cognitive psychology psyc231 attention 1 dr. jan lauwereyns, ea619, ext. 5042
TRANSCRIPT
Cognitive PsychologyPSYC231
Attention 1
Dr. Jan Lauwereyns, EA619, ext. 5042
Too much information –How do we select what’s relevant?
Bottleneck metaphor
Read the bold print. Somewhere Among hidden the in most the spectacular Rocky Mountains cognitive near abilities Central City is Colorado the an ability old to miner select hid one a message box from of another. gold. We Although do several this hundred by people focusing have our looked attention for on it, certain they cues have such not as found type it style.
What do you remember from
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Early selection: before pattern recognition
Late selection: after pattern recognition
Example of Early Selection Model: Donald Broadbent’s Filter
Properties:1. Selection (filtering) is based on physical properties of the stimulus (e.g., pitch, loudness, etc...). 2. Attention is directed to information that passes the filter or to physically salient information that leads to a shift in attention. 3. Only one input channel can be processed at a time. It takes time to shift attention.
But: Dear 7 Jane vs. 9 Aunt 6
Figure 4.5 (p.105 )In Gray and Weddebum’s (1960) “Dear Aunt Jane” experiment, the message “Dear Aunt Jane” starts in the left ear, jumps to the right ear and then goes back to the left. Participants were told to shadow the message presented to the left ear.
Example of Early Selection Model: Anne Treisman’s Attenuation
Examples of Late Selection Model: Norman, (MacKay,) Deutsch & Deutsch
Norman
Electrophysiological evidence for evidence of early effects of attention