The authors recount their extensive Rorschach research among the Menominees of Wisconsin, which was inspired by Hallowell's Rorschach work with the Chippewa and Ojibwa. The Spindlers' studies confirmed Hallowell's hypothesis of a northeast woodland psychological configuration. They also confirmed that this configuration persisted through different transitional acculturative adaptations. Extensions of Hallowell's work included the study of a socioeconomic elite and a peyote cult group. They also devised a precise statistically bound definition of acculturation and analyzed male and female samples separately. In addition, they studied individuals in depth through autobiographical case studies.