Neuron Variation

Some neurons fire in response to a specific sensory stimulus. Others fire in response to simultaneously occurring sights and sounds, sounds and touches, sight and touches, sounds and touches, and so on. They are found throughout the cortex and in the superior colliculus (midbrain region densely packed with multisensory neurons)as well. (Macknik, Stephen L. PhD and Susana Martinez-Conde PhD. Sleights of Mind. P 116-120. NY:Henry Holt and Company, 2010.)