infants at elevated likelihood of autism and those later diagnosed with autism. However, empirical studies comparing higher to lower likelihood infants are lacking, limiting our understanding of these motor impairments. This study aimed to determine and describe the behavioral differences between infants at higher (HLA) versus lower likelihood (LLA) of autism during a contingency learning paradigm.

Methods:

Thirty full-term infants (6-9 months of age) at HLA and LLA (n = 15 per group) participated in a contingency learning paradigm. Movements of the infant's right leg activated an infant-sized humanoid robot to reinforce production of right leg movements. Gaze behaviors, the number of times the infants activated the robot, and evidence supporting learning were examined and compared between groups.

Results:

Gaze and motor behavioral data suggest no discernable group differences in terms of overall looking duration, anticipatory gazes, and number of robot activations. However, four of the infants at HLA displayed visual motor patterns that were qualitatively different.

Conclusion:

Results from our study suggest that infants at HLA and LLA are using similar behaviors to learn a contingency learning task, but heterogeneity within the HLA group is noted and requires further study.

キーワード:

乳児自閉症発達行動学習運動視線

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