Question

What is the benefit of deep processing over surface processing?

Answer 1

The benefit of deep processing is that it gives a lasting memory compared to a shallow processing in where the memories or thoughts do not last. The cognitive processing of one's stimulus is it's meaningful properties rather than the perceptual one.

Answer 2

Deep processing involves elaboration rehearsal which is a memory technique that involves thinking about the meaning of the term to be remembered, as opposed to simply repeating the word to yourself over and over. It also involves a more meaningful analysis (e.g. images, thinking, associations etc.) of information and leads to better recall.  For example, giving words a meaning or linking them with previous knowledge.