When pervasive developmental disorders appear such as:
- autism spectrum disorders
- disturbances of emotional / behavioral regulation
- motor coordination disorders such as awkwardness, clumsiness, dyspraxia
- developmental disorders such as delay, hyperactivity and attention disorders
- learning disorders such as dysgraphia and dyslexia
- delay in acute and chronic neuromotor and neuropsychiatric pathologies in perceptual disorders (deafness, blindness)