BISC 121Lg Lecture Notes - Lecture 6: Thomas Bayes, Prior Probability, Natural Selection
Document Summary
Modern psychologists believe our perception is based on our knowledge of. Lecture 6 environmental regularities: physical regularities- regularly occurring physical properties. Oblique effect- perceive vertical and horizontal orientations easier than obliue ones. Light-from-above assumption: semantic regularities- associations and characteristics we expect from the senses. 4 approaches: 1) hemholtz unconscious interference, 2) gestalt laws, 3) environmental regularities, 4) bayesian inference, 1,3,4 are top-down processing, 2 is bottom-up processing. Some neurons respond best to environmental regularities: more neurons respond to horizontal and vertical lines than oblique lines, natural selection. Experience-dependent plasticity- mechanism through which the structure of the brain is changed with experience: kitten experiment, greeble recognition (ffa trained to recognize greeble faces ) Movement helps us perceive things better than when they"re just still: lets you see things from different angles. 2 streams in the brain: what stream, where stream, discovered using ablation and studying people with brain damage.
