what are some common methods used to study genetic influences on behavior
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Psychology 2301 Exam 1

1. What are some common methods used to study genetic influences on behavior?

Correct answer: B

Rationale: Common methods used to study genetic influences on behavior include twin studies, adoption studies, and gene mapping. Twin studies help to compare the similarities between identical and fraternal twins to estimate the heritability of a trait. Adoption studies look at the similarities between adopted children and their biological and adoptive parents to determine genetic influences. Gene mapping involves identifying specific genes associated with certain behaviors. Choices A, C, and D are incorrect because genetic influences on behavior are not solely studied through twin studies or family history, and while the understanding of genetic influences may vary, there are established methods to study them.

2. What neurotransmitter was first believed to be the cause of schizophrenia?

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. Which of the following is a common effect of persistent discrimination?

Correct answer: C

Rationale: The correct answer is C: Cardiovascular reactivity. Persistent discrimination can have negative impacts on an individual's physical health, leading to increased cardiovascular reactivity. This can manifest as higher blood pressure, heart rate, and overall stress on the cardiovascular system. Choices A, B, and D are incorrect because persistent discrimination typically does not result in increased happiness, greater intelligence and wisdom, or increased consciousness. Instead, it often leads to detrimental effects on mental and physical health.

4. Infant characteristics ________.

Correct answer: D

Rationale: Infant characteristics can indeed influence the quality of attachment relationships. Parents often respond to their infants based on their characteristics, temperament, and needs. This interaction shapes the attachment bond between the parent and the child. Choices A, B, and C are incorrect because infant characteristics do have an impact on parental behavior and are influenced by various factors, including biological ones.

5. Professor Immel believes that behaviors that are predominant in certain species probably serve some adaptive function. Professor Immel's beliefs are most consistent with which perspective?

Correct answer: D

Rationale: Professor Immel's belief that behaviors in certain species serve an adaptive function aligns with the evolutionary perspective. The evolutionary perspective posits that behaviors have developed over time because they provide an advantage for survival and reproduction. This perspective emphasizes the role of natural selection in shaping behaviors based on their adaptive value. Choices A, B, and C do not specifically address the idea that behaviors have evolved to serve specific functions for survival, making them inconsistent with Professor Immel's beliefs.

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