Improving Visual Field Deficits With Noninvasive Brain Stimulation

noninvasive current stimulation for 20 - 30 minutes stimulation on visual cortex (electrodes on surface of scalp, positioned O1 / O2 on EEG cap). 1mA max amplitude noise stimulation, frequencies from 100 Hz - 640 Hz.

Dynamic visual stimuli are presented on specific locations of the visual field. Participant holds fixation on center of screen during presentation of visual stimuli. Participants will be presented with multiple trials of a motion discrimination task. Training will be performed for 2 weeks (10 consecutive weekdays), 30 minutes each day.

20-30 minutes sham stimulation on visual cortex. Participants receive identical setup to real stimulation. The device provides a short ramp on period to simulate the feeling of real stimulation at the start but no current is delivered otherwise.

• Dynamic visual stimuli are presented on specific locations of the visual field. Participant holds fixation on center point within the VR headset during presentation of visual stimuli. Participants will be presented with multiple trials of a motion discrimination task. Training will be performed for 2 weeks (10 consecutive weekdays), 30 minutes each day.