Evidence map›Paper›PMID 23941660›Full record

ArticleBipolar disorders2013

Family history of psychosis moderates early auditory cortical response abnormalities in non-psychotic bipolar disorder.

Jordan P Hamm, Lauren E Ethridge, John R Shapiro, Godfrey D Pearlson, Carol A Tamminga, John A Sweeney, Matcheri S Keshavan, Gunvant K Thaker, Brett A Clementz

Open access · greenAbstract read
In one paragraph

Article in Bipolar disorders, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% of its field
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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
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  8. Cortical ensembles selective for context.Proceedings of the National Academy of Sciences of the United States of America · 2021
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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

9 authors at 5 institutions in 1 country.

Jordan P HammDepartment of Psychology, BioImaging Research Center, University of Georgia, Athens, GA, USA; Department of Neuroscience, BioImaging Research Center, University of Georgia, Athens, GA, USA.
Lauren E Ethridge
John R Shapiro
Godfrey D Pearlson
Carol A Tamminga
John A Sweeney
Matcheri S Keshavan
Gunvant K Thaker
Brett A Clementz
The University of Texas Southwestern Medical Center · USUniversity of Georgia · USBeth Israel Deaconess Medical Center · USHartford Financial Services (United States)University of Maryland, Baltimore · US

Funding

Bipolar & Schizophrenia Consortium for Parsing Intermediate PhenotypesR01MH077851 · NIMH · UT SOUTHWESTERN MEDICAL CENTER · PI TAMMINGA, CAROL A · 2007 to 2019
$7.8M
Bipolar & Schizophrenia Consortium for Parsing Intermediate PhenotypesR01MH077945 · NIMH · YALE UNIVERSITY · PI PEARLSON, GODFREY D · 2007 to 2019
$7.6M
Stability of Biotypes: a Longitudinal EvaluationR01MH078113 · NIMH · WAYNE STATE UNIVERSITY · PI KESHAVAN, MATCHERI S. · 2007 to 2019
$6.2M
Bipolar & Schizophrenia Consortium for Parsing Intermediate PhenotypesR01MH077862 · NIMH · UT SOUTHWESTERN MEDICAL CENTER · PI SWEENEY, JOHN A · 2007 to 2010
$3.1M
Neural Noise and Cognitive Control in SchizophreniaR01MH094172 · NIMH · UNIVERSITY OF GEORGIA · PI CLEMENTZ, BRETT A · 2011 to 2015
$1.8M
Neural mechanisms for antisaccade errors among schizophrenia familiesR01MH085485 · NIMH · UNIVERSITY OF GEORGIA · PI CLEMENTZ, BRETT A · 2009 to 2013
$1.4M
MEG STUDIES OF P50 SUPPRESSION IN SCHIZOPHRENIAR01MH057886 · NIMH · UNIVERSITY OF GEORGIA (UGA) · PI CLEMENTZ, BRETT A · 2000 to 2007
$1.1M
4/4-Psychosis and Affective Research Domains and Intermediate Phenotypes (PARDIP)R01MH096900 · NIMH · UNIVERSITY OF GEORGIA · PI CLEMENTZ, BRETT A · 2013 to 2015
$223k
NIMH NIH HHS MH077851NIMH NIH HHS MH077862NIMH NIH HHS MH077945NIMH NIH HHS MH078113NIMH NIH HHS MH085485NIMH NIH HHS R01 MH057886NIMH NIH HHS R01 MH077851NIMH NIH HHS R01 MH077862NIMH NIH HHS R01 MH077945NIMH NIH HHS R01 MH078113NIMH NIH HHS R01 MH085485NIMH NIH HHS R01 MH094172NIMH NIH HHS R01 MH096900
6 · The paper itself

Abstract

objectivesBipolar I disorder is a disabling illness affecting 1% of people worldwide. Family and twin studies suggest that psychotic bipolar disorder (BDP) represents a homogeneous subgroup with an etiology distinct from non-psychotic bipolar disorder (BDNP) and partially shared with schizophrenia. Studies of auditory electrophysiology [e.g., paired-stimulus and oddball measured with electroencephalography (EEG)] consistently report deviations in psychotic groups (schizophrenia, BDP), yet such studies comparing BDP and BDNP are sparse and, in some cases, conflicting. Auditory EEG responses are significantly reduced in unaffected relatives of psychosis patients, suggesting that they may relate to both psychosis liability and expression.

methodsWhile 64-sensor EEGs were recorded, age- and gender-matched samples of 70 BDP, 35 BDNP {20 with a family history of psychosis [BDNP(+)]}, and 70 psychiatrically healthy subjects were presented with typical auditory paired-stimuli and auditory oddball paradigms.

resultsOddball P3b reductions were present and indistinguishable across all patient groups. P2s to paired stimuli were abnormal only in BDP and BDNP(+). Conversely, N1 reductions to stimuli in both paradigms and P3a reductions were present in both BDP and BDNP(-) groups but were absent in BDNP(+).

conclusionsAlthough nearly all auditory neural response components studied were abnormal in BDP, BDNP abnormalities at early- and mid-latencies were moderated by family psychosis history. The relationship between psychosis expression, heritable psychosis risk, and neurophysiology within bipolar disorder, therefore, may be complex. Consideration of such clinical disease heterogeneity may be important for future investigations of the pathophysiology of major psychiatric disturbance.

Indexed as

FamilyAcoustic StimulationAdultAntidepressive AgentsAuditory CortexBipolar DisorderCase-Control StudiesDiscriminant AnalysisElectroencephalographyEvent-Related Potentials, P300FemaleHumansMalePrincipal Component AnalysisPsychotic DisordersAntidepressive AgentsbiomarkerelectroencephalographygatingN100oddballP200P300psychosis

Identifiers

PMID23941660
PMCPMC5551040
OpenAlexW2134581053

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.