PSY 402 Lecture Notes - Lecture 4: Pollyanna Principle, Flashbulb Memory, Stroop Effect
25 Sep 2016
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Document Summary
Involves the ability to focus while ignoring other features, to shift that focus, and to coordinate information from multiple sources. Laboratory suggest that people become less efficient in the use of attentional processes with age. Visual search tasks: require that the observer locate a specific target among a set of distractors. Simple visual search: target differs from the other stimuli by only one feature, such as shape, colour, or size: reaction time tends to increase as the number of times in the stimulus get larger. Relies on parallel processing: you can scan the whole array at once, just looking for the one feature that matches that of the target. Conjunction visual search: target differs from the distraction in more than one way. Ex: the target is an orange square and the distracters are black squares and orange triangles. To register a correct response, the respondent must indicate that the target is present only.
