PSYC 4365 Lecture Notes - Lecture 19: Visual Search, Mental Chronometry, Binding Problem
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Selective attention: the form of attention involved when processing is restricted to a subset of the possible stimuli. Figure 7. 1 even though the letters are big enough to resolve while looking at the xs, we simply cannot read the left-hand and right- hand sentences at the same time. Figure 7. 2 search for the unicorn in this piece of a where"s waldo? picture. Reaction time (rt): a measure of the time from the onset of a stimulus to a response. Cue: a stimulus that might indicate where (or what) a subsequent stimulus will be: cues can be valid (correct information), invalid (incorrect), or neutral (uninformative) Stimulus onset asynchrony (soa): the time between the onset of one stimulus and the onset of another. Cueing as a tool for examining attention: simple probe detection experiment. Posner cueing paradigm: cues can be valid or invalid. Figure 7. 3 the posner cueing paradigm (part 1) Figure 7. 3 the posner cueing paradigm (part 2)
