Attention - Split span • Evidence against “early”...

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Chapter 5: Attention Attention: Selectivity and Resource Allocation SELECTIVITY o What events “capture” attention? o How complete is selectivity? AROUSAL AND ALERTNESS o Does capacity change over time? o How is it affected by arousal, task demands, or intention? DIVIDED ATTENTION o How well can we do two things at once? o Can we improve our skill in dividing attention? Selective Attention Happens “Early” Evidence for “early” selection: o Poor detection and memory for unattended input channel (Cherry’s (1953)  dichotic listening task) o Tendency to report concurrent inputs “by chance”
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Unformatted text preview: Split span • Evidence against “early” selection: o S’s name is recognized on unattended channel (Moray, ‘59) o Context can force switch to ignored ear (Grey & Weddeburne’s “Dear Aunt Jane” study) o Meaning of “ignored” words can affect behavior (MacKay, ’72) S.A. Happens Intermediately Treisman’s Attenuation Model • 2 states of selection o Attenuator o Only does min requirement for ID (Phys Semantic o “leaky” filiter o Unattended message attached • Dictionary unit o Compare input to threshold of stored EPs reps...
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This note was uploaded on 03/18/2009 for the course EXP 3604 taught by Professor Fasig during the Fall '08 term at University of Florida.

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Attention - Split span • Evidence against “early”...

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