What is impulsive behavior?

Correct Answer: B

Rationale: The correct answer is B because impulsive behavior is characterized by acting without thinking about consequences. Impulsive individuals often act on their immediate desires or emotions without considering the potential outcomes or risks involved. This behavior is typically spontaneous and lacks careful planning or consideration. Choices A, C, and D are incorrect because impulsive behavior is not associated with careful planning, risk avoidance, or adherence to social norms. Instead, it is marked by a lack of forethought and consideration of consequences.

Correct Answer: B

Rationale: The correct answer is B: Parkinson's disease. Dopamine decrease is associated with Parkinson's disease due to the degeneration of dopamine-producing neurons in the brain. This results in motor symptoms such as tremors and rigidity. In schizophrenia, dopamine levels are actually elevated, contributing to symptoms like hallucinations and delusions. Depression is linked to decreased levels of serotonin and norepinephrine, not dopamine. Anxiety is also more closely related to imbalances in serotonin and norepinephrine levels, rather than dopamine.

Correct Answer: A

Rationale: The correct answer is A because norepinephrine is indeed a neurotransmitter involved in mood regulation. It plays a crucial role in controlling alertness, attention, and mood. Norepinephrine is released during the body's stress response, helping to regulate fight-or-flight responses. Choice B is incorrect as norepinephrine primarily affects mood rather than cognition and motivation. Choice C is incorrect because norepinephrine is not primarily involved in pain perception and muscle relaxation. Choice D is incorrect as norepinephrine is not mainly linked to learning and memory processes.

Correct Answer: A

Rationale: The correct answer is A: Reduction in anxiety. GABA is an inhibitory neurotransmitter that helps regulate anxiety by reducing neuronal excitability. Increased GABA levels can lead to a calming effect, thus reducing anxiety. Choice B is incorrect as GABA does not increase anxiety, mania, or schizophrenia. Choice C is incorrect as GABA is not directly associated with depression. Choice D is incorrect as GABA dysfunction is not a primary factor in Parkinson's disease.

Correct Answer: B

Rationale: The correct answer is B because secondary prevention focuses on reducing the impact of a disease that has already occurred. It involves early detection, screening, and treatment to prevent the disease from progressing further. Other choices are incorrect because: A: Preventing disease before it occurs refers to primary prevention. C: Softening the impact of an ongoing illness or injury is more related to tertiary prevention. D: Treating existing diseases is a broad term that encompasses both secondary and tertiary prevention.