You went to the Army-Navy football game to meet your friend Kurt, who attends the Naval Academy. Finding Kurt turns out to be somewhat of a problem because half of the people at the game are approximately six feet tall, with similar hair cuts, wearing naval academy uniforms (including hats, which are called covers at the Naval Academy). The difficulty you have in finding Kurt occurs because you cannot use

bottom-up processing.

Explanation:

There are generally two processes used in perception and sensation. They are the top down processing and bottom up processing. The bottom up processing may be define as the process of processing the sensory information as it comes in. The bottom up processing starts perceiving smaller pieces of sensory information and build ups together one full image.

In the context, I cannot use the concept of bottom up processing to find Kurt as all the players are looking alike with their uniforms and hair cuts, So it is difficult to recognize Kurt by identifying his smaller pieces of his cognitive image and identify him.

Hence the answer is -- bottom-up processing.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.