PSYC 2700 Chapter 4: Lecture 4 chapter 4 part 1.docx

• School: Carleton University
• Department: Psychology
• Course: PSYC 2700
• Professor: Chris Herdman

Document Summary

Direction of visual attention can be separated from direction of gaze (eyes: endogenous: internal/intentional moving of gaze, exogenous: drawn by external cue (when moving gaze) they grab our attention. When there is a dot on the left and right, it looks like the line enters from both sides. Spotlight metaphor: visual attention as a spotlight , spotlight focused (endo or exo) on locations in space. Spotlight facilitates processing of information at the attended location. Draw attention to potentially important events in space: endogenous cues. Place attention according to expectancy: object-based. Attention is placed on objects: within-object processing is more efficient (faster, more accurate) than across- object processing. Lavie and driver (1966: line (object) study, faster to stimuli on same object (line) Why object-based attention: major goal of vision is to identify objects. Visual attention is both space-based and object-based: space-based: orients processing to locations. Exogenously or endogenously: object-based: orients processing to objects.