Learning disability psychiatry Flashcards
Mental disorder
mental illness
learning disability
personality disorder
Learning disability
incomplete development of the mind, impaired skills manifested during developmental period which contribute to overall intelligence
3 criteria for learning disability
intellectual impairment
social or adaptive dysfunction
onset in developmental period
Intellectual impairment
IQ<70
Wechsler
Social or adaptive dysfunction
vineland scale
2+: communication, adaptive skills, community use, self direction, health and safety, leisure and work, academics
Onset in developmental period
age 18
Prevalence of IQ<70 statistically
2.5%
Reality of prevalence <70
1-2%
mortality
functioning level
Mild learning disability IQ
50 to 60
Moderate learning disability IQ
35 to 49
severe learning disability IQ
20 to 34
profound learning disability IQ
<20
Aetiology of LD
genetics infective toxic trauma unknown
Genetics LD
single gene eg fragile x, PKU
microdeletion eg DiGeorge syndrome, Prader-Willi
chromosomal eg downs
Infective LD
ante-natal eg rubella, Zika
post-natal eg meningitis