Biopsych Chapter 18 part 1

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Questions and Answers

Which of the following is an example of a positive symptom of schizophrenia?

Diminished emotional expression

Unchanging and unresponsive facial expression

Avoidance of eye contact

Belief in supernatural forces (correct)

What is an example of a negative symptom of schizophrenia?

Belief in supernatural forces

Hearing imaginary voices

Reacting with inappropriate emotional response

Talking in rhymes (correct)

Which symptom of schizophrenia involves reacting with an inappropriate emotional response to positive or negative events?

Inappropriate affect (correct)

Delusions of grandeur

Disorganized speech of thought

Hallucinations

What represents an excess of typical function in schizophrenia?

Imaginary voices Signup and view all the answers

Which symptom of schizophrenia involves peculiar associations among ideas?

Disorganized speech of thought Signup and view all the answers

What is an example of diminished emotional expression in schizophrenia?

Unchanging and unresponsive facial expression Signup and view all the answers

What is the primary difference between deep brain stimulation and repetitive Transcranial Magnetic Stimulation (rTMS)?

rTMS is non-invasive, while deep brain stimulation is invasive Signup and view all the answers

What is the role of the anterior cingulate gyrus in the brain?

All of the above Signup and view all the answers

What is a potential risk associated with Deep Brain Stimulation?

Brain hemorrhage Signup and view all the answers

What is the main reason why brain stimulation works to treat depression?

It activates areas that depression has decreased the functions of Signup and view all the answers

What is the Monoamine Theory of depression primarily based on?

Underperformance of serotonergic and noradrenergic synapses Signup and view all the answers

What is a challenge of the Monoamine Theory of depression?

Monoamine agonists are not effective in the treatment of most people with depression Signup and view all the answers

Which factor is not considered a leading cause of schizophrenia according to the text?

Genetic mutations Signup and view all the answers

What is the focus of the neurodevelopmental theory of schizophrenia?

Disruptions in early brain development Signup and view all the answers

What is the potential use of functional connectivity changes in schizophrenia research?

To predict treatment response to antipsychotic medications Signup and view all the answers

What is the focus of the study of schizophrenia-related genes?

Both brain development and gene-related disorders Signup and view all the answers

What led to the restriction of psychedelic research in humans in the 1970s?

Societal subcultures associations Signup and view all the answers

What is the role of the mesocorticolimbic dopamine pathway in schizophrenia?

It is associated with neuropathological changes Signup and view all the answers

Which class of antidepressants inhibits the activity of monoamine oxidase?

Monoamine-Oxidase Inhibitors Signup and view all the answers

What percentage of clinically depressed patients show improvement with antidepressants?

50% Signup and view all the answers

Which antidepressant drug was developed for tuberculosis and marketed in 1957?

Iproniazid Signup and view all the answers

Which gender is twice as likely to be diagnosed with depression, especially during adolescence?

Females Signup and view all the answers

Which type of brain stimulation has been used to treat depression when other treatments are ineffective?

Repetitive transcranial magnetic stimulation Signup and view all the answers

Which group has a higher likelihood of suffering chronic and debilitating cases of depression?

Non-Caucasians Signup and view all the answers

Which of the following best describes avolition?

A reduction or absence of motivation, hindering the ability to start or finish tasks Signup and view all the answers

What marked the first major breakthrough in antipsychotic drugs?

The accidental discovery of chlorpromazine in the 1950s Signup and view all the answers

What is the primary effect of atypical antipsychotics like clozapine?

Effectively treating schizophrenia without strongly binding to D2 receptors Signup and view all the answers

What is the dopamine hypothesis regarding schizophrenia symptoms?

An imbalance in dopamine levels contributes to symptoms of schizophrenia, including delusions and hallucinations Signup and view all the answers

Why is reserpine no longer used in treating schizophrenia?

Due to its adverse effects on blood pressure Signup and view all the answers

What is catatonia in individuals with schizophrenia?

Involves remaining motionless in awkward positions for extended periods Signup and view all the answers

Study Notes

Understanding Schizophrenia and Antipsychotic Drugs

Avolition refers to a reduction or absence of motivation, hindering the ability to start or finish tasks.
Catatonia involves remaining motionless in awkward positions for extended periods, often seen in individuals with schizophrenia.
Diagnosis of schizophrenia spectrum disorder requires the recurrence of any two symptoms for over a month, with one being delusions, hallucinations, or disorganized thought.
Antipsychotic drugs are used to treat schizophrenia and other psychotic symptoms in various disorders, aiding in the reduction of psychosis.
The accidental discovery of chlorpromazine in the 1950s marked the first major breakthrough in antipsychotic drugs.
Chlorpromazine alleviates symptoms of schizophrenia, calming agitated patients and activating emotionally blunted ones.
Reserpine, derived from the Indian snake root plant, was initially used to treat schizophrenia but is no longer in use due to its adverse effects on blood pressure.
The dopamine hypothesis suggests that an imbalance in dopamine levels contributes to symptoms of schizophrenia, including delusions and hallucinations.
Antipsychotic drugs affect dopamine levels and have a high affinity for dopamine receptors, particularly the D2 receptor.
Atypical antipsychotics, such as clozapine, are effective against schizophrenia without binding strongly to D2 receptors.
Research on hallucinogenic drugs focuses on their effects in modeling schizophrenia symptoms and their potential use in treating psychiatric disorders.
The two lines of study for psychedelic drugs involve modeling schizophrenia symptoms and exploring their potential for treating psychiatric disorders.

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Description

Test your knowledge about schizophrenia and antipsychotic drugs with this informative quiz. Explore topics such as symptoms, diagnosis criteria, historical breakthroughs in drug discovery, and the mechanisms of action of antipsychotic medications. Gain insights into the treatment of schizophrenia and related psychotic symptoms.