Autism is a subtype of pervasive developmental disorder and belongs to mental and psychological diseases, while ADHD refers to attention deficit hyperactivity disorder. When children with autism have attention deficit hyperactivity disorder, they mainly manifest as inattention, excessive activity, impulsiveness, and so on. Here are the details:
1. Inattention: Children with autism suffer from inattention due to abnormal brain neurotransmitters. They cannot concentrate on one thing and often have emotional instability.
2. Excessive Activity: Due to abnormal brain neurotransmitters, children with autism may experience delayed motor function development, leading to excessive activity. They may also exhibit repetitive and stereotyped behaviors, such as maintaining the same posture for a long time.
3. Impulsiveness: Children with autism tend to be impulsive due to immature development of the cerebral cortex caused by abnormal brain neurotransmitters.
Generally, children with autism have lower intelligence levels and delayed language development.
4. Other Manifestations: Children with autism may also experience social and communication difficulties, such as lack of eye contact when interacting with others and inability to respond with eye contact when asked questions.
Moreover, they may exhibit hypersensitivity or hyposensitivity to sensation. If parents suspect that their child has autism, it is recommended to seek medical attention promptly for diagnosis through EEG and cerebral evoked potential tests. Children diagnosed with autism should follow the doctor's instructions for treatment.