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Logo Autisme la Garriga.

Other Clinical Manifestations of Autistic Spectrum Disorder (ASD)

Symptoms associated with autism

Any clinical syndrome, apart from the basic, nuclear or pathognomonic symptoms mentioned, which constitute the basis of the definition, presents a set of secondary or associated symptoms (which are not necessary to include a particular subject in a given diagnostic category) which could notably vary in every individual.

Regarding autism, a first-order associated symptom is intellectual impairment, which affects approximately 50% of the entire population, since in contrary to the fact that it has manifested many times and without a reason, an important proportion of the population suffering from this syndrome shows an IQ within the limits of intellectual impairment.

Along with intellectual impairment, the most frequent secondary symptoms of autism are:
- Hyperactivity (childhood)
- Hypoactivity (adolescence and adulthood)
- Unstable humour
- Low tolerance to frustration
- Anxiety attack (with or without an apparent cause)
- Impulsivity
- Aggressiveness towards oneself
- Aggressiveness towards others (less frequent than towards oneself)
- Sleep disorders
- Eating disorders (hyperselectivity, nibbling)
- Epileptic seizures (20-25% of the total population)

Jove amb autisme a la piscina.

In autism, a first-order associated symptom is intellectual impairment, which affects approximately 50% of the entire population.