Understanding the Diagnostic Skills of "yachactaita" (Quichua Healers of the Andes). 2006. Runajambi Institute for the Study of Quichua Culture and Health.  Funded by the John Simon Guggenheim Memorial Foundation, New York, USA.

Défi verbal et auto-analgésie; une étude psychophysiologique chez les Quichuas. Department of Psychiatry, Université de Montréal, 2006. Funded by FCAR, Quebec, Canada.

Screening Clinically Promising Healing Practices Among Native Americans of California.  1999. Brain, Mind, and Medicine: Cross-Cultural Perspectives Program. Pitzer, Claremont McKenna, and Harvey Mudd Colleges, California. Funded by the The John Randolph Haynes and Dora Haynes Foundation.

Tongva Medicinal Plants: A Web-Based Catalog.  2000. Brain, Mind, and Medicine: Cross-Cultural Perspectives Program. Pitzer, Claremont McKenna, and Harvey Mudd Colleges, California.  Funded in part by The Strategic Initiative Fund, Pitzer College and The John Randolph Haynes and Dora Haynes Foundation.

Llaqui and Depression: Exloration of a Quichua Illness Cluster. Department of Psychiatry, McGill University, 1992. Funded by FCAR, Quebec, Canada, and in part by the Ministry of Health, Ecuador.