The effect of transcranial direct current stimulation (tDCS) on cognition in people with Parkinson

The effects of transcranial direct current stimulation (tDCS) on attention, working memory , response inhibition and reaction time in patients with Parkinson's disease

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20220618055211N1

Enrollment

Registered

2022-06-24

Start date

2022-08-21

Completion date

Unknown

Last updated

2022-06-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Parkinson's disease. Parkinson's disease

Interventions

Intervention 1: Intervention group: Cognitive rehabilitation program in addition to Transcranial direct current stimulation (tDCS) (20 minute 2 milliampere current applied through the anode electrode

Eligibility

Sex/Gender

All

Age

50 Years to 70 Years

Inclusion criteria

Inclusion criteria: Have a definitive diagnosis of Parkinson by specialist doctor Fill the consent form Age between 50-70 Mild cognitive disorder (Montreal Cognitive Assessment (MOCA) score between 20-26)

Exclusion criteria

Exclusion criteria: Don't complete the intervention or assessment Change in medicines or any change in medical intervention. Getting worse in symptoms. Having skin problems on scalp. patient with dementia patient with Parkinson due to substance abuse. patient with sleep disorders. patient with depression.

Design outcomes

Primary

Measure	Time frame
Score obtained for attention in the Match to Sample Visual Search test. Timepoint: Measurement of attention at the beginning of the study , after 3 weeks and 1 months after the intervention. Method of measurement: Match to Sample Visual Search test.;Score obtained for response inhibition in the Stop Signal Task test. Timepoint: Measurement of response inhibition at the beginning of the study , after 3 weeks and 1 months after the intervention. Method of measurement: Stop Signal Task test.;Score obtained for working memory in the Spatial Span test. Timepoint: Measurement of working memory at the beginning of the study , after 3 weeks and 1 months after the intervention. Method of measurement: Spatial Span test.;Score obtained for reaction time in the Reaction time test. Timepoint: Measurement of reaction time at the beginning of the study , after 3 weeks and 1 months after the intervention. Method of measurement: Reaction time test.	—

Measure

Time frame

Score obtained for attention in the Match to Sample Visual Search test. Timepoint: Measurement of attention at the beginning of the study , after 3 weeks and 1 months after the intervention. Method of measurement: Match to Sample Visual Search test.;Score obtained for response inhibition in the Stop Signal Task test. Timepoint: Measurement of response inhibition at the beginning of the study , after 3 weeks and 1 months after the intervention. Method of measurement: Stop Signal Task test.;Score obtained for working memory in the Spatial Span test. Timepoint: Measurement of working memory at the beginning of the study , after 3 weeks and 1 months after the intervention. Method of measurement: Spatial Span test.;Score obtained for reaction time in the Reaction time test. Timepoint: Measurement of reaction time at the beginning of the study , after 3 weeks and 1 months after the intervention. Method of measurement: Reaction time test.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactElahe Saeidi

University of social welfare and rehabilitation sciences

el.saeidi@uswr.ac.ir+98 31 3682 0256

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026