Jonas Langer, Professor

Selected Publications

Langer, J. (1969). Theories of Development. New York: Holt, Reinhart, & Winston.

Langer, J. (1980). The Origins of Logic: Six to Twelve Months. New York: Academic Press.

Langer, J. (1986). The Origins of Logic: One to Two Years. New York: Academic Press.

Schlesinger, M. & Langer, J. (1999). Infants' developing expectations of possible and impossible tool-use events between ages 8 and 12 months. Developmental Science, 2, 196-206.

Rivera, S.M., Wakeley, A. & Langer, J. (1999). The drawbridge phenomenon: Representational reasoning or perceptual preference. Developmental Psychology, 35, 427-435.

Poti, P., Langer, J., Savage-Rumbaugh, s. & Brakke, K.E. (1999). Spontaneous logicomathematical constructions by chimpanzees (Pan trogladytes, Pan paniscus). Animal Cognition, 2, 147-156

Spinozzi, G., Natale, F., Langer, J. & Brakke, K.E. (1999). Spontaneous class grouping behavior by bonobos (Pan paniscus) and common chimpanzees (Pan troglodytes). Animal Cognition, 2, 157-170.

Spinozzi, G., & Langer, J. (1999). Spontaneous classification in action by a human-enculturated and language-reared bonobo (Pan paniscus) and common chimpanzees (Pan troglodytes). Journal of Comparative Psychology, 113, 286-296.

Langer, J. (2000). The descent of cognitive development. Developmental Science, 3, 361-378.

Langer, J., Rivera, S., Schlesinger, M., & Wakeley, A. (2003). Early cognitive development: Ontogeny and phylogeny. In J. Valsiner & K. Connoly (Eds.), Hanbook of Development Psychology. London: Sage.

Langer, J., Gillette, P., & Arriage, R. (2003). Toddlers' development of adding and subtracting objects. Cognitive Development, 18, 233-246. 

JONAS LANGER Publications, October 2003