what neurotransmitter was first believed to be the cause of schizophrenia
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Exam 4 Psychology 101

1. 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.

2. What is the diathesis-stress model of psychopathology?

Correct answer: D

Rationale: The diathesis-stress model of psychopathology posits that individuals must have a vulnerability or predisposition to a disorder (diathesis) and be exposed to stressful environmental factors for the disorder to manifest. This model emphasizes the interaction between genetic or biological vulnerabilities (diathesis) and environmental stressors. Choice A is incorrect because the model does not suggest that stress is the sole cause of psychopathology. Choice B is incorrect as the model considers both genetic predispositions and environmental stressors. Choice C is incorrect because the diathesis-stress model acknowledges the role of both genetic and environmental factors in the development of disorders.

3. Alicia, 5 years old, knows that she will take a bath at 6:05, change clothes at 6:15, eat breakfast at 6:20, commute to school at 6:40, and join the assembly at 7:00. A child's awareness of his or her scripts or daily routine is classified under which type of memory?

Correct answer: D

Rationale: The correct answer is D, Autobiographical memory. Autobiographical memory refers to the memory of a person's life events, such as daily routines and personal experiences. In this scenario, Alicia's awareness of her daily routine falls under autobiographical memory as she remembers specific events related to her own life. Choices A, B, and C are incorrect. Semantic memory is related to general knowledge about the world, nondeclarative memory involves memories that are not consciously recalled, and generic memory is not a recognized memory classification.

4. The genetic influences that determine behavior may never be fully understood due to ________

Correct answer: B

Rationale: The correct answer is B because most behaviors are influenced by a complex interaction of many genes and the environment. Choice A is incorrect because it states that it is easy to differentiate between the effects of the environment and genes, which is not the case. Choice C is incorrect because although twin studies are commonly used in genetic research, this alone does not hinder the full understanding of genetic influences on behavior. Choice D is incorrect because even though we have some understanding of how genes impact brain chemistry, this does not mean that we fully understand the genetic influences on behavior.

5. ______________ are conditions that increase the probability of a disorder but are neither necessary nor sufficient to cause it.

Correct answer: B

Rationale: The correct term for conditions that increase the probability of a disorder but are neither necessary nor sufficient to cause it is 'Contributory causes.' Risk factors (Choice A) are conditions that increase the likelihood of a negative outcome but do not imply causation. Sufficient causes (Choice C) are conditions that guarantee the occurrence of a disorder by themselves. Protective factors (Choice D) decrease the likelihood of a disorder rather than increasing it.

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