[Solved] When Ken is alone, he fantasizes about supermodels and masturbates. This type of behavior is called: A) nocturnal stimulation. B) autoerotic. C) sociosexual. D) sensual stimulation. Pacinian Corpuscles: Sensory receptors found deep in the skin and other tissues that detect pressure and vibration. Pressure: The force exerted by an object against a surface or the stress within substances influenced by external or internal forces. Flutter Stimuli: null Cerebellum: A region of the brain that plays an important role in motor control, coordination, and sensory integration.