title: Toy story: why do monkey and human males prefer trucks? Comment on "Sex differences in rhesus monkey toy preferences parallel those of children" by Hassett, Siebert and Wallen.
authors.affiliation: Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA. williams@psych.duke.edu
authors.forename: Christina L
authors.initials: CL
authors.lastname: Williams
authors.forename: Kristen E
authors.initials: KE
authors.lastname: Pleil
mesh_terms: D000728:Androgens / Q000502:physiology*; D000818:Animals; D001288:Attention / Q000502:physiology; D001921:Brain / Q000502:physiology; D002648:Child; D002755:Choice Behavior / Q000502:physiology; D004967:Estrogens / Q000502:physiology*; D005260:Female; D006801:Humans; D008253:Macaca mulatta / Q000502:physiology* / Q000523:psychology; D008297:Male; D009949:Orientation / Q000502:physiology; D010988:Play and Playthings; D011597:Psychomotor Performance / Q000502:physiology; D012727:Sex Characteristics; D012951:Socialization
chemical_list: D000728:Androgens; D004967:Estrogens