Posner,Snyder,and Davidson (1980)examined Spatial Attention Using Arrows as Primes

question 23

Multiple Choice

Posner,Snyder,and Davidson (1980) examined spatial attention using arrows as primes.In most of the trials the arrow pointed to the area where the stimulus would appear a moment later,but 20% of the time it did not.They compared reaction times (RTs) for trials when the cue correctly pointed to the stimulus location,for trials when the arrow pointed toward an incorrect position,and for trials with a neutral cue (no arrow) .Which of the following statements was NOT supported by their findings?

• A)RTs were slower when the arrow pointed toward an incorrect location.
• B)Spatial attention is limited in capacity.
• C)We can attend to two different locations without a reduction in performance.
• D)RTs were faster for responses for arrows pointing correctly compared to the neutral condition.

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Definitions:

Conditioned Response

A learned reaction to a previously neutral stimulus that occurs after repeated association with an unconditioned stimulus.

Unconditioned Stimulus

A stimulus that naturally and automatically triggers a response without prior learning or conditioning.

Conditioned Stimulus

In classical conditioning, a previously neutral stimulus that, after becoming associated with the unconditioned stimulus, triggers a conditioned response.

Neutral Stimulus

A stimulus that initially produces no specific response other than focusing attention, until it is paired with an unconditioned stimulus.