PHIL 120W Lecture Notes - Lecture 8: Purkinje Images, Visual Angle, Statistical Power
22 Dec 2016
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Searching for hard-to-find targets: camouflage (when targets do not have unique features) or the opposite concept: to stand out. Where(cid:495)s waldo, hard find search target; does not have a unique colour and size. Targets with a unique feature will pop out; colour difference lead to quicker response. Targets without a unique feature do not pop out. Serial search is looking at one object at a time and taking it off the list whereas parallel search is when you find the unique feature. Researchers find that when you have a pop-out target, it does not matter how many distractor targets there are, when looking for a harder target, the number of distractors matter (set-side effect) Exhaustive search: serial inspection of entire array occurs on target-absent trials. & serial self-terminating search: serial inspection of array terminated when target found. Glueing features together: feature map of colour, orientation and size map of locations (spotlight) with all the features are integrated.
