title: Impact of adolescent social experiences on behavior and neural circuits implicated in mental illnesses.
abstract: Negative social experiences during adolescence are central features for several stress-related mental illnesses. Social play fighting behavior in rats peaks during early adolescence and is essential for the final maturation of brain and behavior. Manipulation of the rat adolescent social experience alters many neurobehavioral measurements implicated in anxiety, depression, and substance abuse. In this review, we will highlight the importance of social play and the use of three separate social stress models (isolation-rearing, social defeat, and social instability stress) to disrupt the acquisition of this adaptive behavior. Social stress during adolescence leads to the development of anxiety and depressive behavior as well as escalated drug use in adulthood. Furthermore, sex- and age-dependent effects on the hormonal stress response following adolescent social stress are also observed. Finally, manipulation of the social experience during adolescence alters stress-related neural circuits and monoaminergic systems. Overall, positive social experiences among age-matched conspecifics during rat adolescence are critical for healthy neurobehavioral maturation.
authors.affiliation: Department of Psychiatry, Indiana University School of Medicine, 320 West 15th Street, Indianapolis, IN, 46202, USA. Electronic address: aburke01@gmail.com.
authors.forename: Andrew R
authors.initials: AR
authors.lastname: Burke
authors.affiliation: Centre for Neuroscience, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario, L2S 3A1, Canada.
authors.forename: Cheryl M
authors.initials: CM
authors.lastname: McCormick
authors.affiliation: Department of Neuroscience, University of Lethbridge, 4401 University Drive, Lethbridge, Alberta, T1K3M4, Canada.
authors.forename: Sergio M
authors.initials: SM
authors.lastname: Pellis
authors.affiliation: Department of Psychiatry, Indiana University School of Medicine, 320 West 15th Street, Indianapolis, IN, 46202, USA.
authors.forename: Jodi L
authors.initials: JL
authors.lastname: Lukkes
mesh_terms: D000223:Adaptation, Psychological; D000293:Adolescent; D000818:Animals; D001007:Anxiety; D001921:Brain; D003863:Depression; D006801:Humans; D012919:Social Behavior; D013315:Stress, Psychological
keywords: Addiction; Adolescence; Amphetamine; Anxiety; Cocaine; Corticosterone; Corticotropin-releasing factor; Depression; Dopamine; Dorsal raphe nucleus; Hypothalamic-pituitary-adrenal axis; Isolation rearing; Medial prefrontal cortex; Play fighting; Self-administration; Serotonin; Social defeat; Social interaction; Social isolation; Social stress; Substance abuse