Abstract
The competitive queuing approach offers an explanation of serial order encoding in terms of ordering of activation values. This study assesses the ability of a competitive queuing model of spelling to reproduce a novel pattern of acquired dysgraphia which is characterised by reduced activation of lexical-orthographic representations. The model is able to account for some aspects of performance reasonably well. For instance, better spelling of letters at the beginning of the word results from their higher activation values. However, the model is shown to be inadequate in other respects. It is suggested that multiple occurrences of items in a sequence should not be represented by a single node which receives strong inhibition.
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References
Shallice T. From Neuropsychology to Mental Structure. Cambridge: Cambridge University Press, 1988.
Ellis AW, Young AW. Human Cognitive Neuropsychology. London: Lawrence Earlbaum Associates, 1988.
Ebbinghaus H. Memory: A contribution to experimental psychology. New York: Columbia University, Teachers College, 1913.
Lashley KS. The problem of serial order in behaviour. In: Jeffress LA (ed) Cerebral Mechanisms in Behaviour. Wiley: New York, 1951.
Houghton G. The problem of serial order: A neural network model of sequence learning and recall. In: Dale R, Mellish C, Zock M (eds) Current Research in Natural Language Generation. Academic Press: London, 1990.
Burgess N, Hitch GJ. Toward a network model of the articulatory loop. Journal of Memory and Language 1992; 31: 429–460.
Glasspool DW. Competitive queuing and the articulatory loop: An extended network model. In: Levy J, et al. (eds) Connectionist Models of Memory and Language, UCL Press: London, 1995.
Houghton G, Hartley T, Glasspool DW. The representation of words and nonwords in short-term memory: Serial order and syllable structure. In: Gathercole SE (ed) Models of Short-term Memory. Psychology Press: Hove, 1996.
Rumelhart DE, Norman DA. Simulating a skilled typist: A study of skilled cognitive-motor performance. Cognitive Science 1982; 6: 1–36.
Houghton G, Tipper SP. Inhibitory mechanisms of neural and cognitive control: Applications to selective attention and sequential action. Brain and Cognition 1996; 30: 20–43.
Shallice T, Glasspool DW, Houghton G. Can neuropsychological evidence inform connectionist modelling? Analyses of spelling. Language and Cognitive Processes 1995; 10: 195–225.
Houghton G, Glasspool DW, Shallice T. Spelling and serial recall: Insights from a competitive queuing model. In: Brown GDA, Ellis NC (ed) Handbook of Spelling: Theory, Process and Intervention. John Wiley & Sons: London, 1994.
Estes WK. An associative basis for coding and organisation in memory. In: Melton AW, Martin E (eds) Coding Processes in Human Memory. VH Winston and Sons: Washington DC, 1972.
Grossberg S. Behavioural contrast in short term memory: Serial binary memory models or parallel continuous memory models? Journal of Mathematical Psychology 1978; 17: 199–219.
Margolin DI. The neuropsychology of writing and spelling: Semantic, phonological, motor and perceptual processes. Quarterly Journal of Experimental Psychology 1984; 36A: 459–489.
Olson A, Caramazza A. Representation and connectionist models: The NETspell experience. In: Brown GDA, Ellis NC (eds) Handbook of Spelling: Theory, Process and Intervention. John Wiley & Sons: London, 1994.
Glasspool DW, Houghton G, Shallice T. Interactions between knowledge sources in a dual-route model of spelling. In: Smith LS, Hancock PJB (eds) Neural Computation and Psychology. London: Springer-Verlag, 1995.
Shaffer LH. Control processes in typing. Quarterly Journal of Experimental Psychology 1975; 27: 419–432.
Caramazza A, Miceli G. The structure of graphemic representations. Cognition, 1990; 37: 243–297.
Miceli G, et al. Selective deficit in processing double letters. Cortex, 1995; 31: 161–171.
Tainturier MJ, Caramazza A. The status of double letters in graphemic representations. Journal of Memory and Language 1996; 35: 53–75.
Romani C, Calabrese A. On the representation of geminate consonants: Evidence from the phonological errors of an aphasic patient. Journal of Neurolinguistics 1996; 9: 219–235.
Caramazza A, et al. The role of the graphemic buffer in spelling: Evidence from a case of acquired dysgraphia. Cognition 1987; 26: 59–85.
Cubelli R. A selective deficit for writing vowels in acquired dysgraphia. Nature 1991; 353: 258–260.
De Partz MP. Deficit of the graphemic buffer: Effects of a written lexical segmentation strategy. Neuropsychological Rehabilitation 1995; 5: 129–147.
Jonsdottir MK, Shallice T, Wise R. Phonological mediation and the graphemic buffer disorder in spelling: Cross-language differences? Cognition 1996; 59: 169–197.
Hanley JR.Peripheral disorders of spelling: The role of the graphemic buffer. In Brown GDA, Ellis NC (eds) Handbook of Spelling: Theory, Process and Intervention. John Wiley & Sons: London, 1994.
Ward J, Romani C. Serial position effects and lexical activation in spelling: Evidence from a single case study. Neurocase 1998; 4: 189–206.
Wing AM, Baddeley AD. Spelling errors in handwriting: A corpus and a distributional analysis. In: Frith U (ed) Cognitive Processes in spelling. Academic Press: London, 1980.
Ward J, Romani C. Consonant-vowel encoding and ortho-syllables in acquired dysgraphic spelling. Submitted.
McClelland JL, Rumelhart DE. An interactive activation model of context effects in letter perception: Part 1, an account of basic findings. Psychological Review 1981; 88: 375–407.
Seidenberg M, McClelland JL. A distributed, developmental model of word recognition and naming. Psychological Review 1989; 96: 523–568.
Glasspool DW, Shallice T, Cipolotti L. Neuropsychologically plausible sequence generation in a multi-layer model of spelling. This Volume.
Caramazza A, Hillis AE. Levels of representation, co-ordinate frames, and unilateral neglect. Cognitive Neuropsychology 1990; 7: 391–445.
Page MPA, Norris DG. A localist implementation of the primacy model of immediate serial recall. Fourth Neural Computation and Psychology Workshop. UCL: London, 1997.
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Ward, J., Olson, A., Romani, C. (1999). Competitive Queuing and Spelling: Modelling Acquired Dysgraphia. In: Heinke, D., Humphreys, G.W., Olson, A. (eds) Connectionist Models in Cognitive Neuroscience. Perspectives in Neural Computing. Springer, London. https://doi.org/10.1007/978-1-4471-0813-9_3
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DOI: https://doi.org/10.1007/978-1-4471-0813-9_3
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