ATI RN
Exam 4 Psychology
1. How is pruning best defined?
- A. The process of eliminating unused synapses
- B. The process of synapse development
- C. The connection between neurons
- D. Fatty sheath that wraps around neurons and enables them to transmit information more rapidly
Correct answer: A
Rationale: Pruning is the process of eliminating unused synapses in the brain. This process helps the brain to become more efficient by strengthening important connections and eliminating unnecessary ones. Choice B is incorrect because pruning is about eliminating synapses, not developing them. Choice C is incorrect as it refers to the general concept of connections between neurons, not specifically about pruning. Choice D is incorrect as it describes the myelin sheath, which is responsible for rapid transmission of information along neurons, not pruning.
2. During conception, the 23 unpaired chromosomes in the ovum and sperm combine to form 23 pairs in an entirely new cell called the?
- A. Embryo
- B. DNA
- C. Fetus
- D. Zygote
Correct answer: D
Rationale: The correct answer is D, Zygote. A zygote is formed when the 23 chromosomes from the ovum and sperm combine during conception. It is the initial cell formed and marks the beginning of a new organism. Choice A, Embryo, is incorrect as an embryo is formed later in the development process. Choice B, DNA, is incorrect as DNA is the genetic material within the chromosomes but is not the name of the new cell formed after fertilization. Choice C, Fetus, is incorrect as a fetus is the stage of prenatal development that occurs well after the zygote stage.
3. Who took the position that organisms tend to repeat responses that lead to positive outcomes and tend not to repeat responses that lead to neutral or negative outcomes?
- A. Sigmund Freud
- B. B.F. Skinner
- C. Carl Rogers
- D. Abraham Maslow
Correct answer: B
Rationale: The correct answer is B.F. Skinner. Skinner proposed the theory of operant conditioning, where behavior is shaped by its consequences. Positive outcomes increase the likelihood of a behavior being repeated, while neutral or negative outcomes decrease it. Sigmund Freud (choice A) is known for his psychoanalytic theory, Carl Rogers (choice C) for person-centered therapy, and Abraham Maslow (choice D) for the hierarchy of needs.
4. What is the branch of psychology concerned with the diagnosis and treatment of psychological disorders called?
- A. Industrial psychology.
- B. Social psychology.
- C. Developmental psychology.
- D. Clinical psychology.
Correct answer: D
Rationale: The correct answer is D, Clinical psychology. Clinical psychology specifically deals with the diagnosis and treatment of psychological disorders. Industrial psychology (choice A) focuses on behavior in the workplace, social psychology (choice B) studies how people's thoughts, feelings, and behaviors are influenced by the actual, imagined, or implied presence of others, and developmental psychology (choice C) is the study of how and why people change over time.
5. Unlike other types of anxiety disorders, this one is not triggered by anything specific, hence the name free-floating anxiety.
- A. Social anxiety disorder
- B. Generalized anxiety disorder
- C. Panic disorder
- D. Specific phobia
Correct answer: B
Rationale: The correct answer is B, Generalized anxiety disorder. Generalized anxiety disorder is characterized by persistent and excessive worry or anxiety that is not triggered by specific situations or objects, hence the term 'free-floating anxiety.' Social anxiety disorder (A) is characterized by fear and anxiety about social situations, panic disorder (C) involves recurrent unexpected panic attacks, and specific phobia (D) is an intense fear of a specific object or situation. Therefore, B is the most appropriate choice in the context of anxiety not being triggered by specific stimuli.
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