The assessment of hypnoidal states: rationale and clinical application

We used a self-report questionnaire, the Phenomenology of Consciousness Inventory (PCI), to generate predicted Harvard Group Scale (pHGS) scores that we can use to estimate the hypnoidal state of a person. Using a case-study approach, we used the PCI to generate pHGS scores with two patients referred to a biofeedback clinic for specific problems. The results suggest that the PCI may present a useful means to assess the hypnoidal state (associated with a given stimulus condition) that a person experiences.