Is numerical comparison digital? Analogical and symbolic effects in two-digit number comparison. Dehaene, S., Dupoux, E., & Mehler, J. Journal of experimental psychology. Human perception and performance, 16:626–641, August, 1990. doi abstract bibtex Do Ss compare multidigit numbers digit by digit (symbolic model) or do they compute the whole magnitude of the numbers before comparing them (holistic model)? In 4 experiments of timed 2-digit number comparisons with a fixed standard, the findings of Hinrichs, Yurko, and Hu (1981) were extended with French Ss. Reaction times (RTs) decreased with target-standard distance, with discontinuities at the boundaries of the standard's decade appearing only with standards 55 and 66 but not with 65. The data are compatible with the holistic model. A symbolic interference model that posits the simultaneous comparison of decades and units can also account for the results. To separate the 2 models, the decades and units digits of target numbers were presented asynchronously in Experiment 4. Contrary to the prediction of the interference model, presenting the units before the decades did not change the influence of units on RTs. Pros and cons of the holistic model are discussed.
@Article{Dehaene1990a,
author = {Dehaene, S. and Dupoux, E. and Mehler, J.},
journal = {Journal of experimental psychology. Human perception and performance},
title = {Is numerical comparison digital? Analogical and symbolic effects in two-digit number comparison.},
year = {1990},
month = aug,
pages = {626--641},
volume = {16},
abstract = {Do Ss compare multidigit numbers digit by digit (symbolic model) or do they compute the whole magnitude of the numbers before comparing them (holistic model)? In 4 experiments of timed 2-digit number comparisons with a fixed standard, the findings of Hinrichs, Yurko, and Hu (1981) were extended with French Ss. Reaction times (RTs) decreased with target-standard distance, with discontinuities at the boundaries of the standard's decade appearing only with standards 55 and 66 but not with 65. The data are compatible with the holistic model. A symbolic interference model that posits the simultaneous comparison of decades and units can also account for the results. To separate the 2 models, the decades and units digits of target numbers were presented asynchronously in Experiment 4. Contrary to the prediction of the interference model, presenting the units before the decades did not change the influence of units on RTs. Pros and cons of the holistic model are discussed.},
citation-subset = {IM},
completed = {1990-10-12},
country = {United States},
doi = {10.1037//0096-1523.16.3.626},
groups = {Distance effects},
issue = {3},
keywords = {Adult; Attention; Discrimination Learning; Female; Functional Laterality; Humans; Male; Middle Aged; Pilot Projects; Problem Solving; Psychomotor Performance; Reaction Time},
nlm-id = {7502589},
owner = {NLM},
pmid = {2144576},
pubmodel = {Print},
pubstate = {ppublish},
revised = {2019-09-12},
}
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In 4 experiments of timed 2-digit number comparisons with a fixed standard, the findings of Hinrichs, Yurko, and Hu (1981) were extended with French Ss. Reaction times (RTs) decreased with target-standard distance, with discontinuities at the boundaries of the standard's decade appearing only with standards 55 and 66 but not with 65. The data are compatible with the holistic model. A symbolic interference model that posits the simultaneous comparison of decades and units can also account for the results. To separate the 2 models, the decades and units digits of target numbers were presented asynchronously in Experiment 4. Contrary to the prediction of the interference model, presenting the units before the decades did not change the influence of units on RTs. 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Analogical and symbolic effects in two-digit number comparison.},\n year = {1990},\n month = aug,\n pages = {626--641},\n volume = {16},\n abstract = {Do Ss compare multidigit numbers digit by digit (symbolic model) or do they compute the whole magnitude of the numbers before comparing them (holistic model)? In 4 experiments of timed 2-digit number comparisons with a fixed standard, the findings of Hinrichs, Yurko, and Hu (1981) were extended with French Ss. Reaction times (RTs) decreased with target-standard distance, with discontinuities at the boundaries of the standard's decade appearing only with standards 55 and 66 but not with 65. The data are compatible with the holistic model. A symbolic interference model that posits the simultaneous comparison of decades and units can also account for the results. To separate the 2 models, the decades and units digits of target numbers were presented asynchronously in Experiment 4. 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Analogical and symbolic effects in two-digit number comparison.","year":1990}