Previously submitted to: JMIR Formative Research (no longer under consideration since Mar 23, 2018)
Date Submitted: Jan 30, 2018
Open Peer Review Period: Feb 1, 2018 - Mar 8, 2018
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Visual Behavior Analysis Between Neuro-typical Children and Children with Autism Spectrum Disorder
Autism Spectrum Disorder (ASD) is a complex and diverse neuro-developmental condition. Little research has been done globally which is not commensurate with the multifariousness of ASD and in developing countries like Bangladesh, such fields of research are almost void. This research investigates the visual behavior of 24 neuro-typical children and 24 children with ASD in smooth pursuit and saccadic eye movement. The smooth pursuit experiment contained animations of objects moving horizontally across the screen and the saccadic tests contained animations of predictable and non-predictable saccades. To attain the gaze data, Tobii EyeX Controller was used and the data was processed and analyzed in MATLAB. Significant differences in results were found in the two areas of investigation. Children with ASD were found to have higher saccadic latency, lower accuracy in smooth pursuit and an overall poorer performance in these basic visual tests compared to their control counterparts. Fundamental eye movements are connected to the sensory- motor processing of the brain and such behavior might be the product of flawed cerebellum and motor functions of the brain. To fully understand this, further eye-tracking, neuroimaging, and behavioral studies should be done in integration.
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