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3:50 to Read
Around 1-1:30 to Solve
1. (A) Research into the drug is promising but inconclusive. --- The passage talks about the research of Jacob's theory and not LSD
(B) The neuron receptor sites that normally bind serotonin will also bind the drug. -- 3rd Para states this
(C) The locus ceruleus causes the drug to affect bodily systems more rapidly than normal. --The drug causes LC to discharge norepinephrine at a faster rate.
(D) The drug stimulates norepinephrine and serotonin. --Inhibits serotonin
(E) A person who ingests more than 20 micrograms of the drug will have hallucinations. -- Passage states "can" that doesn't mean the person will necessarily get hallucinated
2.
(A) to outline a theory and suggest options for further research --- Nowhere in the passage the author is suggesting options
(B) to act as an advocate for additional research to help elucidate a particular theory's validity --- He is not advocating to elucidate, he says future scientific advances should allow this theory to be tested more rigorously
(C) to introduce a theoretical construct that has not yet been sufficiently proven -- The last line states this
(D) to demonstrate the complexities involved in conducting a certain type of scientific research -- Not in the passage
(E) to articulate a hypothesis and lay out the case for proving it -- He is not proving
3. Which of the following, if true, would most undermine the central premise of the Jacobs hypothesis?
(A) LSD does not cause as much long-term neurological damage as previously thought. --Out of scope
(B) Serotonin and norepinephrine rise and fall in tandem. --If Anything it strengthens the theory
(C) Researchers prove conclusively that the level of norepinephrine in the brain is a significant factor in enabling the brain to sleep. -- Option not enough convincing, merely states "level of norepinephrine in the brain is a significant factor rather than talking about decreasing levels"
(D) Some semi-synthetic hallucinogenic drugs other than LSD do not inhibit serotonin.-- If true invalidates "recluding sleep, and inhibits serotonin, which Jacobs had postulated was a necessary condition for dreaming,"
(E) The first four stages of sleep are as crucial to the process of dreaming as is the fifth stage. ---OOS
4. According to the passage, all of the following are true EXCEPT
(A) Norepinephrine and serotonin are discharged only during waking states. --- Initially the passage states this but then goes on to mention that levels drop virtually to zero. -- ANS
(B) Ingesting more than 20 micrograms of LSD will cause some people to hallucinate.-- Passage states "can" that doesn't mean the person will necessarily get hallucinated . 1st Question Option e differs with this because of the word "some"
(C) Rapid eye movement is the stage of sleep during which people dream. --TRUE
(D) LSD causes neurons to increase the rate at which they discharge norepinephrine. -- TRUE
(E) The absence of serotonin seems to be necessary in order to enable the brain to dream.--TRUE
Around 1-1:30 to Solve
1. (A) Research into the drug is promising but inconclusive. --- The passage talks about the research of Jacob's theory and not LSD
(B) The neuron receptor sites that normally bind serotonin will also bind the drug. -- 3rd Para states this
(C) The locus ceruleus causes the drug to affect bodily systems more rapidly than normal. --The drug causes LC to discharge norepinephrine at a faster rate.
(D) The drug stimulates norepinephrine and serotonin. --Inhibits serotonin
(E) A person who ingests more than 20 micrograms of the drug will have hallucinations. -- Passage states "can" that doesn't mean the person will necessarily get hallucinated
2.
(A) to outline a theory and suggest options for further research --- Nowhere in the passage the author is suggesting options
(B) to act as an advocate for additional research to help elucidate a particular theory's validity --- He is not advocating to elucidate, he says future scientific advances should allow this theory to be tested more rigorously
(C) to introduce a theoretical construct that has not yet been sufficiently proven -- The last line states this
(D) to demonstrate the complexities involved in conducting a certain type of scientific research -- Not in the passage
(E) to articulate a hypothesis and lay out the case for proving it -- He is not proving
3. Which of the following, if true, would most undermine the central premise of the Jacobs hypothesis?
(A) LSD does not cause as much long-term neurological damage as previously thought. --Out of scope
(B) Serotonin and norepinephrine rise and fall in tandem. --If Anything it strengthens the theory
(C) Researchers prove conclusively that the level of norepinephrine in the brain is a significant factor in enabling the brain to sleep. -- Option not enough convincing, merely states "level of norepinephrine in the brain is a significant factor rather than talking about decreasing levels"
(D) Some semi-synthetic hallucinogenic drugs other than LSD do not inhibit serotonin.-- If true invalidates "recluding sleep, and inhibits serotonin, which Jacobs had postulated was a necessary condition for dreaming,"
(E) The first four stages of sleep are as crucial to the process of dreaming as is the fifth stage. ---OOS
4. According to the passage, all of the following are true EXCEPT
(A) Norepinephrine and serotonin are discharged only during waking states. --- Initially the passage states this but then goes on to mention that levels drop virtually to zero. -- ANS
(B) Ingesting more than 20 micrograms of LSD will cause some people to hallucinate.-- Passage states "can" that doesn't mean the person will necessarily get hallucinated . 1st Question Option e differs with this because of the word "some"
(C) Rapid eye movement is the stage of sleep during which people dream. --TRUE
(D) LSD causes neurons to increase the rate at which they discharge norepinephrine. -- TRUE
(E) The absence of serotonin seems to be necessary in order to enable the brain to dream.--TRUE
