how does the diathesis stress model explain the onset of mental disorders

ATI RN

Psychology 101 Final Exam

1. How does the diathesis-stress model explain the onset of mental disorders?

A. Stress alone is sufficient to cause mental disorders.
B. Both genetic vulnerability and environmental stress are needed to trigger a disorder.
C. Only genetic factors cause mental disorders.
D. Environmental stressors alone can cause mental disorders.

Correct answer: B

Rationale: The diathesis-stress model explains that the onset of mental disorders results from the interaction of genetic vulnerability (diathesis) and environmental stress. Choice A is incorrect because stress alone is not sufficient, according to the model. Choice C is incorrect as it oversimplifies by attributing mental disorders solely to genetic factors. Choice D is incorrect because the model emphasizes the joint contribution of genetic predisposition and environmental stress.

2. Which part of your brain is active when you get cues about being hungry, thirsty, or sleepy?

A. Hippocampus
B. Thalamus
C. Hypothalamus
D. Amygdala

Correct answer: C

Rationale: The correct answer is the Hypothalamus (Choice C). The hypothalamus plays a crucial role in regulating basic bodily functions such as hunger, thirst, and sleep. It receives cues related to these needs and helps to maintain homeostasis in the body. The Hippocampus (Choice A) is primarily involved in memory formation and spatial navigation, not in regulating physiological needs. The Thalamus (Choice B) acts as a relay station for sensory information but is not the main center for hunger, thirst, or sleep regulation. The Amygdala (Choice D) is more associated with emotions, particularly fear and pleasure, rather than physiological needs like hunger, thirst, or sleep.

3. How does genetic predisposition influence mental health?

A. Genetic predisposition guarantees the development of mental disorders.
B. Genetic predisposition plays a role but is not the sole determinant of mental health.
C. Genetic predisposition does not influence mental health.
D. Genetic predisposition determines mental health without exception.

Correct answer: B

Rationale: Genetic predisposition indeed plays a significant role in influencing mental health by increasing the risk of developing certain disorders. However, it is crucial to note that it is not the sole determinant. Mental health is also influenced by various environmental factors, lifestyle choices, and individual experiences. Option A is incorrect because genetic predisposition does not guarantee the development of mental disorders; it only predisposes individuals to a higher risk. Option C is incorrect as genetic predisposition does have an influence on mental health. Option D is incorrect because mental health is a complex interplay of genetic, environmental, and other factors.

4. Which term describes the conditions that guarantee the occurrence of a disorder?

A. Necessary causes
B. Contributory causes
C. Sufficient causes
D. Protective factors

Correct answer: C

Rationale: The correct answer is 'Sufficient causes.' Sufficient causes are conditions that alone are enough to guarantee the occurrence of a disorder. Necessary causes refer to factors that must be present for the disorder to occur but are not enough on their own. Contributory causes increase the likelihood of a disorder but are not enough to cause it by themselves. Protective factors are conditions that reduce the likelihood of a disorder occurring.

5. In order for one to be diagnosed with panic disorder, the panic attacks must?

A. Suddenly; unexpectedly
B. Suddenly; gradually
C. Gradually; unexpectedly
D. Unexpectedly; suddenly

Correct answer: A

Rationale: The correct answer is A: 'Suddenly; unexpectedly.' Panic disorder is diagnosed when panic attacks occur unexpectedly, not gradually. Panic attacks are characterized by their sudden onset and are unpredictable. Choice B is incorrect because panic attacks do not manifest gradually. Choice C is incorrect because panic attacks are not expected or predicted. Choice D is incorrect as well because the unexpected nature of panic attacks is a key criterion for diagnosing panic disorder.