The goal of this research is to find ways to maximize the benefits of antipsychotic medications for cognition.

Hypothesis: Risperidone and olanzapine will show greater benefits than conventional medications on assessments of social cognition, particularly affect perception and social perception.

Ages Eligible for Study:  18 Years   -   60 Years,  Genders Eligible for Study:  Both

Criteria

Inclusion Criteria:

• Diagnosed with schizophrenia disorder by a DSM IV.
• Competent to sign informed consent
• No history of poor response to Risperdal and Zyprexa
• No organic brain disease

Exclusion Criteria:

• Mental retardation or any chronic medical illness which results in the patient not being appropriate for a switch to Risperdal or Zyprexa.