which of the following statements about brain dysfunction and psychiatric disorders is correct
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Psychology 101 Final Exam

1. Which of the following statements about brain dysfunction and psychiatric disorders is correct?

Correct answer: C

Rationale: The correct statement is C: 'Changes in brain function appear to play a role in many psychiatric disorders.' This statement is accurate as research suggests that alterations in brain function are associated with various psychiatric disorders. Option A is incorrect because while brain damage can contribute to some psychiatric conditions, it is not always the primary cause. Option B is incorrect as brain damage typically increases the risk of developing psychiatric disorders. Option D is incorrect because while brain development can be influenced by experiences, it does not always decrease the risk of psychiatric conditions.

2. One of Freud's major contributions to current perspectives of mental disorders is ________.

Correct answer: B

Rationale: Freud's major contribution to current perspectives of mental disorders is the concept of the unconscious and its influence on behavior. While the Oedipal complex (Choice A) and Electra complex (Choice C) are important psychoanalytic concepts introduced by Freud, they are more focused on childhood psychosexual development rather than mental disorders. The understanding of the three structures of personality (Choice D) refers to Freud's id, ego, and superego model, which is essential in psychoanalytic theory but not specifically related to mental disorders.

3. How is pruning best defined?

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.

4. What role do genetic predispositions play in the development of mental disorders?

Correct answer: B

Rationale: Genetic predispositions are indeed a factor in the development of mental disorders, but they are not the sole determining factor. While genetics can predispose individuals to certain conditions, environmental factors, lifestyle choices, and life experiences also play a significant role. Choice A is incorrect because mental disorders are influenced by a combination of genetic and environmental factors. Choice C is incorrect as genetic predispositions do have an impact on mental health. Choice D is incorrect as genetic predispositions do not guarantee the development of mental disorders, as other factors also contribute to their onset.

5. The baby coos and the mom smiles, so the baby coos again to get mom to smile again. Piaget would say that this action is an example of?

Correct answer: C

Rationale: The correct answer is C: Secondary circular reactions. Secondary circular reactions are repeated actions that infants engage in to trigger a response from the environment, such as the baby cooing to make the mom smile. This behavior is characterized by a focus on the external environment and the repetition of actions to achieve a desired response. Choices A, B, and D are incorrect. Reflexes (choice A) are automatic, involuntary responses to a stimulus, while primary circular reactions (choice B) involve the repetition of actions primarily for the infant's own enjoyment rather than to elicit a response from the environment. Tertiary circular reactions (choice D) refer to the experimentation with new behaviors and variations in the way the infant interacts with the environment.

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