tDCS Processing Speed Training Project

 

This project examines whether combining High-Definition transcranial Direct-Current Stimulation (HD-tDCS) with processing speed training (PST) can improve cognitive functioning in individuals recovering from post-stroke aphasia. We target the left dorsolateral prefrontal cortex (DLPFC)—a region associated with processing speed, working memory, and cognitive control—using a 4×1 HD-tDCS montage while participants complete computerized PST tasks.

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The study uses both within-subject and between-subject comparisons to evaluate how neuromodulation influences processing-speed performance. Participants in the active tDCS group receive 10 sessions of HD-tDCS paired with PST, while the sham group receives the same PST without active stimulation. Behavioral pre- and post-tests allow us to determine whether stimulation enhances the effects of cognitive training.

 

Through this work, our long-term goal is to assess the feasibility and therapeutic potential of combining neuromodulation with behavioral rehabilitation strategies to improve cognitive outcomes and quality of life for people with aphasia.