Effect of brain stimulation on processing speed

Effect of transcranial alternative current stimulation on cognitive processing speed in healthy adults

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20250217064757N1

Enrollment

Registered

2025-05-17

Start date

2025-04-09

Completion date

Unknown

Last updated

2025-07-21

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

Conditions

Healthy older adults.

Interventions

Intervention 1: Intervention group: Transcranial alternative current stimulation (tACS) with IAF (Individual alpha frequency) +1 Hz - 2 mA - Oz:Mastoid montage. Intervention 2: Control group: Transcra

Eligibility

Sex/Gender

All

Age

45 Years to No maximum

Inclusion criteria

Inclusion criteria: No history of psychiatric and neurologic disorders No serious medical conditions or being pregnant in women Able to read and write in Persian

Exclusion criteria

Exclusion criteria: Contraindications to tES (metal in the head or pacemaker, ...) A score of 25 or below in The Montreal Cognitive Assessment (MoCA)

Design outcomes

Primary

Measure	Time frame
Speed of Processing in UFOV test. Timepoint: just before and after intervention. Method of measurement: Useful field of view test.	—

Secondary

Measure	Time frame
Alpha peak frequency in EEG. Timepoint: just before and after intervention. Method of measurement: EEG Amplifier.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactHamed Zare

University of Tehran

zareh@ut.ac.ir+98 936 784 6677

Outcome results

None listed

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