Cited by 38Schizophrenia research and treatmentMaternal Mental Health During Pregnancy and PostpartumPsychoanalysis and Psychopathology Research

Diminished cerebral inhibition in neonates associated with risk factors for schizophrenia: parental psychosis, maternal depression, and nicotine use

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Hunter, S. K., Kisley, M. A., McCarthy, L., Freedman, R., Ross, R. G.·2011·Schizophrenia Bulletin

Abstract

Diminished inhibitory gating of cerebral auditory evoked responses is transmitted in families with psychoses as an endophenotype related to the genetic risk for these illnesses. To assess whether the endophenotype is already expressed in infants of parents with psychotic illness and to assess effects of other known risk factors for schizophrenia, ie, maternal cigarette smoking and depression, inhibitory gating of cerebral auditory evoked responses was evaluated by comparing the P1 evoked responses to the first and second of paired auditory stimuli. Cerebral evoked responses were recorded during active sleep from 22 infants with a parent diagnosed with a psychotic illness and 129 infants with parents with no such history. Of these infants, 25 were prenatally exposed to nicotine (16 from the comparison group and 9 from the group with parental psychosis). Mothers of 35 infants had diagnoses of major depressive disorder. Parental psychosis (P = .032) and exposure to maternal smoking (P = .012) both resulted in diminished inhibitory gating in infant offspring. Compared to infants of mothers who did not smoke and who had neither parental psychosis nor maternal depression, diminished inhibitory gating was observed in infants with parental psychosis (P = .027) and in infants with maternal depression (P = .049). Diminished inhibitory gating of auditory evoked response in infants who have risk factors for schizophrenia mirrors reports of its familial transmission in adults. The results further indicate that the phenotypic expression of familial genetic and environmental risks for psychosis is already manifest very early in development.

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Authors
Hunter, S. K., Kisley, M. A., McCarthy, L., Freedman, R., & Ross, R. G.
Affiliations
  • University of Colorado Denver (US)
  • University of Colorado Colorado Springs (US)
  • Denver Health Medical Center (US)
Corresponding author
Hunter, S. K.
Venue
Schizophrenia Bulletin
Published
2010-04-19
Volume
37
Issue
6
Pages
1200-1208
ISSN
  • 0586-7614 (ISSN-L)
  • 1745-1701
OpenAlex
W2129730344
Cited by
38
References
47
Citations by year
2025: 1 · 2021: 5 · 2020: 4 · 2019: 5 · 2018: 2 · 2017: 3 · 2016: 1 · 2015: 6 · 2014: 1 · 2013: 7 · 2012: 2
FWCI
2.19
Type
journal article
Language
en
Open access
Locations
  • Schizophrenia Bulletin (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (MH-068582, P50MH086383, MH056539, MH086383, P50MH068582)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Maternal Mental Health During Pregnancy and Postpartum
  • Social Sciences › Psychology › Clinical Psychology › Psychoanalysis and Psychopathology Research
Keywords
schizophrenia risk factors, endophenotypes
MeSH terms
Adult, Child Development, Depressive Disorder, Major, Major Depressive Disorder, Electroencephalography, Evoked Potentials, Auditory, Female, Humans, Infant, Inhibition, Psychological, Male, Mothers, Psychotic Disorders, Risk Factors, Schizophrenia, Sleep, Tobacco Use Disorder

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