An event or stimulus that an organism escapes or avoids.

An event or stimulus that an organism escapes or avoids.

• A. Aversive Stimulus
• B. Punishment
• C. Reinforcement
• D. Motivation

Answer: (A)

An aversive stimulus is an event or stimulus that an organism finds unpleasant and will try to escape or avoid. This definition matches the idea that the stimulus itself is what triggers avoidance or escape behaviors. When the organism acts to escape or avoid this unpleasant event, that behavior is often strengthened through negative reinforcement—the removal or avoidance of the aversive stimulus increases the likelihood of the escape/avoidance response in the future. Reinforcement refers to the process that strengthens behavior (the consequence), not the unpleasant event itself. Punishment would involve something that decreases a behavior, and motivation is about internal drive, not the external aversive stimulus.

An aversive stimulus is an event or stimulus that an organism finds unpleasant and will try to escape or avoid. This definition matches the idea that the stimulus itself is what triggers avoidance or escape behaviors. When the organism acts to escape or avoid this unpleasant event, that behavior is often strengthened through negative reinforcement—the removal or avoidance of the aversive stimulus increases the likelihood of the escape/avoidance response in the future. Reinforcement refers to the process that strengthens behavior (the consequence), not the unpleasant event itself. Punishment would involve something that decreases a behavior, and motivation is about internal drive, not the external aversive stimulus.