title: Response to Helfinstein & Casey.
authors.affiliation: University of California, Institute of Human Development, Berkeley, CA 94707, United States. Electronic address: rondahl@berkeley.edu.
authors.forename: Ronald E
authors.initials: RE
authors.lastname: Dahl
authors.affiliation: University of California, Institute of Human Development, Berkeley, CA 94707, United States.
authors.forename: Jeffrey M
authors.initials: JM
authors.lastname: Spielberg
mesh_terms: D041923:Adolescent Development; D001362:Avoidance Learning / Q000502:physiology*; D005239:Fear / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D011627:Puberty / Q000523:psychology*