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Vestibular Hyporeactivity in Infants at Risk for SchizophreniaAssociation With Critical Developmental Disorders
Barbara Fish, MD;
Wilfrid J. Dixon, PhD
Arch Gen Psychiatry. 1978;35(8):963-971.
Abstract
Vestibular responses to caloric stimulation were measured from birth to age 2 years in ten infants born to schizophrenic mothers. This is part of a study of evolving neurointegrative disorders that may be associated with a genetic risk for schizophrenia. Transiently decreased vestibular responses coincided with several developmental disorders that were related to psychopathology at 10 years. Absent to decreased responses were associated with (1) a "pandevelopmental retardation" involving physical growth as well as postural-motor and visualmotor development, (2) an "abnormally quiet" state in the first month, and (3) failures of bimanual integration between 4 and 6 months. The transitory nature of the decreased nystagmus rules out the possibility of an organic lesion of the vestibular system. Rather, it suggests that some covert decrease in arousal accompanied those periods when central nervous system integration was disrupted.
Author Affiliations
From the Division of Child Psychiatry and Mental Retardation, Department of Psychiatry, and the Mental Retardation Research Center (Dr Fish), and the Department of Biomathematics and the Health Sciences Computing Facility (Dr Dixon), University of California at Los Angeles.
Footnotes
Accepted for publication July 19, 1976.
Reprint requests to Neuropsychiatric Institute, University of California at Los Angeles, 760 Westwood Plaza, Los Angeles, CA 90024 (Dr Fish).
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