TY  - GEN
A1  - Lohse, Karoline
A1  - Sixtus, Elena
A1  - Lonnemann, Jan
T1  - Thinking about time and number
BT  - an application of the dual-systems approach to numerical cognition
T2  - Behavioral and brain sciences : an international journal of current research and theory with open peer commentary
N2  - Based on the notion that time, space, and number are part of a generalized magnitude system, we assume that the dual-systems approach to temporal cognition also applies to numerical cognition. Referring to theoretical models of the development of numerical concepts, we propose that children's early skills in processing numbers can be described analogously to temporal updating and temporal reasoning.
Y1  - 2019
U6  - https://doi.org/10.1017/S0140525X19000475
SN  - 0140-525X
SN  - 1469-1825
VL  - 42
PB  - Cambridge Univ. Press
CY  - New York
ER  - 
TY  - JOUR
A1  - Sixtus, Elena
A1  - Lonnemann, Jan
A1  - Fischer, Martin H.
A1  - Werner, Karsten
T1  - Mental Number Representations in 2D Space
JF  - Frontiers in Psychology
N2  - There is evidence both for mental number representations along a horizontal mental number line with larger numbers to the right of smaller numbers (for Western cultures) and a physically grounded, vertical representation where “more is up.” Few studies have compared effects in the horizontal and vertical dimension and none so far have combined both dimensions within a single paradigm where numerical magnitude was task-irrelevant and none of the dimensions was primed by a response dimension. We now investigated number representations over both dimensions, building on findings that mental representations of numbers and space co-activate each other. In a Go/No-go experiment, participants were auditorily primed with a relatively small or large number and then visually presented with quasi-randomly distributed distractor symbols and one Arabic target number (in Go trials only). Participants pressed a central button whenever they detected the target number and elsewise refrained from responding. Responses were not more efficient when small numbers were presented to the left and large numbers to the right. However, results indicated that large numbers were associated with upper space more strongly than small numbers. This suggests that in two-dimensional space when no response dimension is given, numbers are conceptually associated with vertical, but not horizontal space.
KW  - spatial-numerical associations
KW  - SNARC
KW  - vertical space
KW  - horizontal space
KW  - Go/No-go task
Y1  - 2019
U6  - https://doi.org/10.3389/fpsyg.2019.00172
SN  - 1664-1078
VL  - 10
PB  - Frontiers Research Foundation
CY  - Lausanne
ER  - 
TY  - GEN
A1  - Sixtus, Elena
A1  - Lonnemann, Jan
A1  - Fischer, Martin H.
A1  - Werner, Karsten
T1  - Mental Number Representations in 2D Space
T2  - Postprints der Universität Potsdam Humanwissenschaftliche Reihe
N2  - There is evidence both for mental number representations along a horizontal mental number line with larger numbers to the right of smaller numbers (for Western cultures) and a physically grounded, vertical representation where “more is up.” Few studies have compared effects in the horizontal and vertical dimension and none so far have combined both dimensions within a single paradigm where numerical magnitude was task-irrelevant and none of the dimensions was primed by a response dimension. We now investigated number representations over both dimensions, building on findings that mental representations of numbers and space co-activate each other. In a Go/No-go experiment, participants were auditorily primed with a relatively small or large number and then visually presented with quasi-randomly distributed distractor symbols and one Arabic target number (in Go trials only). Participants pressed a central button whenever they detected the target number and elsewise refrained from responding. Responses were not more efficient when small numbers were presented to the left and large numbers to the right. However, results indicated that large numbers were associated with upper space more strongly than small numbers. This suggests that in two-dimensional space when no response dimension is given, numbers are conceptually associated with vertical, but not horizontal space.
T3  - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - 538 
KW  - spatial-numerical associations
KW  - SNARC
KW  - vertical space
KW  - horizontal space
KW  - Go/No-go task
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-424960
SN  - 1866-8364
IS  - 538
ER  -