Evidence map›Paper›PMID 34245340›Full record

ArticleExperimental brain research2021

Effects of binaural and monaural beat stimulation on attention and EEG.

Hessel Engelbregt, Marinda Barmentlo, Daniel Keeser, Oliver Pogarell, Jan Berend Deijen

Abstract read
In one paragraph

Article in Experimental brain research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing 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

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

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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

5 authors.

Hessel EngelbregtHersencentrum Mental Health Institute, Amsterdam, the Netherlands.
Marinda BarmentloHersencentrum Mental Health Institute, Amsterdam, the Netherlands.
Daniel KeeserDepartment of Psychiatry and Psychotherapy, Ludwig-Maximilians-University of Munich, Munich, Germany.
Oliver PogarellDepartment of Psychiatry and Psychotherapy, Ludwig-Maximilians-University of Munich, Munich, Germany.
Jan Berend DeijenHersencentrum Mental Health Institute, Amsterdam, the Netherlands. j.b.deijen@vu.nl.ORCID http://orcid.org/0000-0002-9864-6234

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nowadays a popular technique to improve mood and cognition is auditory beat stimulation (ABS), which is thought to induce a frequency-following response of brainwaves. The main types of ABS are monaural beats (MB) and binaural beats (BB). BB involves the presentation of a specific frequency to one ear and another frequency to the other ear which may induce neural entrainment. A difference between the frequencies of 40 Hz is assumed to improve cognition. The present study examined the effect of 40 Hz binaural beats (BB) and monaural beats (MB) on attention and electroencephalography (EEG). A total of 25 first-year psychology students (11 males, 14 females) performed a Flanker task while EEG was recorded during the 5 min-presentation of pink noise (PN), MB and BB. With respect to attention, as measured by the Flanker task, the number of false responses in the BB condition was smaller than that in the PN condition while the number of false responses in the MB condition was larger as compared to the PN condition. As there was no association of BB with a consistent increase in absolute 40 or 45 Hz power compared to PN or MB, EEG recordings could not confirm the hypothesized neural entrainment in the brain. Overall, the current findings show that listening to 40 Hz BB improves attention but do not show the occurrence of neural entrainment. Future research is recommended to include a larger sample, to use a broader cognitive test battery and to present auditory beats with a longer duration.

Indexed as

Brain WavesElectroencephalographyAcoustic StimulationAttentionAuditory PerceptionFemaleHumansMaleAttentionAuditory beat stimulationBinaural beatsEEGFlanker taskMonaural beats

Identifiers

PMID34245340
PMCPMC8448709

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Registered trials

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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.