Psychotic disorders
1. Psychotic disorders such as schizophrenia involve both positive and negative symptoms. Explain what positive symptoms are. What does it mean that the symptom is “positive”? Does that mean that it is “good” to have? Explain what negative symptoms are. What does it mean that the symptom is “negative”? Give an example of a positive symptom and explain what it is. Give an example of a negative symptom and explain what it is.
2. Generally, what do we know about the connection between psychotic disorders such as schizophrenia and violence or crime? Is there a connection? Are there any comorbid disorders that worsen or lessen the connection to crime or violence?
3. Generally, what do we know about treatment for schizophrenia? How do we typically treat psychotic disorders? Can we cure schizophrenia, or only treat the symptoms? What is the prognosis for recovery?
Sample Solution
Positive symptoms of schizophrenia
Positive symptoms of schizophrenia are those that appear to be present in addition to normal perception and thought. They can involve:
- Hallucinations: Seeing, hearing, smelling, tasting, or feeling things that are not there. For example, hearing voices or seeing visions.
- Delusions: False beliefs that are held despite evidence to the contrary. For example, believing that someone is spying on you or that you have special powers.
- Disorganized thinking and speech: Difficulty organizing your thoughts and communicating them clearly. This can lead to rambling, incoherent speech, or sudden changes in topic.
- Disorganized behavior: Acting in unpredictable or unusual ways. For example, dressing inappropriately, making strange gestures, or talking to yourself.
- Alogia: Poverty of speech. This can involve speaking very little or speaking in short, clipped sentences.
- Affective flattening: Reduced emotional expression. This can make the person appear withdrawn or unemotional.
- Anhedonia: Inability to experience pleasure. This can lead to a loss of interest in activities that the person used to enjoy.
- Asociality: Withdrawal from social interaction. This can involve avoiding contact with family and friends, or having difficulty forming new relationships.
- Amotivation: Lack of motivation. This can make it difficult for the person to start or complete tasks, or to take care of themselves.
- The risk of violence is highest among people with schizophrenia who are also experiencing psychotic symptoms, such as delusions or hallucinations. However, it is important to note that the vast majority of people with schizophrenia are not violent.
- There are a number of comorbid disorders that can worsen the connection between psychotic disorders and violence. These include substance abuse, antisocial personality disorder, and traumatic brain injury.