Evidence map›Paper›PMID 40261398›Full record

ArticleExperimental brain research2025

Effects of transcranial direct current stimulation over the posterior parietal cortex on tactile spatial discrimination.

Taiga Hiraga, Kei Saito, Sho Kojima, Hideaki Onishi

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Article in Experimental brain research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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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

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Taiga HiragaGraduate School of Health and Welfare, Niigata University of Health and Welfare, Niigata, Japan. hpm23016@nuhw.ac.jp.
Kei SaitoDepartment of Physical Therapy, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, Niigata, 950-3198, Japan.
Sho KojimaDepartment of Physical Therapy, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, Niigata, 950-3198, Japan.
Hideaki OnishiDepartment of Physical Therapy, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, Niigata, 950-3198, Japan.

Funding

Grant-in-Aid for Scientific research (A) grant number 19H0109Grant-in Aid for Scientific Research (C) grant number 23K10490
6 · The paper itself

Abstract

The posterior parietal cortex (PPC) plays an important role in discriminating tactile spatial information. Dual-hemisphere transcranial direct current stimulation (tDCS) is a noninvasive and powerful method that can alter cortical excitability. Therefore, the effect of dual-hemisphere tDCS over the PPC on tactile spatial discrimination performance was investigated using the right index finger of 25 participants with normal neurology. The grating orientation discrimination task was performed before, during, and immediately after delivering dual-hemisphere tDCS or unilateral-hemisphere tDCS over the PPC. For dual-hemisphere tDCS, anodal tDCS was applied to the right PPC and cathodal tDCS to the left PPC. Results showed that the effect of dual-hemisphere tDCS and anodal tDCS over the PPC on tactile discrimination performance was significantly higher than sham stimulation. Furthermore, a significant negative correlation was observed between the pre-stimulation tactile discrimination performance and the change in tactile discrimination performance. In conclusion, the stimulatory effect of dual-hemisphere and anodal tDCS over the PPC on tactile discrimination of the right index finger was greater than that of sham stimulation. The effect of both stimulation regimes was associated with baseline tactile discrimination performance.

Indexed as

Discrimination, PsychologicalParietal LobeSpace PerceptionTouchTouch PerceptionTranscranial Direct Current StimulationAdultFemaleFingersFunctional LateralityHumansMaleYoung AdultDual-hemisphere transcranial direct current stimulationGrating orientation discrimination taskPosterior parietal cortexTranscranial direct current stimulation

Identifiers

PMID40261398

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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.