• Anderson, J. R. (1990). Use of objects as hammers to open nuts by capuchin monkeys (Cebus apella). Folia Primatologica, 54, 138145.
  • Anderson, J. R., Sallaberry, P., & Hugo, B. (1995). Use of experimenter-given cues during object-choice tasks by capuchin monkeys. Animal Behaviour, 49, 201208.
  • Baron-Cohen, S. (1989). Perceptual role-taking and protodeclarative pointing in autism. British Journal of Developmental Psychology, 7, 379402.
  • Baron-Cohen, S. (1991). Precursors to a theory of mind: Understanding attention in others. In A.Whiten (Ed.), Natural theory of mind (pp. 233252). Oxford: Blackwell.
  • Box, H. O. (1984). Primate behaviour and social ecology. London: Chapman & Hall.
  • Butterworth, G., & Grover, L. (1990). Joint visual attention, manual pointing, and preverbal communication in human infancy. In M.Jeannerod (Ed.), Attention and performance XIII (pp. 605624). Hillsdale, NJ: Lawrence Erlbaum Associates.
  • Butterworth, G., & Jarret, N. (1991). What minds have in common is space: Spatial mechanisms serving joint visual attention in infancy. British Journal of Developmental Psychology, 9, 5572.
  • Byrne, R. W., & Whiten, A. (1991). The emergence of metarepresentation in human ontogeny and primate phylogeny. In A.Whiten (Ed.), Natural theory of mind (pp. 267283). Oxford: Blackwell.
  • Cheney, D. L., & Seyfarth, R. M. (1990). How monkeys see the world. New York: Cambridge University Press.
  • Chevalier-Skolnikoff, S. (1989). Spontaneous tool use and sensorimotor intelligence in Cebus compared with other monkeys and apes. Behavioral Brain Science, 12, 561627.
  • Fragaszy, D. M., & Visalberghi, E. (1990). Social processes influencing the appearance of innovative behavior in capuchin monkeys. Folia Primatologica, 54, 155165.
  • Grover, L. (1988). Comprehension of the manual pointing gesture in young infants. Unpublished doctoral thesis, University of Southampton.
  • Hall, K. R. (1963). Observational learning in monkeys and apes. British Journal of Psychology, 54, 291226.
  • Hobson, R. P. (1984). Early childhood autism and the question of egocentrism. Journal of Autism and Developmental Disorders, 14, 85104.
  • Itakura, S. (1994). Joint visual attention in humans and chimpanzees. Paper presented at the 58th Annual Convention of the Japanese Psychological Association (in Japanese).
  • Itakura, S. (1995). Joint visual attention in humans and monkeys. Paper presented at the meeting of Comparative Cognitive Development Subcommittee (in Japanese).
  • Itakura, S., & Anderson, J. R. (1996). Learning to use experimenter-given cues during object-choice tasks by a capuchin monkey. Current Psychology of Cognition, 15, 103112.
  • Masataka, N. (1944). Do monkeys speak language? Nikkei Science, 10, 1823 (in Japanese).
  • Menzel, E., & Halperin, S. (1975). Purposive behavior as a basis for objective communication in chimpanzees. Science, 189, 652654.
  • Miles, H. L. (1994). The development of self-awareness in a signing orangutan. In S. T.Parker, R. W.Mitchell & M.Boccia (Eds.), Self-awareness in animals and humans (pp. 254272). New York: Cambridge University Press.
  • Russon, A. E., & Galdikas, B. M. F. (1995). Constraints on great apes' imitation: Model and action selectivity in rehabilitant orangutan (Pongo pygmaeus) imitation. Journal of Comparative Psychology, 109, 517.
  • Scaife, M., & Bruner, J. S. (1975). The capacity for joint visual attention in the infant. Nature, 253, 265266.
  • Tan, J., & Harris, P. (1991). Children with autism understand seeing and wanting. Development and Psychopathology, 3, 163174.
  • Thomsen, C. E. (1974). Eye contact by nonhuman primates towards a human observer. Animal Behaviour, 22, 144149.