PSYCH207 Lecture Notes - Lecture 4: Visual Search, Superior Colliculus, Attentional Shift
Document Summary
Psych 207 - lecture 4 - paying attention. Focusing of cognitive resources on one/small number of tasks to the exclusion of others. Dichotic listening task: task where person hears two/more diff. , specially recorded messages over earphones and is asked to attend to one of them. States that there are limits on how much info. a person can attend to at any given time. The filter = selects info. for later processing protects us from information overload , any unattended isn"t recalled. Two messages that contain little info. /presented slowly can be processed simultaneously. Treisman: experiment of saying phrases on one ear at the same time as the other ear. Wood and cowan: did the same experiment, concluded attentional shift to the unattended message was unintentional and completed unaware. Model of attention where unattended perceptual events are transmitted in weakened form, but not blocked completely before being processed for meaning info. weakened but still available.
