Which of the following statements best describes the biologic theories of the etiology of eating disorders?
A) Eating disorders involve dysregulation of multiple neurotransmitter systems and may be influenced by behavioral, cultural, and familial factors.
B) Eating disorders involve dysregulation of the serotonergic system and have a strong genetic component.
C) Eating disorders result from family dysfunction involving a controlling mother; neurotransmitter dysfunction is a result, not a cause, of the eating disorder.
D) Eating disorders involve dysregulation of multiple neurotransmitter systems, whether as a cause or an effect of the eating disorder, and may be influenced by behavioral, cultural, and familial factors.
Ans: D
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Eating disorders can be best understood in terms of a multifactorial etiology. Most experts agree that anorexia and bulimia develop from a complex interaction of individual, family, and sociocultural factors. Research strongly suggests that eating disorders may originate in part from hypothalamic, hormonal, neurotransmitter, or biochemical disturbances. Whether the biologic abnormalities seen in clients with eating disorders contribute to the disorders or are secondary to the dysregulation in the eating behavior remains unclear.
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