Interidentity memory transfer in dissociative identity disorder

Journal of Abnormal Psychology
Lauren L KongElizabeth L Glisky

Abstract

Controversy surrounding dissociative identity disorder (DID) has focused on conflicting findings regarding the validity and nature of interidentity amnesia, illustrating the need for objective methods of examining amnesia that can discriminate between explicit and implicit memory transfer. In the present study, the authors used a cross-modal manipulation designed to mitigate implicit memory effects. Explicit memory transfer between identities was examined in 7 DID participants and 34 matched control participants. After words were presented to one identity auditorily, the authors tested another identity for memory of those words in the visual modality using an exclusion paradigm. Despite self-reported interidentity amnesia, memory for experimental stimuli transferred between identities. DID patients showed no superior ability to compartmentalize information, as would be expected with interidentity amnesia. The cross-modal nature of the test makes it unlikely that memory transfer was implicit. These findings demonstrate that subjective reports of interidentity amnesia are not necessarily corroborated by objective tests of explicit memory transfer.

Citations

Jan 4, 2013·Journal of Trauma & Dissociation : the Official Journal of the International Society for the Study of Dissociation (ISSD)·Paul F Dell
Jan 1, 2013·The Journal of Nervous and Mental Disease·Guy A Boysen, Alexandra VanBergen
Jul 21, 2012·PloS One·Rafaële J C HuntjensRichard J McNally
Feb 12, 2013·Annual Review of Clinical Psychology·David SpiegelMatthew Friedman
May 3, 2014·The Australian and New Zealand Journal of Psychiatry·Martin J DorahyWarwick Middleton
May 27, 2017·Cognitive Neuropsychiatry·John Morton
Feb 1, 2020·European Journal of Psychotraumatology·R J C HuntjensA Arntz

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