Short-term memory in autism spectrum disorder |
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Authors: | Poirier Marie Martin Jonathan S Gaigg Sebastian B Bowler Dermot M |
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Institution: | Psychology Department, City University, Northampton Square, London EC1V 0HB, United Kingdom. m.poirier@city.ac.uk |
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Abstract: | Three experiments examined verbal short-term memory in comparison and autism spectrum disorder (ASD) participants. Experiment 1 involved forward and backward digit recall. Experiment 2 used a standard immediate serial recall task where, contrary to the digit-span task, items (words) were not repeated from list to list. Hence, this task called more heavily on item memory. Experiment 3 tested short-term order memory with an order recognition test: Each word list was repeated with or without the position of 2 adjacent items swapped. The ASD group showed poorer performance in all 3 experiments. Experiments 1 and 2 showed that group differences were due to memory for the order of the items, not to memory for the items themselves. Confirming these findings, the results of Experiment 3 showed that the ASD group had more difficulty detecting a change in the temporal sequence of the items. |
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