Rett’s disorder refers to a pervasive developmental disorder characterized by a deceleration of head growth in the early years, a loss of previously acquired purposeful hand skills with subsequent development of stereotyped hand movements, a loss of social engagement, poorly coordinated gait or trunk movements, severe impairments in expressive and receptive language development, and severe psychomotor retardation.
Other /More definition:
Rett’s disorder refers to progressive neurological developmental disorder featuring constant hand-wringing, mental retardation, and impaired motor skills.

Related Articles

Rett's Disorder at psychology-glossary.com■■■■■■■■■■
Rett's Disorder also called Rett Syndrome refers to a pervasive developmental disorder, occurring only . . . Read More
Pick’s disease at psychology-glossary.com■■■■■■■
Pick’s disease refers to rare neurological disorder that results in Pre-senile Dementia. Pick's disease . . . Read More
Childhood disintegrative disorder at psychology-glossary.com■■■■■■■
childhood disintegrative disorder refers to pervasive developmental disorder involving severe regression . . . Read More
Rett Syndrome at psychology-glossary.com■■■■■■
Rett Syndrome refers to a progressive neurologic developmental disorder and one of the most common causes . . . Read More
Angelman Syndrome at psychology-glossary.com■■■■■■
Angelman Syndrome refers to a Genetic disorder associated with an abnormality of chromosome 15. Children . . . Read More
Amnesia at psychology-glossary.com■■■■■■
Amnesia refers to the partial or complete loss of memory resulting from brain trauma or psychological . . . Read More
Dyspraxia at psychology-glossary.com■■■■■■
Dyspraxia refers to a developmental disorder of planning and organisation of physical movement. The essential . . . Read More
Chatterbox syndrome at psychology-glossary.com■■■■■■
Chatterbox syndrome refers to a disorder characterized by severe mental retardation but remarkable linguistic . . . Read More
Alzheimer at psychology-glossary.com■■■■■■
Alzheimer's disease is a progressive neurological disorder that primarily affects cognitive functioning, . . . Read More
CDD Childhood disintegrative disorder at psychology-glossary.com■■■■■■
CDD Childhood disintegrative disorder: CDD which is the acronym of Childhood Disintegrative Disorder . . . Read More