Browsing by Author "Palaz, Ezgi"

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How does practice under different representational contexts change SNAs over time?
(JOHN WILEY & SONS LTD, 2024) Seda Dural; Ezgi Palaz; Hakan Cetinkaya; Dural, Seda; Palaz, Ezgi; Cetinkaya, Hakan
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: 4
Citation - Scopus: 4
Practice-induced SNARC: evidence from a null-SNARC sample
(SPRINGER HEIDELBERG, 2024) Ezgi Palaz; Hakan Cetinkaya; Zeynep Tuncali; Bengi Kamar; Seda Dural; Dural, Seda; Tuncali, Zeynep; Palaz, Ezgi; Çetinkaya, Hakan; Kamar, Bengi
The mental representation of numbers inherently involves a spatial organization often positioning smaller numbers to the left and larger numbers to the right. The SNARC effect characterized by faster responses to small numbers using the left hand and vice versa for large numbers is typically attributed to this left-to-right oriented mental number line (MNL). However the direction of the SNARC effect seems to rely on reading direction with most research exploring these mechanisms conducted within left-to-right reading cultures where the SNARC effect is prevalent. This study takes advantage of a sample from a left-to-right reading culture that does not exhibit the SNARC effect allowing us to isolate and elucidate the stand-alone effects of recent experiences on SNARC. Therefore the current study aims to investigate how MNL-compatible and MNL-incompatible practices induce an effect within a sample lacking the SNARC effect. To accomplish this we reinvited the individuals from the sample which had previously shown no SNARC and retested those who agreed to take part in the current study after an MNL-compatible or MNL-incompatible practice manipulation. The findings revealed an absence of the SNARC effect with MNL-compatible practices. Conversely MNL-incompatible practices yielded a reverse SNARC effect. These results prompt a discussion on SNARC mechanisms within the framework of practice effects.
Practice-induced SNARC: MNL compatibility in a No-SNARC sample
(JOHN WILEY & SONS LTD, 2024) Hakan Cetinkaya; Ezgi Palaz; Zeynep Tuncali; Bengi Kamar; Seda Dural; Dural, Seda; Tuncali, Zeynep; Cetinkaya, Hakan; Palaz, Ezgi; Kamar, Bengi
Representational Context Modulates the Direction and Transiency of Practice Effects on SNARC
(SAGE Publications Ltd, 2026) Palaz, Ezgi; Cetinkaya, Hakan; Dural, Seda
The Spatial-Numerical Association of Response Codes (SNARC) effect typically results in faster left-hand responses for small numbers and right-hand responses for large numbers, aligning with the concept of the mental number line (MNL). It is a robust but a flexible phenomenon that can reverse direction depending on the spatial-numerical mappings employed. This study investigates the potential modulatory effects of two contrasting representational contexts (ruler vs. clockface) on the emergence and persistence of the SNARC effect under two opposing spatial-numerical practices (MNL-compatible vs. MNL-incompatible). In Experiment 1, a magnitude classification task was employed as a practice session including either MNL-compatible or MNL-incompatible stimulus-response mappings, and the transfer and transiency of practice effects were examined by engaging participants in three test parity judgment tasks administered 5 min, 1 day, and 1 week after the practice session. In Experiment 2, different representational contexts were introduced during practice sessions. Experiment 2a utilized an image of a ruler as the context consistent with the MNL, while Experiment 2b employed a clockface image as an inconsistent context. Participants underwent testing three times to assess changes in performance over time. Results revealed that MNL-compatible practice effects did not transfer while MNL-incompatible practice effects resulted in a reverse SNARC effect persisting for up to 1 day. However, introducing the ruler context eliminated this transfer, while the clockface context reduced the persistence of the practice effect.