PSYCO104 Lecture Notes - Lecture 5: Absolute Threshold, Myelin, Parallax

• School: University of Alberta
• Department: Psychology
• Course: PSYCO104
• Professor: Clayton Dickson

Document Summary

The detection of simple properties of stimuli. The identification of more complex properties of stimuli. Sensation: the registration of physical stimuli. Raw experience of an event or stimulus. Early processing of stimuli by the nervous system. Smelling an odor, hearing a noise, seeing a light: transduction. Olfaction (smelling) & gustation (tasting: somatosensation touch. Nociception pain: audition hearing. Thermoception (temperature), nocioception (pain): primary sense in humans: vision pressure reception, etc. Transduction: first element of sensory experience: Conversion of energy from one form to another (light, sound waves, chemical composition into neural impulses) Specialized for sensing and responding to chemicals, sound, light, displacement. Odor, taste, touch, self motion, sound, sight: odor transduction. Inhalation brings in airborne odorant molecules chemicals. They bind to the mucous lining which contains receptor cells. Activation is sent to the olfactory bulb in the brain: taste transduction. Dissolved molecules come in contact with receptor cells lining the tongue and palate.