Unformatted text preview: objects? Explain with the aid of a diagram. Chapter 28: Sleep and Wakefulness 1. Describe the stages of the sleep cycle. What can be said about the purpose of REM sleep? 2. What is the purpose of sleep? What happens to a rat if it is deprived of sleep for a few weeks? Does this add to our knowledge of why animals sleep? 3. What gives rise to the EEG? Distinguish between alpha, beta, delta, and PGO waves. Which represents greater synchrony of neural activity, alpha or delta waves? 4. What brainstem or hypothalamic regions control wakefulness and sleep by modulating thalamocortical activity? 5. What evidence shows that circadian rhythmicity is endogenous? Explain why the suprachiasmatic nucleus (SCN) is considered to be the master circadian clock....
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- Spring '10
- Neuroscience, Circadian rhythm, Broca, Speech and Language, anatomical hemispheric asymmetry, common neural substrates