Correct Answer: D

Rationale: Localized amnesia refers to the inability to recall all events during a specific period of time. This type of amnesia is characterized by the loss of memories related to a particular incident or period, while other memories remain intact. Choices A, B, and C are incorrect because they refer to different types of amnesia. Systematized amnesia is a term used to describe a selective loss of memory related to a specific category of information or knowledge. Selective amnesia involves the conscious or unconscious blocking out of specific memories, often due to psychological reasons. Collective amnesia pertains to a lack of shared memory or historical awareness within a group or society.

Correct Answer: D

Rationale: The correct answer is D. Behaviorists argue that psychology should focus on observable behavior that can be studied objectively. Choice A is incorrect because behaviorists do not typically focus on conscious experiences, as they are not directly observable. Choice B is incorrect because behaviorists emphasize that behavior can be understood without delving into internal motives. Choice C is incorrect as behaviorists do not exclusively explain behavior through an individual's interpretation of experience; they focus on observable actions and reactions.

Correct Answer: D

Rationale: The correct answer is D, Serotonin. Serotonin levels are reduced during both the manic and depressive phases of bipolar disorder. Acetylcholine (choice A) is not typically linked to bipolar disorder. Dopamine (choice B) and norepinephrine (choice C) are more commonly associated with conditions like schizophrenia and depression, respectively, rather than bipolar disorder. Therefore, they are not the neurotransmitters reduced in both manic and depressive phases of bipolar disorder.

Correct Answer: A

Rationale: The correct answer is A, Functionalism. Functionalism, founded by William James, emphasizes understanding the purpose and adaptive function of behavior. This school of psychology focuses on how mental processes help individuals adapt to their environment. Choice B, Behaviorism, is incorrect as behaviorism emphasizes observable behaviors rather than the purpose behind them. Choice C, Neodynamism, is not a recognized school of psychology. Choice D, Psychoanalysis, founded by Sigmund Freud, focuses on unconscious processes and early childhood experiences, not specifically on the purpose of behavior.

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.