Which of the following brain mechanisms has been implicated in anorexia?
a) Starvation releases natural pain-reducing opioids producing a high which reinforces not eating.
b) With puberty, female hormones increase dramatically and damage centers which control eating in the thalamus and pituitary.
c) Excessive exercise depletes the brain of neurotransmitters utilized by areas that regulate hunger or satiation.
d) Stress-released hormones reduce the sensitivity of receptors that detect blood-sugar levels and release hormones that induce hunger.
a
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The first step in the scientific method is ____; the third step is to ____
a. identifying a question of scientific interest; choose a research method and a research design b. forming a hypothesis; choose a research method and a research design c. identifying a question of scientific interest; collect data to test the hypothesis d. collecting data to test the hypothesis; choose a research method and a research design
A secret agent learns the combination to a safe belonging to the enemy. He later recalls the combination for his boss to prove that he has learned it
Right afterwards, he says an emotional goodbye to his lover before setting out on a dangerous mission to open the safe. Which of the following statements summarizes the likely effect on the agent's memory for the combination? a) The emotional arousal will facilitate recall of the combination and the goodbye scene b) The emotional arousal will impair recall of the combination and the goodbye scene c) The emotional arousal will facilitate recall of the stimuli associated with the goodbye scene but not the combination. d) The emotional arousal will impair recall of the stimuli associated with the goodbye scene but not the combination.