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I am interested in social cognitive development and related topics. My main lines of research concern children and adults' reasoning about: 1) ownership of property; 2) pretense and fiction; and 3) mental states.My profile on Google Scholar is here. The homepage for my lab (UWaterloo Child Cognition Lab) is here.
Journal Articles and
Nancekivell, S.E. & Friedman, O. (in press). Preschoolers selectively infer history when explaining outcomes: Evidence from explanations of ownership, liking, and use. Child Development.
Nancekivell, S.E., Van de Vondervoort, J.W., & Friedman, O. (in press). Young children’s understanding of ownership. Child Development Perspectives.
Neary, K.R. & Friedman, O. (in press). Young children give priority to ownership when judging who should use an object. Child Development.
Starmans, C. & Friedman, O. (in press). Taking 'know' for an answer: A reply to Nagel, San Juan, and Mar. Cognition.
Turri, J. & Friedman, O. (in press). Winners and losers in the folk epistemology of lotteries. In J. Beebe (Ed.), Advances in experimental epistemology. New York: Continuum.
Malcolm, S.L., Defeyter, M.A., & Friedman, O. (in press). Children and adults use gender- and age-stereotypes in ownership judgments. Journal of Cognition and Development.
Friedman, O. (2013). How do children represent pretend play. In M. Taylor (Ed.), Oxford handbook of the development of imagination (pp. 186-195). New York: Oxford University Press.
Friedman, O, Van de Vondervoort, J.W., Defeyter, M.A., & Neary, K.R. (2013). First possession, history, and young children’s ownership judgments. Child Development, 84, 1519-1525.
Neary, K.R. & Friedman, O. (2013). The origin of children’s appreciation of ownership rights. M.R. Banaji & S.A. Gelman (Eds.), Navigating the social world: What infants, children, and other species can teach us (pp. 356-360). New York: Oxford University Press.
Sutherland, S.L. & Friedman, O. (2013). Just pretending can be really learning: Children use pretend-play as a source for acquiring generic knowledge. Developmental Psychology, 49, 1660-1668.
Palamar, M., Le, D.T., Friedman, O. (2012). Acquiring ownership and the attribution of responsibility. Cognition, 124, 201-208.
Starmans, C. & Friedman, O. (2012). The folk conception of knowledge. Cognition, 124, 272-283.
Neary, K.R., Van de Vondervoort, J.W., & Friedman, O. (2012). Artifacts and natural kinds: Children's judgments about whether objects are owned. Developmental Psychology, 48, 149-158. PDF
Sutherland, S. & Friedman, O. (2012). Preschoolers acquire general knowledge by sharing in pretense. Child Development, 83, 1064-1071.
Friedman, O., Neary, K.R., Defeyter, M.A., & Malcolm, S.L. (2011). Ownership and object history. New Directions for Child and Adolescent Development, 132, 79-89.
Friedman, O. & Ross, H. (2011). Twenty-one reasons to care about the psychological basis of ownership. New Directions for Child and Adolescent Development, 132, 1-8.
Petrashek, A.R. & Friedman, O. (2011). The signature of inhibition in theory of mind: Children’s predictions of behavior based on avoidance desire. Psychonomic Bulletin and Review, 18, 199-203.
Baker, S., Friedman, O., & Leslie, A.M. (2010). The opposites task: Using general rules to test cognitive flexibility in preschoolers. Journal of Cognition and Development, 11, 240-254.
Friedman, O. (2010). Necessary for possession: How people reason about the acquisition of ownership. Personality and Social Psychology Bulletin, 36, 1161-1169.
Friedman, O., Neary, K.R., Burnstein, C.L., & Leslie, A.M. (2010). Is young children's recognition of pretense metarepresentational or merely behavioral? Evidence from 2- and 3-year-olds' understanding of pretend sounds and speech. Cognition, 115, 314-319.
Neary, K.R., Friedman, O., & Burnstein, C.L. (2009). Preschoolers infer ownership from “control of permission”. Developmental Psychology, 45, 873-876.
Friedman, O. & Neary, K.R. (2009). First possession beyond the law: Adults' and young children's intuitions about ownership. Tulane Law Review, 83, 679-690.
Friedman, O. & Petrashek, A.R. (2009). Children do not follow the rule ‘ignorance means getting it wrong’. Journal of Experimental Child Psychology, 102, 114-121.
Friedman, O. (2008). First possession: An assumption guiding inferences about who owns what. Psychonomic Bulletin & Review, 15, 290-295.
Friedman, O., & Neary, K.R. (2008). Determining who owns what: Do children infer ownership from first possession? Cognition, 107, 829-849.
Friedman, O., & Leslie, A.M. (2007). The conceptual underpinnings of pretense: Pretending is not 'behaving-as-if'. Cognition, 105, 103-124.
Bosco, F.M., Friedman, O., & Leslie, A.M. (2006). Recognition of pretend and real actions in play by one- and two-year-olds: Early success and why they fail. Cognitive Development, 21, 3-10. PDF
Griffin, R., Friedman, O., Ween, J., Winner, E., Happé, F. & Brownell, H. (2006). Theory of Mind and the Right Cerebral Hemisphere: Refining the scope of impairment. Laterality, 11, 195-225. PDF
Friedman, O., & Leslie, A.M. (2005). Processing demands in belief-desire reasoning: Inhibition or general difficulty? Developmental Science, 8, 218-225. PDF
Friedman, O., & Leslie, A.M. (2004). A developmental shift in processes underlying successful belief-desire reasoning. Cognitive Science, 28, 963-977. PDF
Leslie, A.M., Friedman, O., & German, T. P. (2004). Core mechanisms in 'theory of mind.' Trends in Cognitive Sciences, 8, 528-533. PDF
Friedman, O. & Leslie, A.M. (2004). Mechanisms of belief-desire reasoning: Inhibition and bias. Psychological Science, 15, 547-552. PDF
Friedman, O., Griffin, R., Brownell, H. & Winner, E. (2003). Problems with the seeing = knowing rule. Developmental Science, 6, 505-513. PDF.
Brownell, H., & Friedman, O. (2001). Discourse ability in patients with unilateral left and right hemisphere brain damage. In R. S. Berndt (Ed.), Handbook of neuropsychology, 2nd edition, Vol. 3. (pp. 189-203). Amsterdam: Elsevier.
Brownell, H., Griffin, R., Winner, E., Friedman, O., & Happe, F. (2000). Cerebral lateralization and theory of mind. In S. Baron-Cohen, H. Tager-Flusberg, & D. J. Cohen (Eds.), Understanding other minds: Perspectives from autism and developmental cognitive neuroscience, 2nd edition (pp. 311-338). Oxford: Oxford University Press.