Author Question: Selective attention is necessary to reduce the amount of information coming in from the external ... (Read 48 times)

evelyn o bentley · **on:** Jun 20, 2018

Selective attention is necessary to reduce the amount of information coming in from the external world. However, selective attention is also a consequence of basic information processing limitations.

In particular, what limitation necessitates selective attention?
What will be an ideal response?

Question 2

You are conducting a fMRI study in which participants must select a particular target. If attention is actively involved in this task, the fMRI signal should be __________.

a. enhanced c. condensed
b. dissipated d. reduced

jessicaduplan · **Reply #1 on:** Jun 20, 2018

Answer to Question 1

Answer: Information processing can be limited by channel capacity. Channel capacity, in turn, limits the flow or amount of information than be processed. Therefore, selective attention is necessary to reduce the amount of incoming information to fit the size of the processing channel.

Answer to Question 2

Answer: a