Results suggest that the Corsi backward task is not the spatial analogue of the Digit backward task and that it involves specific spatial processes. In fact, results revealed a significant impairment in the backward version of the Corsi test in the VSLD group, but not in the forward version, and in the Digit Span tasks. However, for the Corsi task, this difference was present only for VSLD children. The comparison between the forward and backward span versions showed that both visuospatial learning disabled children (VSLD) and controls presented with the Digit Span had a lower performance with the backward version. In Study 1, participants were administered a verbal span test (Digit Span test) and a visuospatial span test (Corsi Blocks task) both in the forward and backward versions, while in Study 2 only the Corsi test was administered. This research tested the hypotheses that the backward spatial span does not involve the controlled use of the same type of sequential spatial processing involved in the forward version, that its impairment is modality specific, and that children with specific visuospatial learning disabilities (VSLD) have lower performance in backward than in forward Corsi Blocks test, compared to a control group. For example, it has been argued that (in its comparison with the forward version) it has the same implications as the backward digit span and/or it requires the use of amodal central executive components of working memory. Journal of Clinical Psychology, 28, 361.The clinical use of backward spatial short-term memory tasks, and in particular of the Corsi backward task, it has increased and it has generated a series of theoretical hypotheses. Digit span in right and left hemiplegics. Weinberg, J., Diller, L., Gerstman, L., & Schulman, L. The Wechsler adult intelligence scale-III. Baltimore: Williams and Wilkins Corporation. The measurement and appraisal of adult intelligence (3rd ed.). The measurement and appraisal of adult intelligence (1st ed.). The measurement of intelligence: An explanation of and a complete guide for the use of the Stanford revision and extension of the Binet-Simon intelligence scale. Relation of forward and backward digit repetition to neurological impairment in children with learning disabilities. Measurements of short-term memory: A historical review. Idk why anyone would ever take the test and not chunk. With chunking, I can do 10 backwards and 11 on a good day. Archives of Clinical Neuropsychology, 12, 29–40. So if you chunk a 10-11 span digit, then if you compare that with the norm set and the test was normed on people who chunked and did not chunk, or just didn’t chunk, then maybe that percentile is not the most accurate representation. Forward and backward memory span should not be combined for clinical analysis. Separate digits tests: A brief history, a literature review, and a reexamination of the factor structure of the test of memory and learning (TOMAL). The magical number seven, plus or minus two: Some limits on our capacity for processing information. The Clinical Neuropsychologist – Vascular Dementia Special Edition, 18, 83–100. From Binswanger’s disease to Leukoaraiosis: What we have learned about subcortical vascular dementia. Paper presented at the 44th annual meeting of the International Neuropsychological Society, Boston. Dissociating constructs underlying working memory in mild cognitive impairment: A competitive queuing analysis. Libon, D.J., Gifford, K., Holman, T., and Jefferson A.J. Alterations in working memory as a function of leukoaraiosis in dementia. Capacity to maintain mental set in dementia. The impact of region-specific leukoaraiosis on working memory deficits in dementia. San Antonio: The Psychological Corporation. The WAIS-R as a neuropsychological instrument. Kaplan, E., Fein, D., Morris, R., & Delis, D. Washington, DC: The American Psychological Association. Bryant (Eds.), Clinical neuropsychology and brain function: Research, measurement, and practice: Master lectures. A process approach to neuropsychological assessment. Memory for serial order across domains: An overview of the literature and directions for future research. Mechanism in thought and morals: An address delivered before the phi Beta Kappa Society of Harvard University, June 29, 1870, with notes and afterthoughts. Memory: A contribution to experimental psychology (H. Cognitive and Behavioral Neurology, 17, 74–83.Įbbinghaus, H. Clock drawing errors in dementia: Neuropsychological and neuroanatomic considerations. Bower (Ed.), The psychology of learning and motivation: Advances in research and theory (Vol. Application des méthodes nouvelles au diagnostic du niveau intellectuel chez des enfants normaux et anormaux d’hospice et d’école primaire.
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