Efeito terapêutico da fotobiomodulação transcraniana para aumento de performance mental em acadêmicos de uma faculdade do Tocantins

Transcranial photobiomodulation has been investigated as a non-invasive strategy with the potential to modulate cognitive functions, including attention, focus, and concentration. This study aimed to analyze the potential effects of transcranial photobiomodulation on mental performance—specifically focus and concentration—among nursing students at Afya Porto Nacional. It was an experimental, quantitative study involving eight students, divided equally into experimental and control groups. Performance related to focus and concentration was assessed using the "Focus Shift" test, administered before and after sessions over a four-day period. Data were subjected to descriptive and inferential analysis, including normality testing via the Shapiro-Wilk test and analysis of repeated measures. The results showed minor fluctuations in Focus Shift scores, with no statistically significant difference between the pre- and post-intervention measurements in the experimental group (p=0.695). However, in subjective evaluations, all participants in the experimental group reported improved focus-a favorable perception that was not reflected by a statistically significant improvement in objective measures. It is concluded that, under the conditions investigated, it was not possible to demonstrate a statistically significant effect of transcranial photobiomodulation on focus and concentration. The small sample size, the short follow-up period, and the heterogeneity of the conditions self-reported by the participants represent limitations that underscore the need for further research using larger samples and standardized protocols.