Article

The visual system has the most complex circuitry of all the sensory systems and
it also possesses the ability to undergo induced and spontaneous neuroplastic
changes. Most of what we know about the functional organization of the visual
system is derived from animal experiments or by correlating circumscribed
anatomical lesions in patients and their visual perceptual deficits or
dysfunctions. However, in the past years, significant achievements have been made
in characterizing visual information processing in the human using non-invasive
neurophysiological techniques, such as electrical stimulation of the brain.
Transcranial direct (tDCS) and alternating current stimulation (tACS) applied
through the skull was shown to directly modulate the excitability of the motor
and visual cortices in human subjects. This review article focuses on these
stimulation methods and summarizes the latest results with regard to the
application of these method over the visual areas in healthy subjects and
clinical populations.

Langue : ANGLAIS