GE CLST 73A Lecture Notes - Lecture 10: Interaural Time Difference, Somatosensory System, Sensory Cortex
23 Feb 2017
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Document Summary
A creation of the brain based on inputs. Inflammation processing in the brain - need to transform it into action potentials. Receiving info from the world, convert to action potentials. Take info about physical world and translate it into a form processed by the brain. Sensory receptor organs: organs specialized to detect a certain stimulus. Retina (visual) changes in response to light. We can only detect energies or substances that we have receptors for. Animals have receptors for many different stimuli. Electrical (rays), magnetic fields (birds), infrared radiation (snakes) Their world is very different from ours. Even for senses that we what receptors for, we can only detect stimuli within a certain range. 1) transduction: converting energy from one form to another (senses to action potential) 2) initiation of a generator (receptor) potential - local change in potential caused by transduction (like an epsp) 3) when generator potential reaches threshold, an action potential is generated.
