IRCT20191214045738N2 IRCT 2020-07-17 Tabriz University of Medical Sciences Effects of light therapy on mental fatigue induction in healthy subjects Effects of transcranial light therapy on physical and attentional performance after mental fatigue induction in healthy subjects 2020-07-20 anticipated 24 Complete https://irct.ir/trial/47210 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Health service research, Randomization description: Sampling method: In a convenience sampling method, a total of 24 healthy students, will be included from Tabriz University of medical sciences. The volunteers will be asked to complete an information questionnaire including their name, age, dominant hand, telephone number, and history of the neurological or psychological disease. Each eligible participant will be assigned a code. Random allocation: Simple random allocation strategy, using "random number table" was applied, To assign participants to the study groups. Then a table without a specific pattern or order will be used. From top to bottom, the letter A is assigned to the intervention group and the letter B to the sham group, respectively, Blinding description: Participants in the project are unaware of the intervention or the sham. N/A Mental fatigue. Intervention 1: Intervention group: Participants in the intervention group, will received light radiation by Near Infrared projector, with a specific wavelength of 850 nm, continuously and with a power of 60 mW / cm2 and an energy density of 4 J/cm2. The light will be irradiated for 10 minutes on 9th and 10th areas of the Broadman or the right preforontal cortex according to EEG 10-20 system. This area is involved in activities related to sustained attention. Intervention 2: Control group: while for the other half of the participants, ie. In the placebo group, the radiation is applied to the target area for only 5 seconds per minute and other steps are similar. 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