Treatment of COVID-19 Post-acute Cognitive Impairment Sequelae With tDCS

Electrical stimulation is delivered by the Soterix device, consisting of a one-size-fits-all, transcranial direct current stimulation headset with square electrodes. The anode is positioned over the left prefrontal cortex, and the cathode over the right prefrontal cortex. Current strenght is set at 2mA for 20 minutes, daily for 5 continuous days (with a 2-day pause) for 4 weeks. Cognitive training consists of a series of tasks performed in the BrainHQ app, which aim to stimulate the impaired cognitive domains in people with PASC. The cognitive training sessions are performed concomitantly to the tDCS sessions.

Sham electrical stimulation is delivered by the Soterix device, consisting of a one-size-fits-all, transcranial direct current stimulation headset with square electrodes. The anode is positioned over the left prefrontal cortex, and the cathode over the right prefrontal cortex. The sham protocol consists of a fade-in and fade-out phases of 1mA for 45 seconds, followed by a silent period in between for the remaining session time. Cognitive training consists of a series of tasks performed in the BrainHQ app, which aim to stimulate the impaired cognitive domains in people with PASC. The cognitive training sessions are performed concomitantly to the tDCS sessions.