Final answer:
Synesthesia involves the mixing of the senses, such as seeing colors when hearing music. It shows the brain’s complex sensory processing, with signals converted into electrical impulses.
Step-by-step explanation:
Synesthesia is the mixing of the senses, where stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway. People with synesthesia might see colors when they hear music or taste flavors when they see certain shapes, an experience that connects different types of sensory input in unusual ways. This phenomenon illustrates the interconnected nature of sensory processing in the brain, where all types of senses undergo sensory transduction by converting a stimulus into an electrical signal via the peripheral nervous system or the nervous system.