Symptoms of Schizophrenia

Atypical antipsychotics block both dopamine-2 receptors and serotonin-2A receptors

Symptoms of schizophrenia:

Positive symptoms: the presence of symptoms that are normally absent

  • Examples of positive symptoms include: hallucinations, disorganized speech, delusions, memory disturbances, and impaired attention.
  • Positive symptoms associated with schizophrenia are improved by blocking dopamine-2 receptors.

Negative symptoms: the absence of thoughts or behaviors that are normally present

  • Examples include: depression, social withdrawal, apathy, anhedonia, and decreased facial expression.
  • Negative symptoms associated with schizophrenia are improved by blocking serotonin-2A receptors.

 

Symptoms of a manic mood:  sleeplessness, agitation, distractibility, and buying sprees.

Symptoms of depression:  persistent feeling of sadness, fatigue, inability to concentration, and a loss of interest in activities previously thought to be enjoyable.

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