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IRCT20230919059470N1 IRCT 2023-10-07 Hamedan University of Medical Sciences Investigating the effectiveness of Transcranial direct current stimulation (tDCS) on the working memory and narrative discourse of healthy elderly Investigating the effectiveness of Transcranial direct current stimulation (tDCS) on the working memory and narrative discourse of healthy elderly 2023-10-02 anticipated 36 Complete https://irct.ir/trial/72718 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Supportive, Randomization description: Each person will be placed in two test (A) or control (B) groups using the random block method. The division of people into the test group or the control group will be done using blocks of 4 and the random replacement method, as follows (where A represents the test person and B represents the control person) and the allocation sequence will be determined. ABBABABABAABABABBAABBBAABAABBAABABABAB The type of intervention based on the predetermined sequence is written inside the envelopes in the opaque package and the envelopes will be numbered in order. After having the necessary conditions and willingness to participate in the study, each person will receive an envelope and the researcher will act based on the content inside the envelope, Blinding description: The subjects of the study group are treated in the intervention process in each session by placing the anode electrode on the F3 area of ​​the brain and with an intensity of 2 milliampers. The cathode electrode is placed in the right upper orbital region of the person. In the control group, the electrodes are placed in the desired areas, but after 1 minute and after reaching the intensity of 1 milliamperes, the device is automatically cut off, but the person is not aware and the sham stimulation conditions continue. It should be noted that none of the participants will be informed about the type of real and sham stimulation session. N/A working memory and narrative discourse of healthy elderly. Intervention 1: Intervention group: 18 healthy elderly people are subjected to brain stimulation for 20 minutes and in 5 days with a transcranial brain stimulation device and at the same time they perform the N-back test with a computer. The intensity of the stimulation with the device is 2 milliamperes. Intervention 2: Control group: 18 healthy elderly people are subjected to brain stimulation for 20 minutes and in 5 days with a transcranial brain stimulation device and at the same time they perform the N-back test with a computer. When the intensity of 1 milliampere is reached, the device is cut off. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no further information
public Bahare rezai
Faculty of Rehabilitation Sciences, Hamadan University of Medical Sciences, Shahid Fahideh St., Hamadan
Hamadan Iran (Islamic Republic of) ۶۵۱۷۸۳۸۶۸۷ +98 81 3838 1571 rezaeibahareh@yahoo.com Hamedan University of Medical Sciences scientific Ali Moshtagh
Ramdasht
Roudsar Iran (Islamic Republic of) 4481889363 +98 13 4263 1318 Ali.moshtagh.96@gmail.com Hamedan University of Medical Sciences Iran (Islamic Republic of) Elderly people (60-85 years old) and Persian language should prevail. Based on the Edinburgh test, it should be dominant in right-handed people. Do not have irreparable visual or auditory sensory defects, that is, at a comfortable listening level (20 to 45 dB with hearing aids) and the vision can understand the message. The presence of a history of low vision and hearing loss is checked based on observation and interview with the patient's companions. If the visual and hearing impairment is to the extent that it cannot be compensated by auxiliary devices (glasses and hearing aids), the person will not be included in the study. The person's cognitive status and intelligence based on the MMSE test should be normal. (Score 24 and above.) Based on the examination of the medical record, they do not have a history of neurological and psychiatric diseases and speech and language. No dependence on alcohol and drugs. Not using drugs that affect the nervous system (such as antidepressants and sleeping pills) Absence of any type of obstacle for the operation of the tDCS device, such as the presence of certain metals 60 years 85 years Both Rehabilitation Rehabilitation Intervention group: 18 healthy elderly people are subjected to brain stimulation for 20 minutes and in 5 days with a transcranial brain stimulation device and at the same time they perform the N-back test with a computer. The intensity of the stimulation with the device is 2 milliamperes. Control group: 18 healthy elderly people are subjected to brain stimulation for 20 minutes and in 5 days with a transcranial brain stimulation device and at the same time they perform the N-back test with a computer. When the intensity of 1 milliampere is reached, the device is cut off. Working memory. Timepoint: at the beginning of the study (before the start of the intervention) and after the end of the study (after the last day of the intervention) and 1 month after the end of the intervention. Method of measurement: N-back test. Narrative discourse. Timepoint: at the beginning of the study (before the start of the intervention) and after the end of the study (after the last day of the intervention) and 1 month after the end of the intervention. Method of measurement: Persian narrative discourse evaluation test. Hamedan University of Medical Sciences Approved 2023-08-15 Ethics Committee of Hamadan University of Medical Sciences 5th floor, Central Headquarters of University of Medical Sciences, Shahid Fahmideh Blvd., Hamadan, Hamadan Hamadan Hamadan Iran (Islamic Republic of)