PSYB57H3 Chapter Notes - Chapter 1: Computer Data Storage, Ethology, Problem Solving
Document Summary
First stage from late 1950s to early 1960s: rapid progression via methods of traditional psychophysics and experimental psychology. Second stage by mid 1970s: computational analysis and arrival of cognitive neuroscience. Third stage by mid 1980s: evidence from neuropsychology and animal neurophysiology, allowed us to observe brain in action. Information theory: the information provided by a particular message is inversely related to the probability of its occurrence: the less likely it is, the more information it conveys. Hick (1952): measured the time it to participants to react appropriately to the occurrence of one of a set of possible signals. Discovered the more information a signal provides, the more time it takes a subject to produce the appropriate response. Hyman (1953): asked participants to make an appropriate verbal response to a varying number of lights. The response became faster as a signal"s probability increased and slower as it decreased. Takes time for signals to flow through.
