Evidence map›Paper›PMID 25868936›Full record

ArticleSchizophrenia research2015

Stimulus train duration but not attention moderates γ-band entrainment abnormalities in schizophrenia.

Jordan P Hamm, Anastasia M Bobilev, Lauren K Hayrynen, Matthew E Hudgens-Haney, William T Oliver, David A Parker, Jennifer E McDowell, Peter A Buckley, Brett A Clementz

Open access · greenAbstract read
In one paragraph

Article in Schizophrenia research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Neural network dynamics underlying gamma synchronization deficits in schizophrenia.Progress in neuro-psychopharmacology & biological psychiatry · 2021
    Article
  9. Article
  10. A distributed frontotemporal network underlies gamma-band synchronization impairments in schizophrenia patients.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2020
    Article
  11. A roadmap for development of neuro-oscillations as translational biomarkers for treatment development in neuropsychopharmacology.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2020
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
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 2 institutions in 1 country.

Jordan P HammDepartment of Psychology and Neuroscience, BioImaging Research Center, University of Georgia, Athens, GA, United States.
Anastasia M BobilevDepartment of Psychology and Neuroscience, BioImaging Research Center, University of Georgia, Athens, GA, United States.
Lauren K HayrynenDepartment of Psychology and Neuroscience, BioImaging Research Center, University of Georgia, Athens, GA, United States.
Matthew E Hudgens-HaneyDepartment of Psychology and Neuroscience, BioImaging Research Center, University of Georgia, Athens, GA, United States.
William T OliverDepartment of Psychology and Neuroscience, BioImaging Research Center, University of Georgia, Athens, GA, United States.
David A ParkerDepartment of Psychology and Neuroscience, BioImaging Research Center, University of Georgia, Athens, GA, United States.
Jennifer E McDowellDepartment of Psychology and Neuroscience, BioImaging Research Center, University of Georgia, Athens, GA, United States.
Peter A BuckleyDepartment of Psychiatry, Georgia Reagents University, Medical College of Georgia, Augusta, GA, United States.
Brett A ClementzDepartment of Psychology and Neuroscience, BioImaging Research Center, University of Georgia, Athens, GA, United States. Electronic address: clementz@uga.edu.
University of Georgia · USAugusta University · US

Funding

Neural Noise and Cognitive Control in SchizophreniaR01MH094172 · NIMH · UNIVERSITY OF GEORGIA · PI CLEMENTZ, BRETT A · 2011 to 2015
$1.8M
MEG STUDIES OF P50 SUPPRESSION IN SCHIZOPHRENIAR01MH057886 · NIMH · UNIVERSITY OF GEORGIA (UGA) · PI CLEMENTZ, BRETT A · 2000 to 2007
$1.1M
NIMH NIH HHS MH094172NIMH NIH HHS R01 MH057886NIMH NIH HHS R01 MH094172
6 · The paper itself

Abstract

Electroencephalographic (EEG) studies of auditory steady-state responses (aSSRs) non-invasively probe gamma-band (40-Hz) oscillatory capacity in sensory cortex with high signal-to-noise ratio. Consistent reports of reduced 40-Hz aSSRs in persons with schizophrenia (SZ) indicate its potential as an efficient biomarker for the disease, but studies have been limited to passive or indirect listening contexts with stereotypically short (500ms) stimulus trains. An inability to modulate sensorineural processing in accord with behavioral goals or within the sensory environmental context may represent a fundamental deficit in SZ, but whether and how this deficit relates to reduced aSSRs is unknown. We systematically varied stimulus duration and attentional contexts to further mature the 40-Hz aSSR as biomarker for future translational or mechanistic studies. Eighteen SZ and 18 healthy subjects (H) were presented binaural pure-tones with or without sinusoidal amplitude modulation at 40-Hz. Stimulus duration (500-ms or 1500-ms) and attention (via a button press task) were varied across 4 separate blocks. Evoked potentials recorded with dense-array EEGs were analyzed in the time-frequency domain. SZ displayed reduced 40-Hz aSSRs to typical stimulation parameters, replicating previous findings. In H, aSSRs were reduced when stimuli were presented in longer trains and were slightly enhanced by attention. Only the former modulation was impaired in SZ and correlated with sensory discrimination performance. Thus, gamma-band aSSRs are modulated by both attentional and stimulus duration contexts, but only modulations related to physical stimulus properties are abnormal in SZ, supporting its status as a biomarker of psychotic perceptual disturbance involving non-attentional sensori-cortical circuits.

Indexed as

Acoustic StimulationAdultAttention Deficit Disorder with HyperactivityAuditory PerceptionBrain MappingElectroencephalographyEvoked Potentials, AuditoryFemaleHumansMaleMiddle AgedPrincipal Component AnalysisPsychoacousticsReaction TimeSchizophreniaTime FactorsAttentionAuditoryElectroencephalographyGammaSteady-state

Identifiers

PMID25868936
PMCPMC5538018
OpenAlexW2108848566

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.