Arithmetic Memory Is Modality Specific.

In regards to numerical cognition and working memory, it is an open question as to whether numbers are stored into and retrieved from a central abstract representation or from separate notation-specific representations. This study seeks to help answer this by utilizing the numeral modality effect (N...

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Main Authors: Timothy Myers, Dénes Szücs
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4696806?pdf=render
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author Timothy Myers
Dénes Szücs
author_facet Timothy Myers
Dénes Szücs
author_sort Timothy Myers
collection DOAJ
description In regards to numerical cognition and working memory, it is an open question as to whether numbers are stored into and retrieved from a central abstract representation or from separate notation-specific representations. This study seeks to help answer this by utilizing the numeral modality effect (NME) in three experiments to explore how numbers are processed by the human brain. The participants were presented with numbers (1-9) as either Arabic digits or written number words (Arabic digits and dot matrices in Experiment 2) at the first (S1) and second (S2) stimuli. The participant's task was to add the first two stimuli together and verify whether the answer (S3), presented simultaneously with S2, was correct. We hypothesized that if reaction time (RT) at S2/S3 depends on the modality of S1 then numbers are retrieved from modality specific memory stores. Indeed, RT depended on the modality of S1 whenever S2 was an Arabic digit which argues against the concept of numbers being stored and retrieved from a central, abstract representation.
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spelling doaj.art-30c86a622b214ccab4fa7a4cefebf9722022-12-21T23:51:18ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-011012e014561410.1371/journal.pone.0145614Arithmetic Memory Is Modality Specific.Timothy MyersDénes SzücsIn regards to numerical cognition and working memory, it is an open question as to whether numbers are stored into and retrieved from a central abstract representation or from separate notation-specific representations. This study seeks to help answer this by utilizing the numeral modality effect (NME) in three experiments to explore how numbers are processed by the human brain. The participants were presented with numbers (1-9) as either Arabic digits or written number words (Arabic digits and dot matrices in Experiment 2) at the first (S1) and second (S2) stimuli. The participant's task was to add the first two stimuli together and verify whether the answer (S3), presented simultaneously with S2, was correct. We hypothesized that if reaction time (RT) at S2/S3 depends on the modality of S1 then numbers are retrieved from modality specific memory stores. Indeed, RT depended on the modality of S1 whenever S2 was an Arabic digit which argues against the concept of numbers being stored and retrieved from a central, abstract representation.http://europepmc.org/articles/PMC4696806?pdf=render
spellingShingle Timothy Myers
Dénes Szücs
Arithmetic Memory Is Modality Specific.
PLoS ONE
title Arithmetic Memory Is Modality Specific.
title_full Arithmetic Memory Is Modality Specific.
title_fullStr Arithmetic Memory Is Modality Specific.
title_full_unstemmed Arithmetic Memory Is Modality Specific.
title_short Arithmetic Memory Is Modality Specific.
title_sort arithmetic memory is modality specific
url http://europepmc.org/articles/PMC4696806?pdf=render
work_keys_str_mv AT timothymyers arithmeticmemoryismodalityspecific
AT denesszucs arithmeticmemoryismodalityspecific