10 Questions
What were the results of the experiment on detecting orientation oddballs with set-size 12?
The reaction time decreased with the number of distractor items.
What did Braun and Sagi find when testing arrays of items for discriminating between the letters L and T?
Performance was not affected by the presence of distractor items.
What effect did extensive practice have on the observable attentional effects in the L/T discrimination task?
Extensive practice reduced the attentional effects but did not eliminate them.
What do the results of the experiments suggest about visual feature search tasks?
Visual feature search tasks are impaired by a demanding attentional load.
What does the present study argue against?
The existence of a separate privileged category of preattentive perception.
The reaction time for detecting orientation oddballs increases with the number of distractor items.
False
The perception of an orientation difference within a two-dimensional array of items requires attentional resources.
True
Extensive practice can eliminate the observable attentional effects in visual feature search tasks.
False
The results of Mack et al.'s study suggest that unexpected and irrelevant objects in the visual field are always noticed.
False
The present study challenges the idea that preattentive processing can lead directly to perceptual report.
True
Test your knowledge on stimulus attributes and their effects on reaction times in perception tasks. Explore the concept of focal attention and parallel processing in this quiz.
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