The monoamine hypothesis of the development of depression focuses on insufficient activity of several neurotransmitters. Although this hypothesis has influenced treatment, it is not without shortcomings as an explanation for depression.
What is one of the problems of this hypothesis?
a) In some cases, high levels of these neurotransmitters are the actual
cause of depression.
b) Not all people who suffer depression have all the neurotransmitters
thought to be involved in depression.
c) Other neurotransmitters such as GABA and acetylcholine appear to
be involved in some cases of depression.
d) The neurotransmitter levels thought to be involved in depression are actually responding to changes in diet that often accompany depression.
Question 2
Which of the following was NOT mentioned in the text as a weakness of the ABAB design?
a) It has low internal validity.
b) Reinstating the original condition is ethically questionable.
c) It has low external validity.
d) The initial state of the subject may not be recoverable.
Occurrence of stem cells at different stages of mammalian development
Assessing for postpartum depression
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Summary of Cytokine Activity
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Seven-week embryo showing development of arm, forearm, and hand