Which of the following statements regarding MDMA, commonly ...

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Which of the following statements regarding MDMA, commonly referred to as ecstasy, is correct?
 
  a. Some psychotherapists have used it in an attempt to increase empathy and insight in their patients.
  b. With large doses it induces perceptual effects similar to those of LSD.
  c. National surveys have indicated that its use by adolescents and young adults has increased dramatically over the past 15 years.
  d. all of these

Question 2

LSD, psilocybin and mescaline differ from each other primarily in terms of
 
  a. their efficacy in inducing profound and intense perceptual distortions and hallucinatory experiences
  b. their potency
  c. ability to induce cross-tolerance to each other's effects
  d. their effects on autonomic nervous system activities

[af]

Answer to Question 1

d

Answer to Question 2

b

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Excellent

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TYSM