Nursing Elites

1. 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.

2. How does the concept of neural plasticity relate to recovery from brain injuries?

• A. Neural plasticity means the brain cannot recover from injuries.
• B. Neural plasticity allows the brain to recover and reorganize after injuries.
• C. Neural plasticity refers to the brain's inability to change after injury.
• D. Neural plasticity is a myth.

Correct answer: B

Rationale: Neural plasticity allows the brain to recover and reorganize after injuries. It is the brain's ability to adapt and change, forming new connections or reorganizing existing ones to compensate for damage. Choice A is incorrect as neural plasticity enables recovery. Choice C is incorrect as neural plasticity involves the brain's capacity to change. Choice D is incorrect as neural plasticity is a well-established phenomenon in neuroscience.

3. Children raised in orphanages tend to have ________.

• A. more cortical gray matter than those raised by their parents.
• B. less cortical gray matter than those raised by their parents.
• C. more friendships than those raised by their parents.
• D. fewer friendships than those raised by their parents.

Correct answer: B

Rationale: The correct answer is B: 'less cortical gray matter than those raised by their parents.' Studies have shown that children raised in orphanages tend to have less cortical gray matter compared to those raised by their parents. This is due to the lack of individualized care, attention, and stimulation that can negatively impact brain development. Choices A, C, and D are incorrect because there is no direct correlation between cortical gray matter and the number of friendships when comparing children raised in orphanages and those raised by their parents.

4. What are genes made of?

• A. Trisomes
• B. Chromosomes
• C. DNA
• D. Proteins

Correct answer: C

Rationale: Genes are made of DNA, which is the genetic material that carries the instructions for the development, functioning, growth, and reproduction of organisms. While chromosomes contain genes, they are not what genes themselves are made of. Proteins are involved in gene expression and regulation, but they are not the primary material genes consist of. Trisomes is an incorrect term in this context and does not relate to the composition of genes.

5. Which approach contends that psychology must study internal mental events to fully understand behavior?

• A. Behaviorism.
• B. Cognitive psychology.
• C. Evolutionary psychology.
• D. Humanism.

Correct answer: B

Rationale: The correct answer is B, Cognitive psychology. Cognitive psychology focuses on studying internal mental processes like perception, memory, and problem-solving to understand behavior. Behaviorism (choice A) emphasizes observable behavior over internal mental processes. Evolutionary psychology (choice C) examines how evolutionary principles influence behavior, not solely focusing on internal mental events. Humanism (choice D) emphasizes personal growth and self-actualization rather than internal mental events as the primary focus of study.

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