Final answer:
Revision is required because memory retrieval is a reconstructive process, where revisiting material regularly helps prevent distortions and strengthens memory. Strategies like rehearsal and making connections with existing knowledge are key for enhancing memory retention.
Step-by-step explanation:
The process of memory construction and reconstruction is crucial when it comes to revision for exams or learning new information. Construction of memory involves creating new memories, while reconstruction refers to the retrieval and possible alteration of existing memories. The reason why revision is essential lies in the way our brains work. As we strive to recall information, we are not just retrieving a perfect replica from our memories; instead, we are often reconstructing it, sometimes with modifications and distortions, due to the flexible nature of our memory when it moves from long-term to short-term storage.
Rehearsal is a method that moves information from short-term to long-term memory, and it can take various forms such as active rehearsal, which involves practicing information repeatedly, or elaborative rehearsal, which connects new information to what is already known. The levels of processing hypothesis suggests that the deeper and more meaningful our engagement with the material, the better we remember it.
Moreover, revising gives us the opportunity to refresh our memory and strengthen the neural pathways associated with specific information. Utilizing strategies like elaborative rehearsal, self-reference effect, and distributed practice can significantly enhance memory retention. Constant rehearsal and organized study sessions help link new information to existing knowledge, solidifying the connections in our brain and improving recall.
In summary, the necessity for revision stems from the nature of memory retrieval, where regular reviewing and engagement with the material reinforce the memory and aid in preventing decay or distortion of the information over time.