PSYC 212 Lecture Notes - Lecture 18: Lamellar Corpuscle, Receptive Field, Proprioception

• School: McGill University
• Department: Psychology
• Course: PSYC 212
• Professor: Mathieu Roy

Document Summary

Psyc 212 lecture 18 march 27th. What is touch: touch is what allows us to perceive our own bodies in relation to the external world. We can also say that touch is the largest sense organ in our body. Somatosensation: e(cid:448)erythi(cid:374)g that"s touch-related sensory signals from the skin, muscles, tendons, joints, and internal receptors. Kinesthesia: perception of the position and movement of our limbs in space. Proprioception: perception mediated by kinesthetic and internal receptors (e. g. stomach) it"s a little (cid:271)it larger tha(cid:374) ki(cid:374)esthesia (cid:894)e(cid:448)erythi(cid:374)g that"s in our bodies versus our limbs). Touch physiology: the real term for touch receptors is mechanoreceptors, which are embedded in the outer layer (epidermis) and underlying layer (dermis) of the skin. These receptors transduce mechanical energy into neural impulses. There are multiple types and subtypes of touch receptors (this course is going to focus on four types). The different functions are closely tied to what type of e(cid:374)di(cid:374)g they"re connected with.