Browsing by Author "Bulut, Merve"

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Citation - WoS: 7
Citation - Scopus: 7
No SNARC Effect Among Left- to-Right Readers: Evidence From a Turkish Sample
(UNIV ECONOMICS & HUMAN SCIENCES WARSAW, 2023) Merve Bulut; Ilgim Hepdarcan; Ezgi Palaz; Hakan Cetinkaya; Seda Dural; Bulut, Merve; Dural, Seda; Hepdarcan, Ilgim; Palaz, Ezgi; Cetinkaya, Hakan
The spatial-numerical association of response codes (SNARC) refers to the faster left-hand respons- es to smaller numbers and faster right-hand responses to larger numbers. Although easily repli- cable in Western cultures the prevalence of the SNARC effect in other cultures has long been an issue. In the current study we aimed to replicate the SNARC effect in a parity judgement task with Turkish participants (N=66) whose reading habits are entirely left-to-right. The results revealed no SNARC effect. To the best of our knowledge this is the first finding indicating the absence of regu- lar SNARC effect among left-to-right readers in a classical parity judgement task. Based on these findings we suggest that investigations of cultural influences on spatial-numerical associations should take a broader perspective rather than only focusing on reading habits.
Citation - WoS: 10
Citation - Scopus: 8
One direction? Cultural aspects of the mental number line beyond reading direction
(Springer Science and Business Media Deutschland GmbH, 2025) Merve Topcu Bulut; Lilly Roth; Narjes Hosein Zadeh Bahreini; Krzysztof Cipora; Ulf Dietrich Reips; Hans Christoph Nuerk; Bulut, Merve; Nuerk, Hans-Christoph; Roth, Lilly; Bahreini, Narjes; Cipora, Krzysztof; Reips, Ulf Dietrich
Spatial-Numerical Associations (SNAs) refer to the demonstrations of spatial processing of numbers. The Mental Number Line (MNL) is a representation model describing numbers as aligning left-to-right (LR) and was suggested to account for directional biases in participants’ responses during numerical tasks. One common behavioral demonstration of this is the Spatial-Numerical Associations of Response Codes (SNARC) effect which describes faster left-/right-hand responses to smaller/larger numbers respectively. The MNL and consequently directional SNAs show variabilities across different cultures. Reading direction is considered to be the main factor in explaining these differences. In line with this individuals with right-to-left (RL) reading habits show a weaker or even reverse SNARC effect. In the present study we investigated whether SNAs are influenced not only by reading direction but also by cultural directional preferences such as drawing lines arranging objects imagining objects (i.e. rightward or leftward facing) or representing events in time (i.e. mentally representing the past/future on the left/right respectively). To test this hypothesis we measured the cultural directional preferences and the SNARC effect across three cultures in an online setup, German Turkish and Iranian. LR preferences in the Cultural Directional Preferences Questionnaire were most prominent in German participants intermediate in Turkish participants and least prominent in Iranian participants. In line with this the LR SNARC effect was strongest in German intermediate in Turkish and weakest (but not RL) in Iranian culture. These findings suggest that cultural directional preferences are involved in the emergence of adult SNAs in addition to the reading direction. © 2024 Elsevier B.V. All rights reserved.
Citation - WoS: 2
Citation - Scopus: 2
SNARC effect in a transfer paradigm: long-lasting effects of stimulus-response compatibility practices
(SPRINGER HEIDELBERG, 2025) Merve Bulut; Hakan Cetinkaya; Seda Dural; Bulut, Merve; Dural, Seda; Çetinkaya, Hakan
The Spatial-Numerical Association of Response Codes (SNARC) effect refers to the phenomenon of faster left-hand responses to smaller numbers and faster right-hand responses to larger ones. The current study examined the possible long-lasting effects of magnitude-relevant stimulus-response compatibility (SRC) practices on the SNARC effect in a transfer paradigm. Participants performed a magnitude classification task including either SNARC-compatible or SNARC-incompatible trials as practice. They performed a parity judgment task in the subsequent transfer session administered five minutes one day or a week after the practice session. Results revealed significant SNARC effects after compatible practices and significant reverse SNARC effects after incompatible practices in all time-interval conditions. However a control group without practice showed no reliable SNARC effect. These findings suggest that the SNARC effect can be influenced by magnitude-relevant associations formed a week previously highlighting the long-lasting effects of magnitude-relevant SRC practices on the SNARC effect.