Evidence map›Paper›PMID 21216392›Full record

ArticleBiological psychiatry2011

Abnormalities of neuronal oscillations and temporal integration to low- and high-frequency auditory stimulation in schizophrenia.

Jordan P Hamm, Casey S Gilmore, Natalie A M Picchetti, Scott R Sponheim, Brett A Clementz

Open access · greenAbstract read
In one paragraph

Article in Biological psychiatry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 1 pooled it
5.3field-weighted citation impact, top 4% 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

73 citing papers in PubMed, 1 synthesis or guideline pooled it, 149 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Modafinil effects on middle-frequency oscillatory power during rule selection in schizophrenia.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2014
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  18. Perceptual Functioning.Current topics in behavioral neurosciences · 2023
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13 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

5 authors at 3 institutions in 1 country.

Jordan P HammDepartment of Psychology and Neuroscience, BioImaging Research Center, University of Georgia, Athens, Georgia 30602, USA.
Casey S Gilmore
Natalie A M Picchetti
Scott R Sponheim
Brett A Clementz
University of Georgia · USMinneapolis VA Health Care System · USUniversity of Minnesota · US

Funding

MEG STUDIES OF P50 SUPPRESSION IN SCHIZOPHRENIAR01MH057886 · NIMH · UNIVERSITY OF GEORGIA (UGA) · PI CLEMENTZ, BRETT A · 2000 to 2007
$1.1M
Aberrant Cortical Dynamics in SchizophreniaR24MH069675 · NIMH · UNIVERSITY OF MINNESOTA TWIN CITIES · PI SPONHEIM, SCOTT R · 2004 to 2006
$893k
Quantitative Modeling of Visual Perception Endophenotypes in SchizophreniaI01CX000227 · VA · MINNEAPOLIS VA MEDICAL CENTER · PI SPONHEIM, SCOTT R · 2011 to 2018
–
CSRD VA I01 CX000227NIMH NIH HHS MH57886NIMH NIH HHS R01 MH057886NIMH NIH HHS R24 MH069675NIMH NIH HHS R24MH069675
6 · The paper itself

Abstract

backgroundElectroencephalography and magnetoencephalography studies indicate among schizophrenia patients (SZ) abnormal, often reduced, entrained steady-state (aSSR) and transient (N100/M100) neural responses to auditory stimuli. We complement this literature by focusing analyses on auditory cortices, assessing a wide range of stimulation frequencies with long driving periods and evaluating relationships between aSSR and M100 reductions in SZ.

methodsSeventeen SZ and 17 healthy subjects (H) participated. Stimuli were 1500 msec binaural broadband noise sequences modulated at 5, 20, 40, 80, or 160 Hz. Magnetoencephalography data were collected and co-registered with structural magnetic resonance images. The aSSRs and M100s projected into brain space were analyzed as a function of hemisphere, stimulus density, and time.

resultsFor aSSR, SZ displayed weaker entrainment bilaterally at low (5-Hz) and high (80-Hz) modulation frequencies. To 40-Hz stimuli, SZ showed weaker entrainment only in right auditory cortex. For M100, while responses for H increased linearly with stimulus density, this effect was weaker or absent in SZ. A principal components analysis of SZ deficits identified low (5-Hz entrainment and M100) and high (40- to 80-Hz entrainment) frequency components. Discriminant analysis indicated that the low-frequency component uniquely differentiated SZ from H. The high-frequency component correlated with negative symptoms among SZ.

conclusionsThe SZ auditory cortices were unable to 1) generate healthy levels of theta and high gamma band (80-Hz) entrainment (aSSR), and 2) augment transient responses (M100s) to rapidly presented auditory information (an index of temporal integration). Only the latter was most apparent in left hemisphere and may reflect a prominent neurophysiological deficit in schizophrenia.

Indexed as

Brain MappingAcoustic StimulationAdultAnalysis of VarianceAuditory CortexBrainBrain WavesDiscriminant AnalysisEvoked Potentials, AuditoryFemaleFunctional LateralityHumansMagnetic Resonance ImagingMagnetoencephalographyMaleMiddle Aged

Identifiers

PMID21216392
PMCPMC3174270
OpenAlexW2006927561

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.