Watson reported moderate correlations between the Iowa Sleep Experience Survey and self-report measures of dissociation and schizotypy. Subsequent investigations reported similar, although somewhat more modest, correlations between the ISES and measures of dissociation and schizotypy, as well as with measures of absorption and negative affect. The present study tested subjects in conditions in which the measures of sleep experiences were administered with other measures in either the same or a different test context. We determined that sleep experiences were associated with (...) measures of dissociation, absorption, and schizotypy. We closely replicated Watson and found that the ISES correlations with other measures were not affected by the test context. We suggest that Watson’s hypothesized common domain of unusual cognitive and perceptual experiences may be underpinned by common ties to imaginative experiences. (shrink)

The present study examined the trait-like nature of hypnotic suggestibility by examining the stability of hypnotic responsiveness in a test–retest design in which the procedures were administered either live or by audiotape. Contrary to the idea that hypnotizability is a largely immutable, stable trait, scores on the scale of hypnotic responsiveness decreased significantly at the second session. Measures of subjective experiences and expectancies accounted for a sizable portion of the variance in hypnotic responding, both at initial test and at retest. (...) Participants became disengaged with the hypnotic procedures at retest. Participants who received the hypnotic induction by audiotape did not differ from participants who received it live. The results are consistent with sociocognitive and altered state theories of hypnosis, and underline the important role of subjective experiences in hypnotic responding. (shrink)