Procedural memory in dissociative identity disorder: When can interidentity amnesia be truly established?

Huntjens, R. J. C., Postma, A., Woertman, L., van der Hart, O. & Peters, M. L., Jun-2005, In : Consciousness and Cognition. 14, 2, p. 377-389 13 p.

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  • Procedural memory in dissociative identity disorder

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In a serial reaction time task, procedural memory was examined in Dissociative Identity Disorder (DID). Thirty-one DID patients were tested for inter-identity transfer of procedural learning and their memory performance was compared with 25 normal controls and 25 controls instructed to simulate DID. Results of patients seemed to indicate a pattern of inter-identity amnesia. Simulators, however, were able to mimic a pattern of inter-identity amnesia, rendering the results of patients impossible to interpret as either a pattern of amnesia or a pattern of simulation. It is argued that studies not including DID-simulators or simulation-free memory tasks, should not be taken as evidence for (or against) amnesia in DID.
Original languageEnglish
Pages (from-to)377-389
Number of pages13
JournalConsciousness and Cognition
Issue number2
Publication statusPublished - Jun-2005
Externally publishedYes



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