Introduction: Patients with mild Traumatic Brain Injury (mTBI) constitute a significant proportion of brain injury cases. The mTBI often leads to cognitive deficits, including impaired selective attention, which can significantly impact daily functioning. The purpose of the present study was to examine the effectiveness of transcranial Direct Current Stimulation (tDCS) on selective attention in patients with mTBI. Method: The current study employed a single-blind randomized controlled trial and quasi-experimental design to examine the effectiveness of tDCS on selective attention in mTBI patients. The participants were randomly assigned to active, sham, and control groups. Fifteen female patients diagnosed with mTBI were recruited via convenience sampling. To evaluate participants\\\\\\\' selective attention, a computerized version of CWST was used for pre- and post-intervention assessments. The intervention protocol included 20 minutes of 1.5 mA tDCS stimulation applied to the left dlPFC for 10 sessions. The data were analyzed using one-way ANCOVA in SPSS-24. Results: Findings indicated a notable improvement in selective attention within the active tDCS group; however, the differences between groups did not reach statistical significance (P > 0.05). Conclusion: These preliminary findings suggest a potential role for tDCS in improving selective attention in patients with mTBI, warranting further investigation with larger sample sizes.

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