Final answer:
Deep sleep, which is stage 3 of non-REM sleep, is where significant memory transfer and storage occur, with sleep spindles in stage 2 sleep also playing a role in learning and memory.
Step-by-step explanation:
Memory Storage and Sleep Stages
Regarding the question about the name of the sleep stage where memory transfer and storage occurs, the correct answer is B) Deep sleep. Deep sleep refers to stage 3 of non-REM sleep and is characterized by low frequency, high amplitude delta waves. It is during this stage that sleep spindles, which are rapid bursts of high-frequency brain waves, occur predominantly in stage 2 sleep and have been linked to learning and memory. Although deep sleep is crucial for memory consolidation, sleep spindles in stage 2 are also believed to be important for this process. REM sleep, while known for vivid dreaming, is not the primary stage for memory storage, but it still plays a significant role in learning and memory.
To address the additional inquiry, sleep spindles and K-complexes are most often associated with stage 2 sleep. This indicates that both deep sleep and stage 2 sleep are integral to the learning and memory functions carried out during sleep, with multiple stages contributing to these essential cognitive processes.