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Updated: Aug 1, 2026

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Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
Published on: November 21, 2013
Informed consent and tardive dyskinesia. Long-term follow-up
I Kleinman1, D Schachter, J Jeffries
1Department of Psychiatry, Mount Sinai Hospital, Toronto, Ontario, Canada.
The Journal of Nervous and Mental Disease
|September 1, 1996
Summary
Informed consent significantly improves schizophrenic patients' knowledge of neuroleptic medication benefits and risks. This long-term study shows sustained understanding at two-year follow-up for both single-session and educational review groups.
Area of Science:
- Psychiatry
- Informed Consent
- Patient Education
Background:
- Informed consent is crucial for patient autonomy in treatment decisions.
- Understanding the long-term impact of informed consent on patients with schizophrenia is vital for effective care.
Purpose of the Study:
- To evaluate the long-term effects of the informed consent process on schizophrenic patients' knowledge of neuroleptic medication.
- To compare the impact of a single-session versus an educational review of informed consent materials.
Main Methods:
- Patients with schizophrenia received a baseline questionnaire and information on neuroleptic medication.
- Participants were reassessed at 4 weeks and randomly assigned to a single-session or educational review group.
- A 2-year follow-up assessment measured sustained knowledge of medication benefits and risks.
Main Results:
- Both single-session and educational review significantly enhanced patients' knowledge of neuroleptic medication's benefits and risks.
- The study provides the first 2-year follow-up data on informed consent for antipsychotic medication in schizophrenia.
Conclusions:
- The informed consent process effectively increases and sustains patient knowledge regarding antipsychotic medication.
- Educational review may offer additional benefits, though both methods show positive long-term impact.

