Module 68: Schizophrenia

Schizophrenia afflicts how many people, knows no national boundaries, affecting both males and females

1/100

Nearly 1/100 people develop schizophrenia. An estimated how many people world wide suffer from it?

24 million

When schizophrenia is a slow-moving process called what, recovery is doubtful.

Chronic

These types of schizophrenics exhibit negative symptoms of social withdrawal.

Chronic schizophrenia

What behavior may also be inappropriate. Some perform senseless, compulsive acts, such as continually rocking or rubbing an arm.

Motor

Disorganized thinking, disturbed perceptions, and inappropriate emotions profoundly disrupt social relationships and make it difficult to hold what?

a job

Negative symptoms are the ____ of appropriate behaviors

absence

When previously well-adjusted people develop schizophrenia rapidly following life stresses, recovery is more likely.

acute/reactive schizophrenia

Children _____ by someone who develops schizophrenia seldom "catch" the disorder. They have an elevated risk if a _____ parent is diagnosed with schizophrenia.

adopted; biological

A person with schizophrenia may have hallucinations. They may feel, taste, see, or smell things that aren't there. Most often, hallucinations are what: voices making what remarks or giving orders?

auditory; insulting

Most of new research studies link schizophrenia with ___ abnormalities and ____ predispositions

brain; genetic

false beliefs, often of persecution or grandeur, that may accompany psychotic disorders

delusions

false sensory experience, such as seeing something in the absence of an external visual stimulus. sensory experiences without sensory stimulation

hallucination

Drugs that block dopamine receptors often

lessen schizophrenic symptoms

Possible schizophrenic prenatal culprits:

midpregnancy viral infection that impairs fetal development

a psychological disorder in which a person loses contact with reality, experiencing irrational ideas and distorted perceptions

psychosis

Excess of receptors for dopamine (too much stimulation) causes

schizophrenia

a psychological disorder characterized by delusions, hallucinations, disorganized speech, and/or diminished or inappropriate emotional expression

schizophrenia

Psychotic disorders

schizophrenia, antisocial personality disorder, dissociative identity disorder

Disorganized thoughts may result from a breakdown in

selective attention

Schizophrenia involves not one isolated brain abnormality but problems with _____ brain regions and their ______.

several; interconnections

1/100 odds of any person diagnosed with schizophrenia become 1 in 10 among those whose _____ has the disorder, and close to 1 in 2 if their _____ has it.

siblings/parent; twin

irrelevant, minute what may distract their attention from a bigger event or a speaker's meaning?

stimuli

negative schizophrenia symptoms

toneless voices, expressionless faces, or mute and rigid bodies

What do appear to increase the odds that a child develops schizophrenia ?

Fetal-virus infections

Who also share a prenatal environment?

Identical twins

Thinking of a person with schizophrenia is fragmented, bizarre, and often distorted by false beliefs called what that are particularly paranoid prone to delusions of what?

delusions; persecution

Prenatal viruses and genetic predispositions do not by themselves cause schizophrenia, neither do family or social factors alone. It remains true that "no ______ causes have been discovered that invariably produce schizophrenia in people who are not related to a person with the disorder.

environmental

Converging lines of evidence suggest that what play a contributing role in the development of schizophrenia?

fetal-virus infections

People are at increased risk if their country experiences ____ epidemic, born in densely populated areas, those born in spring and winter months, same in both hemispheres, sick mothers, higher levels of ____

flu; antibodies

The expressed emotions of schizophrenia are often utterly _____, split off from _____.

inappropriate; reality

Schizophrenia patients with _____ experience hallucinations, talk in disorganized deluded ways, exhibit inappropriate laughter, tears, or rage.

positive symptoms

Acute schizophrenics have what symptoms responsive to what kind of therapy?

positive; drug

Positive symptoms are the _____ of inappropriate behaviors

presence