Can 8 months of daily tDCS application slow the cognitive decline in Alzheimer's disease? A case study.

This case study presents a patient with early-onset Alzheimers disease, who applied transcranial direct current stimulation (tDCS) daily for 8 consecutive months. This was a much higher frequency than previous tDCS studies. Neuropsychological assessments were conducted before the first tDCS session, after 5 months and after 8 months. After 8 months, the patient's immediate recall improved with 39%, whereas delayed recall improved 23%. Overall, the results revealed that patient's cognitive functions were stabilized. There may be slight possibility that tDCS could slow the cognitive decline in Alzheimers disease. This should be investigated in clinical trials.