ATI RN
Psychology 2301 Exam 1
1. How do early life experiences shape brain development and behavior?
- A. Early life experiences have no impact on brain development.
- B. Early life experiences are crucial in shaping brain development and later behavior.
- C. Early life experiences are not significant in brain development.
- D. Early life experiences are easily overcome by adulthood.
Correct answer: B
Rationale: Early life experiences are crucial in shaping brain development and later behavior. These experiences play a significant role in laying the foundation for future mental health and behavior. Choice A is incorrect because early life experiences do have a profound impact on brain development. Choice C is incorrect as early life experiences are indeed significant in brain development. Choice D is incorrect as early life experiences can have lasting effects into adulthood.
2. Which neurotransmitter is reduced in both the manic and depressive phases of bipolar disorder?
- A. Acetylcholine
- B. Dopamine
- C. Norepinephrine
- D. Serotonin
Correct answer: D
Rationale: The correct answer is D, Serotonin. Serotonin levels are reduced during both the manic and depressive phases of bipolar disorder. Acetylcholine (choice A) is not typically linked to bipolar disorder. Dopamine (choice B) and norepinephrine (choice C) are more commonly associated with conditions like schizophrenia and depression, respectively, rather than bipolar disorder. Therefore, they are not the neurotransmitters reduced in both manic and depressive phases of bipolar disorder.
3. A baby throws its arms out and then inward (as if embracing) in response to loud noise or when its head falls. Which reflex is this?
- A. Babinski
- B. Palmar
- C. Darwinian
- D. Moro
Correct answer: D
Rationale: The correct answer is D, Moro. The Moro reflex is an instinctual response seen in infants when they experience a sudden loss of support or loud noise. The baby will throw their arms out and then bring them back in, resembling an embrace. This reflex is important for survival as it helps the infant react to potential dangers. Choice A, Babinski, refers to the reflex where a baby's toes spread apart when the sole of the foot is stimulated. Choice B, Palmar, is related to the reflex where a baby's fingers close tightly around an object placed in their palm. Choice C, Darwinian, is not a recognized reflex in this context.
4. 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.
5. Kai and Ken received their Christmas gifts from their parents. Although their gifts vary in many characteristics, the two compared their gifts based on size. This tendency among children is known as:
- A. Semiotic
- B. Abstraction
- C. Preoperational
- D. Overextension
Correct answer: D
Rationale: The correct answer is D, Overextension. Overextension happens when children compare objects or experiences based on one characteristic, such as size. Choices A, B, and C are incorrect. Semiotic refers to the study of signs and symbols; Abstraction is the process of thinking about something as a general concept rather than a specific example; Preoperational is a stage in Piaget's theory of cognitive development, not related to comparing gifts based on size.
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