She has recently been conducting fieldwork in Indonesia (Kalimantan) on the adult-infant social relations in Macaca fascicularis (crab-eating macaque). She is the author of a study of visual and vocal communication in Macaca sylvanus in Primates: recherches actuelles. J.J. Roeder and J.R. Anderson (eds.) Paris: Masson (1990). Among her other publications are: Evidence of Structure in Macaque Communication. In: The Ethological Roots of Culture. R.A. Gardner, B. Gardner, and B. Chiavelli (Eds.) Netherlands: Kluwer Academic Publishers, 1994. (15-39) and The interplay of kinship organization and facial communication in the Macaques. In: Evolution and Ecology of Macaque Societies. J.E. Fa and D.G. Lindberg (Eds.) New York: Cambridge University Press. (1996).