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Eye movements and psychiatric disease.

Peter Trillenberg1, Rebekka Lencer, Wolfgang Heide

  • 1Department of Neurology, University Hospital of Schleswig-Holstein, Campus Luebeck, Luebeck, Germany. trillenberg_p@neuro.mu-luebeck.de

Current Opinion in Neurology
|April 20, 2004
PubMed
Summary

Eye movement dysfunction, or eye tracking, is linked to genetic predisposition in psychiatric disorders like schizophrenia. Nicotine may improve smooth pursuit eye movements in patients, while neuroleptic drugs show varied effects.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Genetics

Background:

  • Recent research explores eye movement dysfunction in psychiatric patients.
  • Studies investigate genetic factors and pharmacological influences on these dysfunctions.

Purpose of the Study:

  • To review studies on eye movement dysfunction in psychiatric diseases.
  • To examine genetic predisposition and pharmacological manipulation effects.

Main Methods:

  • Analysis of studies on smooth pursuit eye movements (eye tracking).
  • Investigation of unaffected relatives of psychiatric patients.
  • Association studies with gene polymorphisms related to dopamine metabolism.
  • Evaluation of nicotine and neuroleptic drug effects on eye movements.

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Main Results:

  • Eye tracking dysfunction is observed in relatives of schizophrenic patients, suggesting genetic predisposition.
  • Prevalence of eye tracking dysfunction is similar in relatives of schizophrenia and affective disorder patients, questioning specificity.
  • Gene polymorphisms affecting dopamine metabolism are linked to schizophrenia predisposition.
  • Nicotine improved smooth pursuit eye movements in schizophrenic patients, possibly due to enhanced attention.
  • Atypical neuroleptics (risperidone, olanzapine) did not significantly alter saccadic tasks in schizophrenic patients.

Conclusions:

  • Eye movements serve as a valuable tool for assessing pharmacological effects in patients.
  • Eye movement analysis aids in uncovering genetic traits associated with psychiatric diseases.