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Fill-In Questions (4 points each): For each Till-In question, insert the best answer pasea on the material provided in bold font in place of the blank. Some answers are two words. The correct answer will make the sentence grammatically correct. 41. Periods of REM sleep alternate with periods of non-REM sleep in a cycle that recurs about every minutes or so. 42. If your physician says you need a treatment called a CPAP device, you are suffering from 43. Sleep spindles occur during the stage of sleep. 44. Bill suddenly and without warning slips into REM sleep during the day. He often falls to the ground and is difficult to awaken. Bill may have a condition called 15. Russell needs more of the drug he has been using to get the normal high he got when he first tarted. Russell is experiencing 6. After taking a drug for several years, Bruce decides to quit taking it. He begins to experience a riety of physical symptoms, psychological symptoms such as irritability, and a strong craving for the bstance. Bruce is experiencing Drugs derived from opium are called Morphine and heroin duplicate the action of Chemical substances that change moods and perceptions are called drugs. One of the few legal uses for amphetamines is for treating