%0 Journal Article %T Brain Serotonin Synthesis in Adult Males Characterized by Physical Aggression during Childhood: A 21-Year Longitudinal Study %A Linda Booij %A Richard E. Tremblay %A Marco Leyton %A Jean R. S¨¦guin %A Frank Vitaro %A Paul Gravel %A Elisabeth Perreau-Linck %A M¨¦lissa L. L¨¦vesque %A France Durand %A Mirko Diksic %A Gustavo Turecki %A Chawki Benkelfat %J PLOS ONE %D 2012 %I Public Library of Science (PLoS) %R 10.1371/journal.pone.0011255 %X Adults exhibiting severe impulsive and aggressive behaviors have multiple indices of low serotonin (5-HT) neurotransmission. It remains unclear though whether low 5-HT mediates the behavior or instead reflects a pre-existing vulnerability trait. %U http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0011255