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Chronic neurodevelopmental disorders primarily refer to conditions that affect the development of the nervous system, leading to issues with cognitive, emotional, and physical functioning. Autism Spectrum Disorder, Attention-Deficit Hyperactivity Disorder (ADHD), and Cerebral Palsy are all recognized as neurodevelopmental disorders.

Autism Spectrum Disorder is characterized by challenges in social interaction, communication, and repetitive behaviors. ADHD involves persistent patterns of inattention and/or hyperactivity-impulsivity. Cerebral Palsy affects movement and muscle tone or posture due to abnormal brain development or damage to the developing brain.

On the other hand, being hearing-impaired does not inherently fall under the category of neurodevelopmental disorders. Hearing impairment is primarily related to auditory processing and does not necessarily involve brain development or cognitive function in the same way that the other disorders listed do. While hearing impairment can influence communication and language development, it is not classified as a neurodevelopmental disorder.