What best describes labile affect?

Labile affect is characterized by rapidly changing emotional expressions, where an individual may shift from one emotion to another in a short period of time. This phenomenon can be observed in various mental health conditions, such as mood disorders and certain neurological conditions, where individuals exhibit a lack of stability in their emotional responses. The fluctuating nature of labile affect can make it challenging to predict a person's emotional state, contributing to a more complex understanding of their mental health.

In contrast, the other options describe different emotional states that do not align with the concept of labile affect. A consistent emotional display suggests stability and predictability, equal emotional responses imply uniformity in feelings, and limited emotional expression indicates a reduction in affect, none of which capture the essence of the rapid emotional variations seen in labile affect.