Brain zaps may sharpen focus – but only for Space-Like tasks

This study tested whether a gentle electrical current applied to the scalp (transcranial electrical stimulation) can improve performance on a challenging computer task that simulates docking a spacecraft. 44 healthy adults with advanced degrees completed the task while receiving either real or fake stimulation. Researchers measured speed, accuracy, and overall success during and up to 48 hours after stimulation. The goal was to understand if and how brain stimulation affects complex cognitive and motor skills.