A PSY 338 Study Guide - Final Guide: Intellectual Disability, Chromosome Abnormality, Metabolic Disorder
Document Summary
Development related disorders: first appear at birth or during youth, why the dsm, causes distress, inability to live independently and to function. Fragile x syndrome: most common in males, transmitted through the fragile x gene on the x chromosome, severe mental retardation, 1 in 4,000 males, 1 in 8,000 females, adhd comorbidity. Downs syndrome: caused by the presence of an extra 21st chromosome, characteristic facial structure, early on, fated to live in institutions, many people with down syndrome have mild forms of intellectual disability. Environmental causes: prenatal disease, rubella (german measles, difficult delivery, premature birth, prenatal substance abuse. Failure to thrive -> not getting adequate nutrition or care: prenatal substance abuse, 1 to 1. 5 births in the us is a child that"s born in the development of fetus. 100% preventable leading cause of mental retardation characteristic set of facial abnormalities. Cerebellar ataxia -> problems with balance, gait, eye movements. Smooth -> no ridges under nose indicate fas.
