People with ________ mental retardation are slow to develop language skills, and their motor development is also affected, although they are capable of learning occupational and social skills and can learn to travel independently to familiar places

What etiology for Alzheimer's disease is suggested by the presence of beta-amyloid at the core of amyloid plaques?

a. dopamine deficiency b. radiation overdose c. immune system dysfunction d. circulatory system dysfunction

Schizophrenics are more likely to relapse if their family members express emotions that are hostile

Indicate whether the statement is true or false.