1. Which neurotransmitter is commonly associated with the regulation of mood and emotion? A. Serotonin B. Acetylcholine C. Dopamine D. GABA Answer: A. Serotonin Rationale: Serotonin is a neurotransmitter that plays a key role in regulating mood, emotion, and sleep. 2. Which of the following is a key function of the cerebellum? A. Regulation of body temperature B. Coordination of movement C. Speech and language D. Memory storage Answer: B. Coordination of movement Rationale: The cerebellum is responsible for coordinating voluntary movements and maintaining balance and posture. 3. Which part of the brain is responsible for the integration of sensory information? A. Hippocampus B. Hypothalamus C. Thalamus D. Amygdala Answer: C. Thalamus