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Transcranial Direct Current Stimulation Effects on Athletes' Cognitive Performance: An Exploratory Proof of Concept
Davimar M M Borducchi1, July Silveira Gomes1, Henrique Akiba1
1Clinical Neuroscience Laboratory, Department of Psychiatry, Federal University of São Paulo , São Paulo , Brazil.
Frontiers in Psychiatry
|December 15, 2016
Summary
Transcranial direct current stimulation (tDCS) significantly improved cognitive functions like attention and memory in professional athletes. This neuromodulation technique may offer a competitive edge, prompting ethical discussions in sports.
Area of Science:
- Neuroscience
- Sports Science
- Cognitive Psychology
Background:
- The 2016 Olympics highlighted elite athletic performance and doping scandals, sparking interest in factors differentiating top athletes.
- Discussions on enhancing athletic capabilities often overlook scientific interventions beyond traditional training.
- Neuromodulation techniques like tDCS offer a potential avenue for cognitive enhancement in athletes.
Purpose of the Study:
- To investigate the efficacy of transcranial direct current stimulation (tDCS) as a potential aid for professional athletes.
- To assess the impact of tDCS on cognitive performance and mood in athletes across different sports modalities.
Main Methods:
- A proof-of-concept trial involving ten professional athletes (judo, swimming, rhythmic gymnastics).
- Participants received anodal tDCS (2mA) on the left dorsolateral prefrontal cortex for 20 minutes daily over ten weekdays.
- Cognitive performance (attention, memory) and depression scores (Beck Depression Inventory) were measured.
Main Results:
- Significant improvements were observed in alternated, sustained, and divided attention.
- Memory scores showed significant enhancement following tDCS intervention.
- A notable decrease in Beck Depression Inventory scores was recorded in the non-clinical athlete population.
Conclusions:
- Preliminary findings suggest tDCS can positively impact cognitive functions relevant to athletic performance.
- tDCS sessions may confer competitive advantages to professional athletes.
- Further ethical considerations regarding neuromodulation in sports are recommended, balancing risks and opportunities.
