ATI RN
Exam 4 Psychology
1. 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.
2. What neurotransmitter was first believed to be the cause of schizophrenia?
- A. GABA
- B. Serotonin
- C. Epinephrine
- D. Dopamine
Correct answer: D
Rationale: The correct answer is Dopamine. Dopamine was initially thought to be the primary cause of schizophrenia. This neurotransmitter hypothesis was based on the observation that drugs that increase dopamine activity can worsen symptoms of schizophrenia, while drugs that decrease dopamine activity can improve symptoms. Choices A, B, and C are incorrect because GABA, serotonin, and epinephrine were not the neurotransmitters initially believed to be the cause of schizophrenia.
3. What is a person's total genetic endowment?
- A. Phenotype
- B. Genotype
- C. Chromosomes
- D. DNA
Correct answer: B
Rationale: The correct answer is B: Genotype. A genotype refers to a person's total genetic endowment, representing the specific genetic makeup inherited from their parents. This includes all the genes and genetic information contained in an individual's DNA. Choices A, C, and D are incorrect because: A) Phenotype refers to the observable characteristics resulting from the interaction of genetics and the environment; C) Chromosomes are physical structures that contain genes, not the total genetic endowment itself; D) DNA carries genetic information but is just one component of an individual's total genetic endowment.
4. What is the biopsychosocial model, and why is it important?
- A. A model that integrates biological, psychological, and social factors.
- B. A model that focuses solely on biological factors.
- C. A model that excludes social factors.
- D. A model that focuses solely on psychological factors.
Correct answer: A
Rationale: The biopsychosocial model is a model that integrates biological, psychological, and social factors. It is important because it recognizes the interconnectedness of these factors in influencing an individual's mental health. Option B is incorrect because the biopsychosocial model does not focus solely on biological factors. Option C is incorrect as the model does not exclude social factors. Option D is incorrect as the model does not focus solely on psychological factors.
5. The child might see an orange and say 'apple' because both objects are round. This is known as ____?
- A. Accommodation
- B. Assimilation
- C. A detailed description of a single culture or context
- D. A study that tests a causal hypothesis
Correct answer: B
Rationale: The correct answer is B: Assimilation. Assimilation occurs when a child applies an existing schema (like 'apple' for round objects) to new objects. In this scenario, the child sees the round orange and calls it an 'apple' because they are both round. Choice A, Accommodation, involves modifying an existing schema to fit a new object or situation, which is not the case in the given scenario. Choices C and D are unrelated to the concept being tested in this question.
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