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Lecture

Attention - Oct 24th.

2 Pages
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Department
Psychology
Course Code
PSYC 330
Professor
Richard Wright

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Attention – oct 24 th AFTER MIDTERM PART 1 – Covert orienting (no body movements) .. invisible PART 2 – studying covert orienting with location cueing PART 3 – voluntary and reflexive attention shifts PART 4 – how broadly (and narrowly) can we distribute PART 6 – PART 1: OVERT AND COVERT ORIENTING - when something is overt, you can notice it. It is visible. – but covert orienting is something you can view, its like peripheral vision. Think about this when you play sports, you want to have your peripheral vision attending all around you, as well as driving a car. Covert Orienting – why not just move our eyes? Attention shifts are faster, the eye movement that we most commonly make are saccadic eye movements and we can only make 4 in a minute or something Visual processing is suspended briefly when we move our eyes (15-20ms) Frozen frame when our eyes are in motion. Its far more efficient to shift our attention without making an eye movement First studying in the 1800’s – Herman Von Helmholtz. (richard wrights scientific hero) .. so many things for perception, he tends not to get credit cause it was so long ago. He was the kind of professor, in order to make lectures more interesting, he would try to do a test of something a couple days before. - attention orienting, he built a box. To see if he could keep his eyes on something while noticing something else. (the spark) .. the card is in the visible pin hole, and theres a - the yellow circle is imaginary. It was only visible for the time the inside of the box was illuminated. - What he found was that the letters were most visible where he shifted his attention, NOT THE CENTER - He concluded that we have two different focal points, 1. Where our eyes are focused the ocular focus, and 2. Where our attention is focused the attentional focus. – things are CLEARER in our attentional focus. This study is replicated, on the computer. Focal point in the center. PART 2: LOCATION CUEING This kind of studying stopped cause of BEHAVIOURISM. Using location cues in the 1960’s, the simple tasks tho really began in the 70’s. - auditory location cueing. This study shows that in 1960 people were already using location cues. - Visual location cueing, - examples of location cueing in the 60’s Developed a location cueing task – Micheal P
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