1/31/2024 0 Comments Spotlife ffect definition![]() So, what is selective attention in this context? ![]() Selective attention is a fact oft-used by magicians (see the psychology of magic, especially part 2 cognitive illusions). Indeed, even if we’re looking directly at something, and when we don’t expect to see it, we’re no more likely to notice it than if it appears on the edge of our vision ( Posner, 1980). What this suggests is that something other than the eyes such as selective attention, which don’t have time to shift, has moved to the area where the light was expected.įrom experiments like this Posner and others argued that it is our selective attention moving around the visual field, often remarkably independent of our actual gaze direction. What they found was that people were about 50 milliseconds (one-half of a tenth of a second) faster to detect the light when given a clue than not - a significant advantage. The question researchers were interested in was whether people were faster to respond to the light when given a clue about its position, compared with no clue. These hints were provided just a fraction of a second before the flash of light so people didn’t have time to move their eyes (this was checked using electrooculography) but had to flex their selective attention. or a box at the edge indicating where the light would appear. ![]() ![]()
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