PS262 Lecture Notes - Lecture 6: Rapid Eye Movement Sleep, Retina, Binding Problem
Document Summary
Your perceptual system has a limited capacity for processing info. The visual system withdraws from some things in order to deal more effectively with others . One of the mechanisms for selecting certain things in the visual environment is visual scanning which is looking from one place to another. This scanning is necessary because there is only one place on the retina (the cone-rich fovea) that creates good detail vision. Stimulus salience refers to physical properties such as color, contrast, movement, and orientation that make a particular object or location conspicuous. When attention due to stimulus salience causes an involuntary shift of attention, this shift is called attentional capture. A saliency map is a map of a visual display that takes into account characteristics of the display that are associated with capturing attention. Scene schemas: an observer"s knowledge about what is contained in typical scenes. an observer"s attention is affected by knowledge of what is usually found in the scene.
