Recognition Memory, Self-Other Source Memory, and Theory-of-Mind in Children with Autism Spectrum Disorder
This study investigated semantic and episodic memory in autism spectrum disorder (ASD), using a task which assessed recognition and self-other source memory. Children with ASD showed undiminished recognition memory but significantly diminished source memory, relative to age- and verbal ability-matched comparison children. Both children with and without ASD showed an “enactment effect”, demonstrating significantly better recognition and source memory for self-performed actions than other-person-performed actions. Within the comparison group, theory-of-mind (ToM) task performance was significantly correlated with source memory, specifically for other-person-performed actions (after statistically controlling for verbal ability). Within the ASD group, ToM task performance was not significantly correlated with source memory (after controlling for verbal ability). Possible explanations for these relations between source memory and ToM are considered.
KeywordsAutism spectrum disorder Episodic memory Recognition memory Semantic memory Source memory Theory-of-mind
We would like to thank the following schools for their participation in this research: Bensham Manor, Brent Knoll, Hillingdon Manor, Kilmorie, Linden Bridge, Southmead, Pendragon, St. Winifred’s, The Park, and West Wimbledon. We are extremely grateful to Dr David Williams for his helpful suggestions during the preparation and revision of this manuscript. Finally, we wish to thank Dr Chris Jarrold and the other anonymous reviewers of this article for their insightful comments.
- Baron-Cohen, S., Leslie, A. M., & Frith, U. (1986). Mechanical, behavioural and intentional understanding of picture stories in autistic children. The British Journal of Developmental Psychology, 4, 113–125.Google Scholar
- Boucher, J., & Bowler, D. (2008). Memory in autism: Theory and evidence. Cambridge: Cambridge University Press.Google Scholar
- Brownell, R. (2000). Expressive one-word picture vocabulary test. Novato, CA: Academic Therapy Publications.Google Scholar
- Dunn, L. M., Dunn, L. M., Whetton, C., & Burley, L. (1997). British Picture Vocabulary Scale (2nd Ed.). Windsor: NFER-Nelson.Google Scholar
- Engelkamp, J. (1998). Memory for actions. Hove: Psychology Press.Google Scholar
- Lind, S. E., & Bowler, D. M. (2008). Episodic memory and autonoetic consciousness in autism spectrum disorders: The roles of self-awareness, representational abilities, and temporal cognition. In J. Boucher & D. Bowler (Eds.), Memory in autism: Theory and evidence (pp. 166–187). Cambridge: Cambridge University Press.Google Scholar
- Lind, S. E., & Bowler, D. M. (in press). Language and theory of mind in autism spectrum disorder: The relationship between complement syntax and false belief task performance. Journal of Autism and Developmental Disorders. doi: 10.1007/s10803-009-0702-y.
- Perner, J. (2000). Memory and theory of mind. In E. Tulving & F. I. M. Craik (Eds.), The Oxford handbook of memory (pp. 297–312). Oxford: Oxford University Press.Google Scholar
- Perner, J., Leekam, S., & Wimmer, H. (1987). Three-year-olds’ difficulty with false belief: The case for a conceptual deficit. The British Journal of Developmental Psychology, 5, 125–137.Google Scholar
- Roberts, K. P., & Blades, M. (1998). The effect of interacting in repeated events on children’s eyewitness memory and source monitoring. Applied Cognitive Psychology, 12, 489–503. doi: 10.1002/(SICI)1099-0720(199810)12:5<489::AID-ACP535>3.0.CO;2-#.CrossRefGoogle Scholar
- Russell, J. (1996). Agency: Its role in mental development. Hove: Erlbaum.Google Scholar
- Tager-Flusberg, H., & Joseph, R. M. (2005). How language facilitates the acquisition of false beliefs in children with autism. In J. W. Astington & J. A. Baird (Eds.), Why language matters for theory of mind. Oxford: Oxford University Press.Google Scholar
- Toichi, M. (2008). Episodic memory, semantic memory and self-awareness in high-functioning autism. In J. Boucher & D. Bowler (Eds.), Memory in autism: Theory and evidence (pp. 143–165). Cambridge: Cambridge University Press.Google Scholar
- Williams, D. M., & Happé, F. (in press). What did I say? versus What did I think?: Attributing false beliefs to self amongst children with and without autism. Journal of Autism and Developmental Disorders. doi: 10.1007/s10803-009-0695-6.
- World Heath Organization. (1993). International classification of mental and behavioural disorders: Clinical descriptions and diagnostic guidelines (Vol. 10). Geneva: World Heath Organization.Google Scholar