PSY290H1 Lecture Notes - Retina, Postcentral Gyrus, Thalamus
Document Summary
How you know the world - lec 5 - oct. 8, 2013. Olfaction sense of emotions; how we"ve evolved beyond chemical detection. We use sense of taste & touch especially therefore emphasis on fingers (human touch) No emphasis on auditory & visual cortices (though they are main sensory systems) Midterm (in-class): mc, 4/5 definitions, short answers, essay (1hr) Audition only overview covered in lecture. More receptors, diversity in systems, types of organization leads to evolution of telencephalon. Receptors are in cochlea ( snail-like structure basalar membrane auditory nerve brain. Oversimplified pathway (there are many more intermediate ones, e. g. superior olives, lateral somethingsomething) usually don"t go directly from receptor--thalamus (2-3 more relays, usually) Cortical areas=most plastic areas of brain, along w/limbic system. Maps w/injury/reorganization go back to reorganize thalamus. Are complex networks involving plasticity, feedback networks, complex reorganizing processes** Small # receptors (7 types) memorize & associate w/precise functions.
