Emotion are feeling states that involve a pattern of cognitive, physiological, and behavioral reaction to event.
Eliciting stimuli
Cognitive appraisals process
Physiological arousal
Expressive behaviors
Instrumental behavior
Infancy
Toddlerhood and Early childhood
Middle and Late childhood
Adolescence
Adult
Old age
smiles occur early, but the earliest ones are more likely reflexive than social.
Crying is a powerful emotion for infants and may be used as a communication tool.
Distress, pleasure, anger, fear, and interest are among the earliest emotions that infants express.
Laughter begins at about 3 to 4 months of age.
Fear begins to emerge.
fetus