Evidence map›Paper›PMID 18701089›Full record

ArticleBiological psychiatry2008

Abnormal auditory N100 amplitude: a heritable endophenotype in first-degree relatives of schizophrenia probands.

Bruce I Turetsky, Tiffany A Greenwood, Ann Olincy, Allen D Radant, David L Braff, Kristin S Cadenhead, Dorcas J Dobie, Robert Freedman, Michael F Green, Raquel E Gur and 13 more

Abstract read
In one paragraph

Article in Biological psychiatry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

65 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  19. Magnetoencephalography for Schizophrenia.Neuroimaging clinics of North America · 2020
    Review
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5 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

23 authors.

Bruce I TuretskyDepartment of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. turetsky@upenn.edu
Tiffany A Greenwood
Ann Olincy
Allen D Radant
David L Braff
Kristin S Cadenhead
Dorcas J Dobie
Robert Freedman
Michael F Green
Raquel E Gur
Ruben C Gur
Gregory A Light
James Mintz
Keith H Nuechterlein
Nicholas J Schork
Larry J Seidman
Larry J Siever
Jeremy M Silverman
William S Stone
Neal R Swerdlow
Debby W Tsuang
Ming T Tsuang
Monica E Calkins

Funding

Theta and Gamma Oscillations in Cortical MicrocircuitsP50MH064045 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI GUR, RAQUEL E · 2001 to 2010
$21.6M
The Genetics of Endophenotypes and SchizophreniaR01MH065571 · NIMH · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BRAFF, DAVID L. · 2003 to 2013
$7.0M
The Genetics of Endophenotypes and SchizophreniaR01MH065578 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI GUR, RAQUEL E · 2003 to 2013
$4.2M
The Genetics of Endophenotypes and SchizophreniaR01MH065554 · NIMH · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI SIEVER, LARRY J · 2003 to 2013
$4.1M
Genetics of Endophenotypes and SchizophreniaR01MH065558 · NIMH · UNIVERSITY OF WASHINGTON · PI TSUANG, DEBBY WEN · 2003 to 2013
$3.7M
The Genetics of Endophenotypes and SchizophreniaR01MH065707 · NIMH · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GREEN, MICHAEL F. · 2003 to 2013
$3.6M
EARLY VISUAL PROCESSING IN SCHIZOPHRENIAR01MH043292 · NIMH · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GREEN, MICHAEL F. · 1996 to 2010
$3.5M
The Genetics of Endophenotypes and SchizophreniaR01MH065562 · NIMH · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI SEIDMAN, LARRY J · 2003 to 2007
$2.6M
The Genetics of Endophenotypes and SchizophreniaR01MH065588 · NIMH · UNIVERSITY OF COLORADO DENVER · PI OLINCY, ANN · 2003 to 2007
$2.2M
Pathway(s) From Genes to Functional Deficits of Schizophrenia PatientsR01MH079777 · NIMH · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI LIGHT, GREGORY A · 2007 to 2010
$1.4M
4/4-A Genomic Approach to SchizophreniaR01MH084071 · NIMH · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BRAFF, DAVID L. · 2009 to 2012
$223k
EARLY VISUAL PROCESSING IN SCHIZOPHRENIAR29MH043292 · NIMH · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GREEN, MICHAEL F · 1988 to 1992
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NIMH NIH HHS MH064045NIMH NIH HHS MH43292NIMH NIH HHS MH79777NIMH NIH HHS P50 MH064045NIMH NIH HHS R01 MH043292NIMH NIH HHS R01 MH065554NIMH NIH HHS R01-MH065554NIMH NIH HHS R01 MH065558NIMH NIH HHS R01 MH065562NIMH NIH HHS R01-MH065562NIMH NIH HHS R01 MH065571NIMH NIH HHS R01-MH065571NIMH NIH HHS R01 MH065578NIMH NIH HHS R01 MH065588NIMH NIH HHS R01 MH065707NIMH NIH HHS R01 MH079777NIMH NIH HHS R01 MH084071NIMH NIH HHS R01-MH65558NIMH NIH HHS R01-MH65578NIMH NIH HHS R01-MH65588NIMH NIH HHS R01-MH65707NIMH NIH HHS R29 MH043292
6 · The paper itself

Abstract

backgroundN100 evoked potential amplitude and gating abnormalities have been widely observed in schizophrenia patients. However, previous studies have been inconclusive as to whether similar deficits are present in unaffected family members. The Consortium on the Genetics of Schizophrenia (COGS) is a multisite National Institute of Mental Health (NIMH) initiative examining neurocognitive and neurophysiological measures as endophenotypes for genetic studies of schizophrenia. We report initial results from the COGS dataset of auditory N100 amplitude and gating as candidate endophenotypes.

methodsEvoked potential data were acquired from 142 schizophrenia probands, 373 unaffected first-degree relatives, and 221 community comparison subjects (CCS), using an auditory paired-click stimulation paradigm. Amplitude of the N100 response to each click and the click 2/click 1 ratio were dependent variables. Heritability was estimated based on kinships using Solar v.2.1.2. Group differences were examined after subjects were categorized as either "broad" or "narrow," based on the presence (broad) or absence (narrow) of nonpsychotic psychiatric comorbidity.

resultsHeritability estimates were .40 and .29 for click1 and click2 amplitudes and .22 for the ratio. Broad and narrow patients both had impaired click 1 amplitudes. Broad relatives, but not narrow relatives, exhibited similar impairments. There were no group differences for either click 2 amplitude or the gating ratio.

conclusionsN100 amplitude is a heritable measure that is abnormal in patients and a subset of relatives for whom psychiatric comorbidity may be a genetically associated phenotype. Auditory N100 gating, although heritable, is less viable as a schizophrenia endophenotype.

Indexed as

FamilyAcoustic StimulationAdolescentAdultCase-Control StudiesElectroencephalographyEnvironmentEvoked Potentials, AuditoryFemaleHumansMaleMiddle AgedPhenotypePsychiatric Status Rating ScalesSchizophreniaYoung Adult

Identifiers

PMID18701089
PMCPMC2653714

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.