PSYB51H3 Lecture Notes - Lecture 11: Perilymph, Angular Velocity, Saccule
Document Summary
Touch: mechanical displacements and other physical impacts on the skin. Somatosensation: a collective term for sensory signals from the body. The brain factors out the sensation of the pen, to determine what"s being poked with it. Receptors: cutaneous rabbit illusion: tapping arm at different point, 2 separate locations stimulated multiple times in quick succession feels like a rabbit, hopping across the skin between the 2 locations. Investigated with fmri: middle location equally activated as stimulated locations in the brain, we assume a prior that movements are rather slow, than fast, biasing our perception of the location of the taps. Tactile receptors: mechanoreceptors respond to mechanical stimulation or pressure: meissner corpuscles (fa i, skin slip; low-frequency vibration (3-40hz, ex. Receptors in joints react when joint is bent to an extreme angle: proprioceptive illusion. After vibration on tendon, the participant feels like nose is growing.
