PSYC 2200 Lecture Notes - Lecture 13: Sensory Neuron, Olfactory Bulb, Frontal Lobe
13 Oct 2020
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Document Summary
Most living creatures have sensory receptors that transduce 5 basic senses- light. Sensory receptors provide the interface between the world and our perception of the world molecules, tactile pressure and temperature) into internal neural energy (signals) (vision), sound waves (hearing), pressure/temperature (touch), smell (odor molecules), taste. Odorous substances dissolved in air or water in the nasal cavity. Substances in contact with the tongue or other taste receptors. Receptors transform/transduce external physical energy (light, sound-waves, olfactory. Need sense other than vision to know where they are, use whiskers. Can discriminate fine grain differences using whiskers, performing very complex sensory transduction function. The brain in a jar is a thought experiment (derived from rene descartes) based on the fact that we rely totally on a translator (brain) to perceive reality. The updated theory says it is impossible to ever prove that the stimuli we are encoding are real, and not delivered electronically to our brain through a supercomputer interface.
