ATI RN
Exam 4 Psychology 101
1. To overcome her fear of balloons due to the loud sound they might make when popping, Bella must sit in a room filled with balloons while the therapist pops each one. After a while, Bella realizes that her fear is unjustified and even begins to pop balloons herself. This technique is known as?
- A. Systematic desensitization
- B. Aversion therapy
- C. Flooding
- D. Extinction
Correct answer: C
Rationale: The correct answer is C, Flooding. Flooding is an exposure therapy technique where a person is exposed to their fear at full intensity until the fear subsides. In this scenario, Bella is exposed to her fear of balloons in a controlled environment until she realizes her fear is unjustified. Choice A, Systematic desensitization, involves gradual exposure to the fear stimulus paired with relaxation techniques. Choice B, Aversion therapy, aims to create a negative association with a stimulus to reduce unwanted behavior. Choice D, Extinction, refers to the gradual decrease in the strength or frequency of a conditioned response.
2. How can resilience impact the likelihood of developing a mental disorder?
- A. Resilience has no impact on mental health outcomes.
- B. Resilience can help individuals overcome significant stressors.
- C. Resilience is irrelevant to mental health.
- D. Resilience is the sole factor that determines mental health outcomes.
Correct answer: B
Rationale: The correct answer is B. Resilience plays a crucial role in mental health outcomes by enabling individuals to navigate and overcome stressors effectively, thus reducing the probability of developing mental disorders. Choice A is incorrect as resilience does have a positive impact on mental health. Choice C is incorrect as resilience is highly relevant to mental health outcomes. Choice D is incorrect because while resilience is important, it is not the only factor influencing mental health.
3. The site of chemical communication in the brain is the ________.
- A. neuron
- B. synapse
- C. axon
- D. dendrite
Correct answer: B
Rationale: The synapse is the correct answer. It is the site where communication between neurons occurs through the release and reception of neurotransmitters. Choice A, neuron, is incorrect as it is the cell itself rather than a specific site of communication. Choice C, axon, is also incorrect as it is a part of the neuron that transmits signals away from the cell body. Choice D, dendrite, is not the correct answer either, as dendrites receive signals from other neurons but do not release neurotransmitters for communication.
4. What is the result when a single zygote separates into two parts, each developing into a separate individual?
- A. Dizygotic twin
- B. Monozygotic twin
- C. Fraternal twin
- D. Nonidentical twin
Correct answer: B
Rationale: The correct answer is B, Monozygotic twin. A monozygotic twin, also known as an identical twin, is the result when a single zygote splits into two parts, leading to the development of two genetically identical individuals. Choices A, C, and D are incorrect because they do not accurately describe the scenario where a single zygote splits into two parts to form identical twins. Dizygotic twin (Choice A) refers to fraternal twins, which result from two separate eggs fertilized by two different sperm cells. Fraternal twin (Choice C) is another term for dizygotic twins, arising from two separate zygotes. Nonidentical twin (Choice D) is a synonymous term for dizygotic or fraternal twins, indicating that they are not genetically identical.
5. Down syndrome is caused by ________.
- A. a chemical imbalance.
- B. a gene on the X chromosome.
- C. possessing an extra X chromosome.
- D. possessing an extra chromosome in chromosome 21.
Correct answer: D
Rationale: Down syndrome is caused by possessing an extra chromosome in chromosome 21, not by a chemical imbalance (choice A), a gene on the X chromosome (choice B), or possessing an extra X chromosome (choice C). The presence of an additional chromosome 21 disrupts the normal course of development and leads to the characteristics associated with Down syndrome.
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