PSYB51H3 Chapter 8: chapter 8

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Psyb51 chapter 8: attention and scene perception || page 1. Attention: any of the very large set of selective processes in the brain. To deal with the impossibility of handling all inputs at once, the nervous system has evolved mechanisms that are able to restrict processing to a subset of things, places, ideas, or moments in time. Overt attention: refers to directing a sense organ at a stimulus fixating the eyes on a single word. Covert attention: directing attention to a person off to the left. Divided attention: reading text whilst listening to music. Sustained attention: watching the pot to note the moment the water begins to boil. A measure of the time from the onset of a stimulus to a response. A stimulus that might indicate where (or what) a. Cues can be valid (correct info), invalid (incorrect), or neutral (informative). The time it takes for a cue to redirect our attention depends on the nature of the cue.