Project Outputs

Here we list project-related papers, conference contributions, and our public activity. As we still work intensely on data collection and analysis, the list will hopefully extend soon, so stay tuned.

 

Peer-reviewed journal articles

Heubner, L.*, Cipora, K.*, Soltanlou, M., Schlenker, M.-L., Lipowska, K., Goebel, S. M., Domahs, F., Haman, M., & Nuerk, H.-C. (submitted). A mental odd-even continuum account: Some numbers may be “more odd” than others, and some numbers may be “more even” than others. Frontiers in Psychology. [* equal contribution]

 

In this paper, we demonstrate that mentally the parity of multi-digit numbers is not binary. Factors such as divisibility by 4, being part of a multiplication table, or being a square significantly influenced parity judgments of auditorily presented two-digit numbers. In this study we tested Polish-, German- and English speaking adults. Between language differences indicate that unit-decade inversion in German (e.g., 21 in German is named one-and-twenty) influences parity decision times. Furthermore, our results strongly suggest that generalizability of numerical processing models (especially those of parity processing) between languages should not be taken as granted.

 

Conference contributions

Smaczny, S., Soltanlou, M., Goebel, S.M., Nuerk, H.-C., Cipora, K. (2017). The parity congruency effect depends on the target: Evidence for automatic place-value processing. Workshop: Linguistic and Cognitive influences on numerical cognition. Tuebingen: Germany. Poster.

 

In this study, in which we tested groups of English- and German-speaking adults, we show that not only magnitude but also parity is automatically processed in multi-digit numbers. Despite predictions on language modulation of this effect related to unit-decade inversion in German (e.g., 21 in German is named one-and-twenty) and lack of such inversion in English, in this study we did not find any language effects.

 

 

Schlenker, M.-L., Heubner, L., Soltanlou, M., Cipora, K., Goebel, S.M., Domahs, F., Lipowska, K., Haman, M., Nuerk, H.-C. (2017). Which factors affect response speed in a two-digit number parity judgment task: a cross-lingual study. Part I: Arabic notation. Workshop: Linguistic and Cognitive influences on numerical cognition. Tuebingen: Germany. Poster.

 

Schlenker, M.-L., Heubner, L., Soltanlou, M., Cipora, K., Goebel, S.M., Domahs, F., Lipowska, K., Haman, M., Nuerk, H.-C. (2017). Which factors affect response speed in a two-digit number parity judgment task: a cross-lingual study. Part II: Number words. Workshop: Linguistic and Cognitive influences on numerical cognition. Tuebingen: Germany. Poster.

 

Heubner, L., Schlenker, M.-L., Soltanlou, M., Cipora, K., Goebel, S.M., Domahs, F., Lipowska, K., Haman, M., Nuerk, H.-C. (2017). Which factors affect response speed in a two-digit number parity judgment task: a cross-lingual study. Part III: Auditory presentation. Workshop: Linguistic and Cognitive influences on numerical cognition. Tuebingen: Germany. Poster.

 

In this collection of three posters, we present which numerical and non-numerical factors influence times needed for parity judgments of two-digit numbers. We used different notations (Arabic numbers, number words, and auditory numbers), and tested English-, German-, and Polish-speaking healthy adults. Interestingly, strongest language effects were observed in case of numbers presented auditorily. Several numerical properties such as divisibility by 4 were influencing the reaction times. Interestingly, the least pronounced influences were observed in case of Arabic notation. Parity congruency was also a rubust factor influencing parity decisions.

 

 

Public activity

Here we will list our efforts made to bring our findings to general public. We are currently working on several such initiatives. To improve accessibility of this work, we put special effort to provide some materials in German, Polish and in English. Therefore, stay tuned.

 

 

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