PSYC 221 Study Guide - Midterm Guide: Positron Emission Tomography, Necker Cube, Neuroplasticity
17 Feb 2016
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Stage 2: mid 1970s computational analysis, cognitive science. Stage 3: mid 1980s neuropsychology, neurophysiology, imaging techniques available. Every time the number of equally likely outcomes doubles, the number. If an event has 2 likely outcomes, it will provide 1 bit on info of bits increases by 1. Information theory: the amount of information provided by a given message is proportional to the probability that that particular message will occur. Replying to how are you with i"m so stressed out i have an exam is much more informative that fine thanks because it is less likely to occur. The less likely it is, the more information it conveys. Early tests of information theory: hick & hyman. Hick measured the time it took participants to react appropriately to the occurrence of one of a set of possible signals 10 lights in a circle and the responses were delivered by the participants pressing keys.
