Clinical Research Directory

Inclusion Criteria: * Being between 3 and 6 years of age * For typically developing children, having no diagnosis of any neurodevelopmental or orthopedic disorder * Having a diagnosis of Pervasive Developmental Disorder made by a child psychiatrist or pediatric neurologist * Absence of visual, auditory, or motor impairments that would prevent administration of the Peabody Developmental Motor Scales-2 (PDMS-2) and the Catch Pad reaction test * Having sufficient cognitive ability to understand and follow simple instructions during the assessment Exclusion Criteria: * In the typically developing group, having a diagnosis of Attention Deficit -Hyperactivity Disorder (ADHD) or any other neurodevelopmental disorder * Presence of additional neurological or orthopedic conditions, apart from Pervasive Developmental Disorder, that would interfere with test administration * Visual or hearing impairments severe enough to prevent test administration * History of orthopedic trauma or surgery within the last 6 months that could affect motor performance * Presence of significant behavioral problems