What term describes the return to an earlier age level of behavior or emotional adjustment?

The term that describes the return to an earlier age level of behavior or emotional adjustment is regression. This psychological phenomenon often occurs during times of stress or anxiety, where an individual may revert to behaviors that are more characteristic of a younger developmental stage. For instance, an adult might exhibit childlike behaviors when faced with difficult situations, such as throwing tantrums or seeking comfort items from childhood.

Regression serves as a defense mechanism that allows individuals to escape from challenging or overwhelming feelings by temporarily relinquishing more mature coping strategies. Understanding this concept is essential in psychology as it can provide insights into how individuals respond to stress and the potential need for support or intervention when they display such behaviors.