Wearable Eye Tracking During Bimanual Tasks in Children With Cerebral Palsy

Inclusion Criteria General Inclusion Criteria Children aged 6-12 years * Ability to understand simple instructions required for the study procedures and perform structured visual and bimanual tasks * For children who routinely wear glasses or contact lenses, ability to view near visual stimuli and task materials with their habitual vision correction * Written informed consent provided by a parent or legally authorized representative, with the child providing assent after receiving an age- and developmentally appropriate explanation of the study Cerebral Palsy Group * Diagnosis of cerebral palsy confirmed by a pediatric physiatrist * Manual Ability Classification System (MACS) level I-III * Ability to grasp or manipulate task materials with at least one hand and attempt bimanual task performance Typically Developing Group * Typical developmental history based on parent report and confirmation by the research team * No history of neurological disorders, including cerebral palsy, or musculoskeletal conditions affecting upper-limb function * No diagnosis of a neurodevelopmental disorder that may affect task performance, such as attention-deficit/hyperactivity disorder, autism spectrum disorder, or intellectual disability Exclusion Criteria * Visual impairment that prevents the child from adequately viewing near visual stimuli or task materials, even with habitual vision correction * Severe strabismus, nystagmus, or another ophthalmologic condition judged likely to substantially compromise stable eye-tracking data collection * Severe cognitive, communication, or behavioral difficulties that prevent adequate understanding or performance of the study tasks * Severe upper-limb joint contracture, pain, fracture, or another musculoskeletal condition that prevents safe performance of the bimanual tasks * Uncontrolled epilepsy, acute illness, unstable medical condition, or any other condition judged to make study participation unsafe