It is a broad range of feelings that people experience.
Affect can be experienced in the form of emotions or moods
Positive Affect
A mood dimension that consists of specific positive emotions such as excitement, self-assurance, and cheerfulness at the high end and boredom, sluggishness and tiredness at the low end.
Negative affect
A mood dimension that consists of emotions such as nervousness, stress and anxiety at the high end and relaxation, tranquillity and control at the low end.
Mood
It is feelings that tend to be less intense than emotions and lack a contextual stimulus.
Cause is often general and unclear
Lasts longer than emotions (hours or days)
More general
Not indicated by distinct expressions (generally)
Cognitive in nature
Emotions
Intense feelings that are directed at someone or something.
Caused by a specific event
Very brief in duration
Specific and numerous in nature
Usually accompanied by distinct facial expressions
Action-oriented in nature
Emotions and moods can mutually influence each other