PSYC 212 Lecture Notes - Lecture 15: Simple Features, Statics

• School: McGill University
• Department: Psychology
• Course: PSYC 212
• Professor: Mathieu Roy

Document Summary

2 pathways to detect stimuli = *not take lot of time to process global image. Contribute info about distribution of features across a scene & gist of scene. Permit recognition of 1 or very few objects at a time. *throughout process = dynamic interaction b/w non-selective & selective. Through scene guidance from initial non-selective pathway. *not need much attention = understand & recognize scene to guide attention - scene guidance. Ex: natural vs urban scene in <19 ms or < 50s for specific. Ex: not use object to infer scene but use scene to guide. Features of object bind together to be perceived & identified. Average & distribution of properties ex: size/orientation/color over a set if. = computes ensemble statistics compute scene gist & layout very quickly. Ex: rapidly not perceive individual fish but perceive as group of fish while knowing orientation/color. Get general sense of scene before perceiving particular details of fish vs slower to find smallest fish.