@article{WasnerMoellerFischeretal.2014, author = {Wasner, Mirjam and Moeller, Korbinian and Fischer, Martin H. and Nuerk, Hans-Christoph}, title = {Aspects of situated cognition in embodied numerosity: the case of finger counting}, series = {Cognitive processing : international quarterly of cognitive science}, volume = {15}, journal = {Cognitive processing : international quarterly of cognitive science}, number = {3}, publisher = {Springer}, address = {Heidelberg}, issn = {1612-4782}, doi = {10.1007/s10339-014-0599-z}, pages = {317 -- 328}, year = {2014}, abstract = {Numerical cognitions such as spatial-numerical associations have been observed to be influenced by grounded, embodied and situated factors. For the case of finger counting, grounded and embodied influences have been reported. However, situated influences, e.g., that reported counting habits change with perception and action within a given situation, have not been systematically examined. To pursue the issue of situatedness of reported finger-counting habits, 458 participants were tested in three separate groups: (1) spontaneous condition: counting with both hands available, (2) perceptual condition: counting with horizontal (left-to-right) perceptual arrangement of fingers (3) perceptual and proprioceptive condition: counting with horizontal (left-to-right) perceptual arrangement of fingers and with busy dominant hand. Report of typical counting habits differed strongly between the three conditions. 28 \% reported to start counting with the left hand in the spontaneous counting condition (1), 54 \% in the perceptual condition (2) and 62 \% in the perceptual and proprioceptive condition (3). Additionally, all participants in the spontaneous counting group showed a symmetry-based counting pattern (with the thumb as number 6), while in the two other groups, a considerable number of participants exhibited a spatially continuous counting pattern (with the pinkie as number 6). Taken together, the study shows that reported finger-counting habits depend on the perceptual and proprioceptive situation and thus are strongly influenced by situated cognition. We suggest that this account reconciles apparently contradictory previous findings of different counting preferences regarding the starting hand in different examination situations.}, language = {en} } @article{NinausMoellerKaufmannetal.2017, author = {Ninaus, Manuel and Moeller, Korbinian and Kaufmann, Liane and Fischer, Martin H. and Nuerk, Hans-Christoph and Wood, Guilherme}, title = {Cognitive Mechanisms Underlying Directional and Non-directional Spatial-Numerical Associations across the Lifespan}, series = {Frontiers in psychology}, volume = {8}, journal = {Frontiers in psychology}, publisher = {Frontiers Research Foundation}, address = {Lausanne}, issn = {1664-1078}, doi = {10.3389/fpsyg.2017.01421}, pages = {13}, year = {2017}, abstract = {There is accumulating evidence suggesting an association of numbers with physical space. However, the origin of such spatial-numerical associations (SNAs) is still debated. In the present study we investigated the development of two SNAs in a cross-sectional study involving children, young and middle-aged adults as well as the elderly: (1) the SNARC (spatial-numerical association of response codes) effect, reflecting a directional SNA; and (2) the numerical bisection bias in a line bisection task with numerical flankers. Results revealed a consistent SNARC effect in all age groups that continuously increased with age. In contrast, a numerical bisection bias was only observed for children and elderly participants, implying an U-shaped distribution of this bias across age groups. Additionally, individual SNARC effects and numerical bisection biases did not correlate significantly. We argue that the SNARC effect seems to be influenced by longer-lasting experiences of cultural constraints such as reading and writing direction and may thus reflect embodied representations. Contrarily, the numerical bisection bias may originate from insufficient inhibition of the semantic influence of irrelevant numerical flankers, which should be more pronounced in children and elderly people due to development and decline of cognitive control, respectively. As there is an ongoing debate on the origins of SNAs in general and the SNARC effect in particular, the present results are discussed in light of these differing accounts in an integrative approach. However, taken together, the present pattern of results suggests that different cognitive mechanisms underlie the SNARC effect and the numerical bisection bias.}, language = {en} } @unpublished{KaufmannMazzoccoDowkeretal.2013, author = {Kaufmann, Liane and Mazzocco, Michele M. and Dowker, Ann and von Aster, Michael G. and Goebel, Silke M. and Grabner, Roland H. and Henik, Avishai and Jordan, Nancy C. and Karmiloff-Smith, Annette D. and Kucian, Karin and Rubinsten, Orly and Szucs, Denes and Shalev, Ruth and Nuerk, Hans-Christoph}, title = {Dyscalculia from a developmental and differential perspective}, series = {Frontiers in psychology}, volume = {4}, journal = {Frontiers in psychology}, number = {2}, publisher = {Frontiers Research Foundation}, address = {Lausanne}, issn = {1664-1078}, doi = {10.3389/fpsyg.2013.00516}, pages = {5}, year = {2013}, language = {en} } @article{WasnerMoellerFischeretal.2015, author = {Wasner, Mirjam and M{\"o}ller, Korbinian and Fischer, Martin H. and Nuerk, Hans-Christoph}, title = {Related but not the same: Ordinality, cardinality and 1-to-1 correspondence in finger-based numerical representations}, series = {Journal of cognitive psychology}, volume = {27}, journal = {Journal of cognitive psychology}, number = {4}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {2044-5911}, doi = {10.1080/20445911.2014.964719}, pages = {426 -- 441}, year = {2015}, abstract = {Finger-based numerical representations have gained increasing research interest. However, their description and assessment often refer to different numerical principles of ordinality, cardinality and 1-to-1 correspondence. Our aim was to investigate similarities and differences between these principles in finger-based numerical representations. Sixty-eight healthy adults performed ordinal finger counting, cardinal finger montring (showing the number of gestures) and finger-to-number mapping with twisted arms and fingers. We found that counting gestures and montring postures were identical for Number 10 but differed to varying degrees for other numbers. Interestingly, there was no systematic relation between finger-to-number mapping and ordinal finger counting habits. These data question the assumption of a unitary embodied finger-based numerical representation, but suggest that different finger-based representations co-exist and can be recruited flexibly depending on the numerical aspects to be conveyed.}, language = {en} }