PSYB51H3 Chapter 12: Chapter 12 Notes
Document Summary
Chapter 12: touch: touch is mechanical sensation from mechanical movement of skin, tactile is the movement, kinethesis: perception of posn/movement of limbs. Proprioception: perception mediated by kinesthetic and vestibular receptors: broader system of kinethesis, somatosensation: collective term for sensory sigs from body touch requires more action for us to sense it. e. g. pressure/vibration/temp: size of receptor field, rate of adaptation (fast vs. slow) fast-adapting(fa): burst of action potentials for onset/offset of stim, doesn"t respond when stim is static slow-adapting(sa): active in steady state of stim. fa i fibers, small rf junction of endings at www. notesolution. com: merkel cell neurite complex: specialized nerve ending epidermis and dermis. sa i fibers, small rf: ruffini endings: specialized nerve ending. Deeper in dermis: pacninian corpuscles: specialized nerve ending. fa i i fibers, large rf: four types of mechanoreceptors: fa i, fa i i, sa i, sa i i www. notesolution. com, response characteristics of 4 mechanoreceptor populations:
