Final answer:
Experiencing more negative perceptions when tired, stressed, or sick is an example of mood-congruent perception, where our current mood state influences our perception and interpretation.
Step-by-step explanation:
When you are tired, stressed, or sick, and you perceive things more negatively than when you are well-rested, this is an example of mood-congruent perception. This means that the way we interpret and perceive the world can be heavily influenced by our current emotional state. In a well-rested and positive mood, perceptions tend to be more favorable, whereas fatigue, illness, or stress can result in a more negative interpretation of situations and behaviors around us. This phenomenon is rooted in the concept that our mood states can influence the cognitive processes of perception and interpretation.