BCS 153 Study Guide - Final Guide: Pattern Recognition, Episodic Memory, Semantic Memory

• School: University of Rochester
• Department: Brain and Cognitive Sciences
• Course: BCS 153
• Professor: Yang

Document Summary

The mental representations we form of categories are called concepts. Objective measure of psychological similarity between input and exemplars/prototypes. Pythagorean distance of each dot pair in the prototype and exemplar is calculated. Experiment 1a: exemplar and prototype models predict different patterns of similarity gradients. Prototypes: higher distortion level, higher rating of difference by participants. Learning of category from distribution of exemplars. If you show them a new moderately-distorted exemplar, they will be similarly willing to call that a member of the category. If people learn a category using the prototype model (people categorize assuming there exists a prototype), they will be much more willing to call the prototype a member of the category than they are another moderately-distorted exemplar. But figure out what this actually means!!!!!! We abstract information from all the exemplars to form a prototype. Higher ratings of category goodness surrounding prototypes, lower ratings of category goodness for non-prototypes.