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Problem 13 - Olympiad

Two neuroscientists are discussing the mechanism of memory consolidation in the brain. Scientist E argues that sleep is essential for memory consolidation, as it allows for the active replay and strengthening of neural circuits formed during waking hours. Scientist F posits that memory consolidation is a continuous process that occurs during both waking and sleeping states, and sleep merely provides an optimal, distraction-free environment rather than a unique mechanism. Which finding would most effectively weaken Scientist E's argument?

Correct: B

Scientist E argues that sleep is *essential* and involves *active replay and strengthening*. Scientist F suggests it's continuous and sleep is just an *optimal environment*. If memory recall can be *enhanced* by specific brain stimulation during wakefulness (Choice B), it suggests that the active strengthening of neural circuits can occur without sleep, thus weakening the idea that sleep is *essential* for this process, as argued by Scientist E. Choices A, C, and D generally support Scientist E's view or are consistent with it.