Chapter 48: Neurobiology of Psychotic Illnesses

Chapter 48: Neurobiology of Psychotic Illnesses

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

MULTIPLE CHOICE

1. Schizophrenia is characterized by

ANS:  C

Schizophrenia is now correctly understood as a split or separation among normally well-synchronized brain functions. This loss of synchronized brain functioning leads to thoughts, behaviors, and feelings that are disordered, disorganized, and disconnected from reality. Generalized anxiety and eating disorders are not associated with schizophrenia. Schizophrenia is not characterized by depression.

REF:   Pg. 975

2. The usual age of onset for schizophrenia in men is

ANS:  B

The most common age of onset and diagnosis is between 15 and 25 years for men. Women are typically diagnosed between 25 and 35 years. Most persons first diagnosed with schizophrenia are between the ages of 15 and 54 years. The usual age of onset of schizophrenia occurs before the age of 25.

REF:   Pg. 975

3. Which manifestation is characteristic of the “positive” symptoms of schizophrenia?

ANS:  D

Positive symptoms include the psychotic dimension, or distortions in thought content (delusions) and perception (hallucinations), as well as the disorganization dimension, or disorganization in speech and behavior. Asociality is considered a negative symptom. Flat affect is considered to be a cognitive symptom. Lack of speech is not considered to be a positive symptom of schizophrenia.

REF:   Pg. 978

4. It is true that the “negative” symptoms of schizophrenia

ANS:  B

Negative symptoms of schizophrenia are thought to be associated with dopamine D₁ receptor activity in the brain. Negative symptoms can be more difficult to recognize than positive symptoms. Rambling speech and delusional thoughts are positive symptoms. The positive symptoms of schizophrenia are thought to result from excessive dopamine D₂ receptor activity in the brain.

REF:   Pg. 978