Evidence map›Paper›PMID 38328519›Full record

ArticleFrontiers in psychiatry2023

The effect of montages of transcranial alternating current stimulation on occipital responses-a sham-controlled pilot study.

Jingying Wang, Kai Yip Choi, Benjamin Thompson, Henry Ho Lung Chan, Allen Ming Yan Cheong

Abstract read
In one paragraph

Article in Frontiers in psychiatry, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. 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

5 authors.

Jingying Wang *School of Optometry, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China.
Kai Yip Choi *School of Optometry, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China.
Benjamin ThompsonSchool of Optometry and Vision Science, University of Waterloo, Waterloo, ON, Canada.
Henry Ho Lung ChanSchool of Optometry, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China.
Allen Ming Yan CheongSchool of Optometry, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Transcranial alternative current stimulation (tACS) refers to a promising non-invasive technique to improve brain functions. However, owing to various stimulation parameters in the literature, optimization of the stimulation is warranted. In this study, the authors aimed to compare the effect of tACS electrode montages on occipital responses. Methods: In three montage sessions (i.e., Oz-Cz, Oz-cheek, and sham), 10 healthy young adults participated, receiving 20-min 2-mA alpha-tACS. Pattern-reversal visual evoked potentials (VEPs) were measured before tACS (T0), immediately after (T20), and 20 min (T40) after tACS. Normalized changes in time-domain features (i.e., N75, P100 amplitudes, and P100 latency) and frequency-domain features [i.e., power spectral density in alpha (PSDα) and beta (PSDβ) bands] were evaluated. Results: In contrast to our hypothesis, the occipital response decreased immediately (T20) after receiving the 20-min tACS in all montages in terms of P100 amplitude ( Conclusion: This study revealed an immediate inhibitory effect of tACS, regardless of the montages. This inhibitory effect sustained in the Oz-Cz montage but faded out in other montages after 20 min.

Indexed as

montagenon-invasive brain stimulationoccipital excitabilitytranscranial alternating current stimulationtranscranial electrical stimulationvisual evoked potentials

Identifiers

PMID38328519
PMCPMC10849049

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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.