What term refers to the process where a dog stops responding to a stimulus after repeated exposure?

The correct term for the process where a dog stops responding to a stimulus after repeated exposure is habituation. Habituation is a fundamental learning process in which an animal learns to ignore stimuli that are inconsequential or repetitive. Over time, as the dog experiences the same stimulus without any significant consequence or reward, it becomes less responsive to that stimulus.

This process is crucial for helping animals filter out distractions from their environment that do not pose any threat or opportunity. For example, if a dog consistently hears a noise that does not lead to any positive or negative outcome, it will eventually learn to disregard that noise as unimportant.

While the other terms such as learned irrelevance and sensitization are related to learning and responses, they refer to different aspects of behavior modification and do not accurately describe the specific process of a dog becoming indifferent to an unchanging stimulus due to repeated exposure.