BIOL 303 Chapter Notes - Chapter 04: Hemispatial Neglect, Parietal Lobe, Frontal Lobe
14 Feb 2013
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Document Summary
Selective attention: the focusing of cognitive resources on one or a small number of tasks to the exclusion of others. A person listens to an audiotape over a set of headphones. On the tape are different messages, recorded so as to be heard simultaneously in opposite ears. Participants in a dichotic listening task typically are played two or more different messages and asked to shadow that is, to repeat aloud- one of them. Information presented at a rapid rate (~150 words/minute) so the shadowing task is demanding. At the end of the task, participants are asked what information they remember from either message the attended message or the unattended message. Sometimes the tapes are recorded so that both messages are heard in both ears- called binatural presentation and some researchers have used it in addition to dichotic listening tasks. The person must concentrate on the message to be shadowed.
