TY  - JOUR
A1  - Miklashevsky, Alex
A1  - Lindemann, Oliver
A1  - Fischer, Martin H.
T1  - The force of numbers
BT  - Investigating manual signatures of embodied number processing
JF  - Frontiers in human neuroscience / Frontiers Research Foundation
N2  - The study has two objectives: (1) to introduce grip force recording as a new technique for studying embodied numerical processing; and (2) to demonstrate how three competing accounts of numerical magnitude representation can be tested by using this new technique: the Mental Number Line (MNL), A Theory of Magnitude (ATOM) and Embodied Cognition (finger counting-based) account. While 26 healthy adults processed visually presented single digits in a go/no-go n-back paradigm, their passive holding forces for two small sensors were recorded in both hands. Spontaneous and unconscious grip force changes related to number magnitude occurred in the left hand already 100-140 ms after stimulus presentation and continued systematically. Our results support a two-step model of number processing where an initial stage is related to the automatic activation of all stimulus properties whereas a later stage consists of deeper conscious processing of the stimulus. This interpretation generalizes previous work with linguistic stimuli and elaborates the timeline of embodied cognition. We hope that the use of grip force recording will advance the field of numerical cognition research.
KW  - ATOM
KW  - embodied cognition
KW  - finger counting
KW  - grip force
KW  - mental number
KW  - line
KW  - number processing
KW  - numerical cognition
Y1  - 2021
U6  - https://doi.org/10.3389/fnhum.2020.590508
SN  - 1662-5161
VL  - 14
PB  - Frontiers Media
CY  - Lausanne
ER  - 
TY  - GEN
A1  - Wiemers, Michael
A1  - Bekkering, Harold
A1  - Lindemann, Oliver
T1  - Two attributes of number meaning
BT  - numerical associations with visual space and size exist in parallel
T2  - Postprints der Universität Potsdam Humanwissenschaftliche Reihe
N2  - Many studies demonstrated interactions between number processing and either spatial codes (effects of spatial-numerical associations) or visual size-related codes (size-congruity effect). However, the interrelatedness of these two number couplings is still unclear. The present study examines the simultaneous occurrence of space- and size-numerical congruency effects and their interactions both within and across trials, in a magnitude judgment task physically small or large digits were presented left or right from screen center. The reaction times analysis revealed that space- and size-congruency effects coexisted in parallel and combined additively. Moreover, a selective sequential modulation of the two congruency effects was found. The size-congruency effect was reduced after size incongruent trials. The space-congruency effect, however, was only affected by the previous space congruency. The observed independence of spatial-numerical and within magnitude associations is interpreted as evidence that the two couplings reflect Different attributes of numerical meaning possibly related to orginality and cardinality.
T3  - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - 587 
KW  - gratton effect
KW  - shared magnitude representation
KW  - size-congruity effect
KW  - spatial-numerical associations
KW  - number processing
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-433566
SN  - 1866-8364
IS  - 587
SP  - 253
EP  - 261
ER  - 
TY  - JOUR
A1  - Wiemers, Michael
A1  - Bekkering, Harold
A1  - Lindemann, Oliver
T1  - Two attributes of number meaning
BT  - numerical associations with visual space and size exist in parallel
JF  - Experimental Psychology
N2  - Many studies demonstrated interactions between number processing and either spatial codes (effects of spatial-numerical associations) or visual size-related codes (size-congruity effect). However, the interrelatedness of these two number couplings is still unclear. The present study examines the simultaneous occurrence of space- and size-numerical congruency effects and their interactions both within and across trials, in a magnitude judgment task physically small or large digits were presented left or right from screen center. The reaction times analysis revealed that space- and size-congruency effects coexisted in parallel and combined additively. Moreover, a selective sequential modulation of the two congruency effects was found. The size-congruency effect was reduced after size incongruent trials. The space-congruency effect, however, was only affected by the previous space congruency. The observed independence of spatial-numerical and within magnitude associations is interpreted as evidence that the two couplings reflect Different attributes of numerical meaning possibly related to orginality and cardinality.
KW  - Gratton effect
KW  - shared magnitude representation
KW  - size-congruity effect
KW  - spatial-numerical associations
KW  - number processing
Y1  - 2017
U6  - https://doi.org/10.1027/1618-3169/a000366
SN  - 1618-3169
SN  - 2190-5142
VL  - 64
IS  - 4
SP  - 253
EP  - 261
PB  - Hogrefe
CY  - Göttingen
ER  -