Which type of learning is characterized by a lack of response to a stimulus after repeated exposure?

The correct answer is habituation, which is a type of learning that occurs when an organism reduces its response to a stimulus after repeated exposure. This process allows organisms to ignore unimportant stimuli and focus their attention on more relevant changes in their environment. For example, if a loud noise occurs repeatedly in a specific environment, an individual may initially respond to it but gradually stop reacting over time as they learn that the noise is not harmful.

In contrast, classical conditioning involves learning through the association of a neutral stimulus with an unconditioned stimulus to elicit a conditioned response. Operant conditioning is based on the consequences of behavior, where positive or negative reinforcements influence whether a behavior is repeated. Insight learning refers to a sudden realization or understanding of how to solve a problem, which does not fit the context of repeated exposure to a stimulus. Understanding the characteristics of each type of learning is crucial for recognizing their distinct processes and applications in behavioral psychology.