pruning is best defined as

ATI RN

Exam 4 Psychology

1. How is pruning best defined?

A. The process of eliminating unused synapses
B. The process of synapse development
C. The connection between neurons
D. Fatty sheath that wraps around neurons and enables them to transmit information more rapidly

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.

2. Latresha is not hungry, is extremely tired, and doesn't feel like doing much of anything. She often feels that life is just hopeless. These symptoms have been going on for 2 months now. She probably is suffering from which mood disorder?

A. Generalized anxiety disorder
B. Bipolar disorder
C. Major depressive disorder
D. Obsessive-compulsive disorder

Correct answer: C

Rationale: The correct answer is C, Major Depressive Disorder. Latresha's symptoms of prolonged sadness, fatigue, and lack of interest in activities lasting for 2 months indicate a major depressive episode. Generalized anxiety disorder (A) is characterized by excessive worry and anxiety, not necessarily prolonged sadness. Bipolar disorder (B) involves episodes of both mania and depression, not solely prolonged sadness. Obsessive-compulsive disorder (D) is characterized by obsessions and compulsions, not the symptoms described in the scenario.

3. How does the diathesis-stress model explain the onset of mental disorders?

A. Stress alone is sufficient to cause mental disorders.
B. Both genetic vulnerability and environmental stress are needed to trigger a disorder.
C. Only genetic factors cause mental disorders.
D. Environmental stressors alone can cause mental disorders.

Correct answer: B

Rationale: The diathesis-stress model explains that the onset of mental disorders results from the interaction of genetic vulnerability (diathesis) and environmental stress. Choice A is incorrect because stress alone is not sufficient, according to the model. Choice C is incorrect as it oversimplifies by attributing mental disorders solely to genetic factors. Choice D is incorrect because the model emphasizes the joint contribution of genetic predisposition and environmental stress.

4. Which psychosexual stage focuses on castration anxiety?

A. Genital
B. Oral
C. Anal
D. Phallic

Correct answer: D

Rationale: Castration anxiety is a concept from Freudian psychoanalytic theory that occurs during the Phallic stage. This stage occurs between 3 to 6 years of age and is when children experience conflicts related to the Oedipus complex (boys) and Electra complex (girls). During this stage, children may fear castration (in boys) or penis envy (in girls), which are crucial components of castration anxiety. Therefore, the correct answer is Phallic. The other options (A: Genital, B: Oral, C: Anal) are incorrect as they do not specifically involve castration anxiety but rather represent different stages in Freud's psychosexual development theory.

5. Alison believes that individuals learn to be either aggressive or nonaggressive as a result of the experiences they have. Alison's views are most consistent with which view in psychology?

A. Behaviorist view of psychology.
B. Structuralist view of psychology.
C. Functionalist view of psychology.
D. Psychoanalytic view of psychology.

Correct answer: A

Rationale: Alison's belief that individuals learn to be either aggressive or nonaggressive as a result of their experiences aligns with the Behaviorist view of psychology. Behaviorism focuses on how behavior is learned through interactions with the environment, emphasizing the role of experience in shaping behavior. The other options are not directly related to the idea that behavior is learned through experiences: Structuralism focuses on the structure of conscious experience, Functionalism emphasizes the purpose of behavior, and Psychoanalytic theory focuses on the role of unconscious processes.