Causes of Repetition Blindness
This experiment explores the phenomena that people tend not to perceive repeated
patterns appearing within about half a second. Subjects look at a CRT screen
showing rapid sequences of alphanumeric characters. Target characters are colored.
Subjects type into the keyboard the identities of the target characters. In
certain trials subjects are also given a memory load of three other characters
which they will need to remember and repeat at the end of the trial. Response
time and accuracy data are collected. Possible interference in the task by
implementing a memory load, and variations in search difficulty with different
numbers or distractors are used to make inferences about the cognitive processes
underlying visual search performance.
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