Evidence map›Paper›PMID 32776173›Full record

Trial reportExperimental brain research2020

Visual motion perception improvements following direct current stimulation over V5 are dependent on initial performance.

Di Wu, Chenxi Li, Na Liu, Pengbo Xu, Wei Xiao

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Experimental brain research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.2field-weighted citation impact, top 20% 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

5 citing papers in PubMed, 17 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Article
  5. 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 at 1 institution in 1 country.

Di WuDepartment of Medical Psychology, Air Force Medical University, Xi'an, China.
Chenxi LiScholl of Nursing, Yueyang Vocational Technical College, Yueyang, China.
Na LiuDepartment of Nursing, Air Force Medical University, Xi'an, China.
Pengbo XuDepartment of Medical Psychology, Air Force Medical University, Xi'an, China.
Wei XiaoDepartment of Medical Psychology, Air Force Medical University, Xi'an, China. 42958732@qq.com.
Air Force Medical University · CN

Funding

the Major Project of Medicine Science and Technology No.AWS13J003
6 · The paper itself

Abstract

Transcranial direct current stimulation (tDCS) can improve visual perception. However, the effect of tDCS on visual perception is largely variable, possibly due to individual differences in initial performance. The goal of the present study was to evaluate the dependency of visual motion perception improvements on initial performance. Twenty-eight observers were randomly divided into two groups. Anodal tDCS and sham stimulation were separately applied to V5 (1.5 mA, 20 min), while observers performed a coherent motion direction identification task. The results showed that compared to sham stimulation, anodal tDCS induced a significant improvement in motion perception that lasted at least 20 min. In addition, the degree of improvement was dependent on initial performance, with a greater improvement magnitude observed for those with poorer initial performance. These results may have implications for understanding the nature of the stimulation rule and for the use of a customised stimulation protocol to enhance tDCS efficiency in practical applications.

Indexed as

Motion PerceptionTranscranial Direct Current StimulationHumansIndividualityVisual PerceptionImprovement magnitudeInitial performanceMotion perceptiontDCSV5

Identifiers

PMID32776173
OpenAlexW3047907947

What OpenQuestion holds

Textmetadata
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.