The effect of tDCS on cognition (memory and attention) and QEEG indices (ß/?) in brain tumor patients undergoing radiotherapy

Evaluating the Impact of Transcranial Direct Current Stimulation (tDCS) on Cognitive Functions (Auditory and Visual Memory, and Sustained Attention) in Brain Tumor Patients Undergoing Radiotherapy

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20250310065009N1

Enrollment

Registered

2025-07-17

Start date

2025-06-02

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

brain tumor. Malignant neoplasm of brain, unspecified

Interventions

Intervention 1: Intervention group: Transcranial direct Current Stimulation (tDCS)-. Intervention 2: Control group: Placing the tDCS device on the patients head without stimulation.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients with brain tumors undergoing radiotherapy Informed consent of the patients to participate in the present study No prior exposure to similar intervention programs The patient must be right-handed

Exclusion criteria

Exclusion criteria: Second course of radiotherapy

Design outcomes

Primary

Measure	Time frame
Transcranial DCS (tDCS). Timepoint: 30 minutes a day for 20 sessions. Method of measurement: The anode electrode will be placed on the left and right supraorbital with direct current stimulation and the cathode on the opposite cerebellum with a current intensity of 2 mA.	—

Secondary

Measure	Time frame
Behavioral level (individuals' scores on memory and attention tasks). Timepoint: he subjects' scores on memory and attention tasks were measured once before the radiotherapy sessions and once after the session. Method of measurement: Patients are cognitively assessed using the Continuous Performance Test (CPT) and N-back cognitive tasks.;Electrophysiological level (quantitative electroencephalography index, teta and beta frequency bands). Timepoint: Measurements were taken once before radiotherapy sessions and once after the session. Method of measurement: The absolute power of the theta and beta frequency bands is calculated by NeuroGuide software.	—

Measure

Time frame

Behavioral level (individuals' scores on memory and attention tasks). Timepoint: he subjects' scores on memory and attention tasks were measured once before the radiotherapy sessions and once after the session. Method of measurement: Patients are cognitively assessed using the Continuous Performance Test (CPT) and N-back cognitive tasks.;Electrophysiological level (quantitative electroencephalography index, teta and beta frequency bands). Timepoint: Measurements were taken once before radiotherapy sessions and once after the session. Method of measurement: The absolute power of the theta and beta frequency bands is calculated by NeuroGuide software.

—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactLeila Halavi Anjar

Pardis Aras Jolfa

leilahalavi@tabrizu.ac.ir+98 41 3337 4921

Outcome results

None listed

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