Evidence map›Paper›PMID 29321584›Full record

ArticleScientific reports2018

The critical role of phase difference in theta oscillation between bilateral parietal cortices for visuospatial working memory.

Philip Tseng, Kai-Chi Iu, Chi-Hung Juan

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Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

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

  1. Pooled it
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  4. Article
  5. Variable E-field properties of dual-site tACS with phase lags.Imaging neuroscience (Cambridge, Mass.) · 2026
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  19. Neuromodulatory effects of transcranial electrical stimulation on emotion regulation in internalizing psychopathologies.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2023
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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Philip TsengGraduate Institute of Humanities in Medicine, Taipei Medical University, Taipei City, Taiwan. tsengphilip@gmail.com.
Kai-Chi IuInstitute of Cognitive Neuroscience, National Central University, Taoyuan City, Taiwan.
Chi-Hung JuanInstitute of Cognitive Neuroscience, National Central University, Taoyuan City, Taiwan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Visual working memory (VWM) refers to people's ability to maintain and manipulate visual information on line. Its capacity varies between individuals, and neuroimaging studies have suggested a link between one's VWM capacity and theta power in the parietal cortex. However, it is unclear how the parietal cortices communicate with each other in order to support VWM processing. In two experiments we employed transcranial alternate current stimulation (tACS) to use frequency-specific (6 Hz) alternating current to modulate theta oscillation between the left and right parietal cortex with either in-phase (0° difference, Exp 1), anti-phase (180° difference, Exp 2), or sham sinusoidal current stimulation. In Experiment 1, in-phase theta tACS induced an improved VWM performance, but only in low-performers, whereas high-performers suffered a marginally-significant VWM impairment. In Experiment 2, anti-phase theta tACS did not help the low-performers, but significantly impaired high-performers' VWM capacity. These results not only provide causal evidence for theta oscillation in VWM processing, they also highlight the intricate interaction between tACS and individual differences-where the same protocol that enhances low-performers' VWM can backfire for the high-performers. We propose that signal complexity via coherent timing and phase synchronization within the bilateral parietal network is crucial for successful VWM functioning.

Indexed as

Memory, Short-TermTheta RhythmVisual PerceptionAdultAnalysis of VarianceElectroencephalographyFemaleHumansMaleParietal LobePhotic StimulationYoung Adult

Identifiers

PMID29321584
PMCPMC5762658

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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.