Dissociation : Volume 10, No. 1 (March 1997)

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Dissociation : Volume 10, No. 1, p. 021-028 : Dissociativity, imagery vividness, and reality monitoring
(Ridgeview Institute and the International Society for the Study of Dissociation, 1997-03) Koppenhaver, Janelle M.; Kumar, V. K.; Pekala, Ronald J.
The study examined if dissociativity (the tendency to dissociate spontaneously) was related to a) reality monitoring (ability to distinguish actual from imagined events) and b) vividness of visual imagery ability. Participants (n = 220) completed the DissociativeExperiences Scale (DES), Questionnaire of Imagery Vividness, and completed a reality monitoring task that required subjects to view slides of common objects 2, 5, or 8 times and imagine them 2, 5, or 8 times at each presentation frequency level. Participants later estimated how often each stimulus was presented. An analysis of covariance (with imagery as covariate) revealed support for Johnson, Taylor, and Raye's (1977) finding of reality monitoring deficits. However, dissociativity (as measured by the DES) was unrelated to reality monitoring deficit. Furthermore, vividness of imagery scores and dissociativity were uncorrelated.