Transfer of newly acquired stimulus valence between identities in dissociative identity disorder (DID) |
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Authors: | Huntjens Rafaële J C Peters Madelon L Postma Albert Woertman Liesbeth Effting Marieke van der Hart Onno |
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Institution: | Department of Clinical Psychology, Faculty of Social Sciences, Utrecht University, P.O. Box 80.140, Utrecht 3508 TC, The Netherlands. r.huntjens@fss.uu.nl |
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Abstract: | Patients with Dissociative Identity Disorder (DID) frequently report episodes of interidentity amnesia, that is amnesia for events experienced by other identities. The goal of the present experiment was to test the implicit transfer of trauma-related information between identities in DID. We hypothesized that whereas declarative information may transfer from one identity to another, the emotional connotation of the memory may be dissociated, especially in the case of negative, trauma-related emotional valence. An evaluative conditioning procedure was combined with an affective priming procedure, both performed by different identities. In the evaluative conditioning procedure, previously neutral stimuli come to refer to a negative or positive connotation. The affective priming procedure was used to test the transfer of this acquired valence to an identity reporting interidentity amnesia. Results indicated activation of stimulus valence in the affective priming task, that is transfer of emotional material between identities. |
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Keywords: | Evaluative conditioning Affective priming Dissociative Identity Disorder |
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