Asked in a 1998 paperModerate

Which of the following statements are true? 1. On a vernier acuity task, humans can discern the direction of very tiny offsets, but performance deteriorates with practice. 2. Different types of visual search have different behavioural characteristics and depend on different brain regions. 3. Walsh et.al. (1998) suggest that the right parietal lobe may be involved in setting up new templates in the conjunctions of, say, colour and form. 4 All of the above.

Correct answer: B. 2 & 3

  • A. 1 & 2
  • B. 2 & 3
  • C. 1 & 3
  • D. 4

Explanation

Statements 2 and 3 are correct: visual searches differ in behavioural demands and neural involvement, and the right parietal region has been linked with forming conjunction templates. Vernier performance generally improves rather than deteriorates with practice, making statement 1 false.

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