Synesthesia, the neurological condition in which one sense involuntarily triggers another, produces measurable changes in the body’s autonomic nervous system, not just unusual perceptual experiences.

The autonomic nervous system (ANS) has two branches. The parasympathetic nervous system (PNS) branch slows the body down. PNS dominance elicits a relaxation response, whereas activating the ...

The locus coeruleus is a region of the brain that is instrumental in coordinating our mental processing and is the primary source of noradrenaline in the brain, which acts to regulate arousal states ...

When we listen to a moving piece of music or feel the gentle pulse of a haptic vibration, our bodies react before we consciously register the feeling. The heart may quicken, palms may sweat resulting ...