Evidence map›Paper›PMID 29378522›Full record

ArticleJournal of neurodevelopmental disorders2018

Auditory repetition suppression alterations in relation to cognitive functioning in fragile X syndrome: a combined EEG and machine learning approach.

Inga Sophia Knoth, Tarek Lajnef, Simon Rigoulot, Karine Lacourse, Phetsamone Vannasing, Jacques L Michaud, Sébastien Jacquemont, Philippe Major, Karim Jerbi, Sarah Lippé

Open access · goldAbstract read
In one paragraph

Article in Journal of neurodevelopmental disorders, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
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  12. Development of Neural Response to Novel Sounds in Fragile X Syndrome: Potential Biomarkers.American journal on intellectual and developmental disabilities · 2020
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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

10 authors at 2 institutions in 1 country.

Inga Sophia KnothNeuroscience of Early Development (NED), 90 Avenue Vincent-D'indy, Montreal, QC, H2V 2S9, Canada. IngaSophia.Knoth@gmail.com.
Tarek LajnefDepartment of Psychology, Université de Montréal, 90 Avenue Vincent-D'indy, Montreal, QC, H2V 2S9, Canada.
Simon RigoulotNeuroscience of Early Development (NED), 90 Avenue Vincent-D'indy, Montreal, QC, H2V 2S9, Canada.
Karine LacourseResearch Center of the CHU Sainte-Justine Mother and Child University Hospital Center, 3175 Chemin Côte Ste-Catherine, Montreal, QC, H3T 1C5, Canada.
Phetsamone VannasingResearch Center of the CHU Sainte-Justine Mother and Child University Hospital Center, 3175 Chemin Côte Ste-Catherine, Montreal, QC, H3T 1C5, Canada.
Jacques L MichaudResearch Center of the CHU Sainte-Justine Mother and Child University Hospital Center, 3175 Chemin Côte Ste-Catherine, Montreal, QC, H3T 1C5, Canada.
Sébastien JacquemontResearch Center of the CHU Sainte-Justine Mother and Child University Hospital Center, 3175 Chemin Côte Ste-Catherine, Montreal, QC, H3T 1C5, Canada.
Philippe MajorResearch Center of the CHU Sainte-Justine Mother and Child University Hospital Center, 3175 Chemin Côte Ste-Catherine, Montreal, QC, H3T 1C5, Canada.
Karim JerbiDepartment of Psychology, Université de Montréal, 90 Avenue Vincent-D'indy, Montreal, QC, H2V 2S9, Canada.
Sarah LippéNeuroscience of Early Development (NED), 90 Avenue Vincent-D'indy, Montreal, QC, H2V 2S9, Canada.
Centre Hospitalier Universitaire Sainte-Justine · CAUniversité de Montréal · CA

Funding

Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada RGPIN-2015-04854Scottish Rite Charitable Foundation of Canada 12112
6 · The paper itself

Abstract

backgroundFragile X syndrome (FXS) is a neurodevelopmental genetic disorder causing cognitive and behavioural deficits. Repetition suppression (RS), a learning phenomenon in which stimulus repetitions result in diminished brain activity, has been found to be impaired in FXS. Alterations in RS have been associated with behavioural problems in FXS; however, relations between RS and intellectual functioning have not yet been elucidated.

methodsEEG was recorded in 14 FXS participants and 25 neurotypical controls during an auditory habituation paradigm using repeatedly presented pseudowords. Non-phased locked signal energy was compared across presentations and between groups using linear mixed models (LMMs) in order to investigate RS effects across repetitions and brain areas and a possible relation to non-verbal IQ (NVIQ) in FXS. In addition, we explored group differences according to NVIQ and we probed the feasibility of training a support vector machine to predict cognitive functioning levels across FXS participants based on single-trial RS features.

resultsLMM analyses showed that repetition effects differ between groups (FXS vs. controls) as well as with respect to NVIQ in FXS. When exploring group differences in RS patterns, we found that neurotypical controls revealed the expected pattern of RS between the first and second presentations of a pseudoword. More importantly, while FXS participants in the ≤ 42 NVIQ group showed no RS, the > 42 NVIQ group showed a delayed RS response after several presentations. Concordantly, single-trial estimates of repetition effects over the first four repetitions provided the highest decoding accuracies in the classification between the FXS participant groups.

conclusionElectrophysiological measures of repetition effects provide a non-invasive and unbiased measure of brain responses sensitive to cognitive functioning levels, which may be useful for clinical trials in FXS.

Indexed as

Adaptation, PhysiologicalCognitionAcoustic StimulationAdolescentAdultAuditory PerceptionBrainChildElectroencephalographyEvoked Potentials, AuditoryFemaleFragile X SyndromeHumansIntelligenceIntelligence TestsMachine LearningCognitionEEGFragile X syndromeHabituationIntellectual disabilityIQMachine learningRepetition suppression

Identifiers

PMID29378522
PMCPMC5789548
OpenAlexW2797815462

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.