TY - JOUR
T1 - Holistic representation of negative numbers is formed when needed for the task
AU - Ganor-Stern, Dana
AU - Pinhas, Michal
AU - Kallai, Arava
AU - Tzelgov, Joseph
N1 - Funding Information:
Correspondence should be addressed to Dana Ganor-Stern, Achva Academic College, M. P. Shikmim, 79800, Israel. E-mail: [email protected] This research was supported by the Israel Science Foundation (Grant 662/06 to D.G.S. and Grant 1664/08 for the Center for the Study of the Neurocognitive Basis of Numerical Cognition). We wish to thank Shirley DeGarcea and Lital Oliker for their help in running the experiments.
PY - 2010
Y1 - 2010
N2 - Past research suggested that negative numbers are represented in terms of their components-the polarity marker and the number (e.g., Fischer & Rottmann, 2005; Ganor-Stern & Tzelgov, 2008). The present study shows that a holistic representation is formed when needed for the task requirement. Specifically, performing the numerical comparison task on positive and negative numbers presented sequentially required participants to hold both the polarity and the number magnitude in memory. Such a condition resulted in a holistic representation of negative numbers, as indicated by the distance and semantic congruity effects. This holistic representation was added to the initial components representation, thus producing a hybrid holistic-components representation.
AB - Past research suggested that negative numbers are represented in terms of their components-the polarity marker and the number (e.g., Fischer & Rottmann, 2005; Ganor-Stern & Tzelgov, 2008). The present study shows that a holistic representation is formed when needed for the task requirement. Specifically, performing the numerical comparison task on positive and negative numbers presented sequentially required participants to hold both the polarity and the number magnitude in memory. Such a condition resulted in a holistic representation of negative numbers, as indicated by the distance and semantic congruity effects. This holistic representation was added to the initial components representation, thus producing a hybrid holistic-components representation.
KW - Holistic representation
KW - Negative numbers
KW - Numerical cognition
KW - Numerical processing
UR - http://www.scopus.com/inward/record.url?scp=77957869022&partnerID=8YFLogxK
U2 - 10.1080/17470211003721667
DO - 10.1080/17470211003721667
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C2 - 20437298
AN - SCOPUS:77957869022
SN - 1747-0218
VL - 63
SP - 1969
EP - 1981
JO - Quarterly Journal of Experimental Psychology
JF - Quarterly Journal of Experimental Psychology
IS - 10
ER -