ATI RN
Exam 4 Psychology 101
1. While out for a walk, you come across a ferocious dog. You feel your heart beating faster and your palms begin to sweat. Which part of the peripheral nervous system is activated in this situation?
- A. Autonomic
- B. Sympathetic
- C. Parasympathetic
- D. Somatic
Correct answer: B
Rationale: The correct answer is B: Sympathetic. When encountering a stressful situation like a ferocious dog, the sympathetic nervous system is activated, leading to the 'fight or flight' response. This response triggers physiological changes like increased heart rate, sweating, and heightened alertness to prepare the body to deal with the perceived threat. The autonomic nervous system (Choice A) encompasses both the sympathetic and parasympathetic divisions, so it's a broader category. The parasympathetic nervous system (Choice C) is responsible for the body's 'rest and digest' functions, which are opposite to the physiological changes seen in a stress response. The somatic nervous system (Choice D) controls voluntary movements and sensory information, not the physiological responses seen in a stress reaction.
2. Which of the following is not a common method for studying genetic influences?
- A. The study of specific gene defects
- B. Twin studies
- C. Adoption studies
- D. Family history (pedigree) studies
Correct answer: A
Rationale: The correct answer is A. Studying specific gene defects is not a common method for investigating genetic influences. Choices B, C, and D are common methods used in genetic research. Twin studies help determine the heritability of traits, adoption studies compare similarities between adopted individuals and their adoptive families versus biological families, and family history studies track the inheritance patterns of traits within families.
3. Genes ________.
- A. determine how a person will behave.
- B. cause people to develop mental disorders.
- C. determine what characteristics a person will have.
- D. determine the range of characteristics a person has.
Correct answer: D
Rationale: Genes determine the range of characteristics a person has. This is the correct answer because genes contribute to a variety of traits and characteristics a person may have, influencing physical attributes, predispositions to certain conditions, and more. Choice A is incorrect because behavior is influenced by a combination of genetic and environmental factors. Choice B is incorrect because mental disorders are complex conditions influenced by various factors beyond just genes. Choice C is incorrect because genes do not solely determine all characteristics a person will have, as environmental factors also play a significant role.
4. In __, the individual can't recall everything about a certain period of time.
- A. Systematized amnesia
- B. Selective amnesia
- C. Collective amnesia
- D. Localized amnesia
Correct answer: D
Rationale: Localized amnesia refers to the inability to recall all events during a specific period of time. This type of amnesia is characterized by the loss of memories related to a particular incident or period, while other memories remain intact. Choices A, B, and C are incorrect because they refer to different types of amnesia. Systematized amnesia is a term used to describe a selective loss of memory related to a specific category of information or knowledge. Selective amnesia involves the conscious or unconscious blocking out of specific memories, often due to psychological reasons. Collective amnesia pertains to a lack of shared memory or historical awareness within a group or society.
5. The process of ________ is used to increase the probability that a behavior will occur.
- A. operant conditioning
- B. reinforcement
- C. classical conditioning
- D. punishment
Correct answer: B
Rationale: The correct answer is reinforcement. Reinforcement involves providing a consequence that increases the likelihood of a behavior being repeated. Operant conditioning (Choice A) refers to learning through consequences for behavior, which includes reinforcement and punishment. Classical conditioning (Choice C) involves forming associations between stimuli and involuntary responses. Punishment (Choice D) involves providing a consequence that decreases the likelihood of a behavior being repeated. In this context, the question specifically asks about a process that increases the probability of a behavior occurring, aligning with the concept of reinforcement.
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