title: Prelude to a theme on emotion and gratitude.
authors.affiliation: Department of Psychology, University of California, Berkeley, Berkeley, CA 94720, USA.
authors.forename: Joseph J
authors.initials: JJ
authors.lastname: Campos
mesh_terms: D003071:Cognition; D003674:Defense Mechanisms; D004644:Emotions; D006801:Humans; D007206:Individuality; D007398:Interpersonal Relations; D010551:Personality; D011340:Problem Solving; D012931:Social Environment