All of the following are positive symptoms of schizophrenia except:
Answer
Social withdrawal
Auditory hallucinations
Disorganised speech
Visual hallucinations
Question 2
Question
The negative symptoms of schizophrenia:
Answer
Are best illustrated by delusions
Are likely to be caused by excessive brain dopamine activity
Represent the absence of behaviours that are usually present
Are best illustrated by poor abstract thinking
Question 3
Question
The positive symptoms of schizophrenia may be caused by:
Answer
An imbalance of norepinephrine in the brain
A single recessive gene
Excessive activity in forebrain dopamine circuits in the brain
Excessive activity in midbrain dopamine circuits in the brain
Question 4
Question
The fact that the odds of a child born to two parents, both of whom have schizophrenia, is less than 50% suggests that:
Answer
Schizophrenia is associated with infertility
Schizophrenia is not produced by a single gene
Schizophrenia is a metabolic disorder
Schizophrenia is produced by a single dominant gene
Question 5
Question
Imagine that you have been handed a list of drugs and that beside each drug name is a number that represents the potency of that drug for blocking midbrain dopamine receptors (where a low number means a greater potency at blocking). Which would you choose for the treatment of schizophrenia?
Answer
Potency value = 0.1
Potency value = 0.3
Potency value = 1.0
Potency value = 5.0
Question 6
Question
Administration of high doses of which of the following drugs would be expected to produce the positive symptoms of schizophrenia:
Answer
L-DOPA
Methamphetamine
Cocaine
All of the above are correct
Question 7
Question
John has been diagnosed with schizophrenia and has shown improvement in positive symptoms while taking chlorpromazine (CPZ). John may be at risk of his positive symptoms returning if he:
Answer
Stops taking CPZ and takes cocaine at a party
Takes double his CPZ does per pay
Mixes alcohol with CPZ
Takes reserpine in addition to CPZ
Question 8
Question
The mesolimbic pathway projects from the ___________ to the __________:
Answer
Substantia nigra; caudate
Globus pallidus; ventral tegmental area
Ventral tegmental area; frontal cortex
Ventral tegmental area; nucleus accumbens and amygdala
Question 9
Question
Clozapine is referred to as an "atypical" antipsychotic drug because it:
Answer
Can reverse positive symptoms of schizophrenia without producing tardive dyskinesia
Is more potent at blocking D2 than D4 receptors
Effectively treat schizophrenia but also produces motor side effects
Does not have any effect on dopamine
Question 10
Question
The negative symptoms of schizophrenia may be related to:
Answer
Excessive birth weight
Mild brain damage
Overactivity of dopaminergic neurons
Having an older mother
Question 11
Question
Which of the following suggests that schizophrenia may be associated with atypical neuroanatomy:
Answer
The size of the lateral ventricles increases in people with schizophrenia
The size of the lateral ventricles decreases in people with schizophrenia
Older people, who have already lost substantial numbers of neurons, are more likely to develop schizophrenia than younger people
The neurological symptoms observed in schizophrenia are unique to schizophrenia
Question 12
Question
The major affective disorders are also known as:
Answer
Anxiety disorders
Schizoaffective disorders
Manic-depression disorders
Mood disorders
Question 13
Question
_______________ is/are NOT an effective treatment for unipolar depression
Answer
Drugs that block the reuptake of serotonin or norepinephrine
Good sleep hygiene
Lithium salts
Electroconvulsive therapy
Question 14
Question
The ability of fluoxetine (Prozac) to function as an effective treatment for _____________ is related to its capacity to ____________:
Answer
Delusions and hallucinations; block serotonin reuptake
Depression; block serotonin reuptake
Anxiety disorders; inhibit MAO
Obsessive-compulsive disorder; release glycine
Question 15
Question
A person with ____________ allele(s) of the gene for the _____________ transporter is at risk for depression