THE INFLUENCE OF THE MONOAMINERGIC SYSTEM ON THE ELECTRICAL ACTIVITY OF THE VISUAL CORTEX

The visual cortex is one of the most studied regions of the brain due to its central role in sensory perception. Its activity, measurable through electrical recordings such as electroencephalography (EEG), is not only determined by visual input but also shaped by neuromodulatory influences. Among these, the monoaminergic system—comprising dopamine, serotonin, and norepinephrine—plays a crucial role in regulating excitability, oscillatory patterns, and functional connectivity of the visual cortex. This paper reviews the influence of monoaminergic neurotransmitters on the electrical activity of the visual cortex, focusing on electrophysiological findings, experimental evidence, and clinical implications.