Abstract
We investigated how becoming literate in Roman script affects the way we process letter-like objects and even faces, using a paired same-different task with nonwords, false fonts (letter-like symbols), and faces with monoliterate English and Thai readers. Roman script has mirror letter pairs whereas Thai script does not. Importantly, the Thais were literate in Thai but illiterate in Roman script. Participants were required to respond with a “same” response to both identical and mirror pairs of images. We predicted that the Thais would be more influenced by mirror invariance and so better able to recognise mirror-image pairs as being the same object than English readers. We found support for this prediction as the English readers showed a greater mirror cost for response times than the Thais. Thus, becoming literate in Roman script reduces the ability to judge two mirror images as the “same” in comparison to Thai script readers. These findings provide evidence that Thai readers who are illiterate in Roman script are more susceptible to mirror generalisation effects than Roman script readers.
Similar content being viewed by others
References
Badian, N. A. (2005). Does a visual orthographic deficit contribute to reading disability? Annals of Dyslexia, 55, 28–52. https://doi.org/10.1007/s11881-005-0003-x
Danziger, E., & Pederson, E. (1998). Through the looking glass: Literacy, writing systems and mirror-image discrimination. Written Language & Literacy, 1, 153–169. https://doi.org/10.1075/wll.1.2.02dan
Dehaene, S. (2005). Evolution of human cortical circuits for reading and arithmetic: The neuronal recycling hypothesis. In S. Dehaene, J-R. Duhamel, M. D. Hauser, & G. Rizzolatti (Eds.), From monkey brain to human brain. A Fyssen Foundation Symposium (pp. 133–157). MIT Press.
Dehaene, S., & Cohen, L. (2007). Cultural recycling of cortical maps. Neuron, 56(2), 384–398. https://doi.org/10.1016/j.neuron.2007.10.004
Dehaene, S., Cohen, L., Morais, J., & Kolinsky, R. (2015). Illiterate to literate: Behavioural and cerebral changes induced by reading acquisition. Nat Rev Neurosci, 16(4), 234–244. https://doi.org/10.1038/nrn3924
Dehaene, S., Cohen, L., Sigman, M., & Vinckier, F. (2005). The neural code for written words: A proposal. Trends in Cognitive Sciences, 9, 335–341. https://doi.org/10.1016/j.tics.2005.05.004
Dehaene, S., Pegado, F., Braga, L. W., Ventura, P., Nunes Filho, G., Jobert, A., & Cohen, L. (2010). How learning to read changes the cortical networks for vision and language. Science, 330, 1359–1364. https://doi.org/10.1126/science.1194140
Dehaene-Lambertz, G., Monzalvo, K., & Dehaene, S. (2018). The emergence of the visual word form: Longitudinal evolution of category-specific ventral visual areas during reading acquisition. PLoS Biology, 16(3), e2004103. https://doi.org/10.1371/journal.pbio.2004103
Duñabeitia, J. A., Molinaro, N., & Carreiras, M. (2011). Through the looking-glass: Mirror reading. NeuroImage, 54, 3004–3009. https://doi.org/10.1016/j.neuroimage.2010.10.079
Fernandes, T., Arunkumar, M., & Huettig, F. (2021). The role of the written script in shaping mirror-image discrimination: Evidence from illiterate, Tamil literate, and Tamil-Latin-alphabet bi-literate adults. Cognition, 206, 104493. https://doi.org/10.1016/j.cognition.2020.104493
Fernandes, T., & Leite, I. (2017). Mirrors are hard to break: A critical review and behavioral evidence on mirror-image processing in developmental dyslexia. Journal of Experimental Child Psychology, 159, 66–82. https://doi.org/10.1016/j.jecp.2017.02.003
Hervais-Adelman, A., Kumar, U., Mishra, R. K., Tripathi, V. N., Guleria, A., Singh, J. P., & Huettig, F. (2019). Learning to read recycles visual cortical networks without destruction. Science Advances, 5(9), eaax0262. https://doi.org/10.1126/sciadv.aax0262
Pae, H. K., Bae, S., & Yi, K. (2020). Horizontal orthography versus vertical orthography: The effects of writing direction and syllabic format on visual word recognition in Korean Hangul. Quarterly Journal of Experimental Psychology, 74(3), 443–458. https://doi.org/10.1177/1747021820971503
Pederson, E. (2003). Mirror-image discrimination among nonliterate, monoliterate, and biliterate Tamil subjects. Written Language & Literacy, 6, 71–91. https://doi.org/10.1075/wll.6.1.04ped
Pegado, F., Nakamura, K., Braga, L. W., Ventura, P., Nunes Filho, G., Pallier, C., & Dehaene, S. (2014). Literacy breaks mirror invariance for visual stimuli: A behavioral study with adult illiterates. Journal of Experimental Psychology-General, 143(2), 887–894. https://doi.org/10.1037/a0033198
Perea, M., Moret-Tatay, C., & Panadero, V. (2011). Suppression of mirror generalization for reversible letters: Evidence from masked priming. Journal of Memory and Language, 65, 237–246. https://doi.org/10.1016/j.jml.2011.04.005
Van Paridon, J., Ostarek, M., Arunkumar, M., & Huettig, F. (2021). Does neuronal recycling result in destructive competition? The influence of learning to read on the recognition of faces. Psychological Science, 32, 459–465. https://doi.org/10.1177/0956797620971652
Winskel, H., & Perea, M. (2018). Do the characteristics of the script influence responses to mirror letters? In N. Mani, R. K. Mishra, & F. Huettig (Eds.) The interactive mind: Language, vision and attention (pp. 61–66). Macmillan.
Winskel, H., & Kim, T.-H. (2021). The mirror generalization process in reading: Evidence from Korean Hangul. Journal of Psycholinguistic Research, 50(2), 447–458. https://doi.org/10.1007/s10936-020-09736-1
Funding
No funding was received for conducting this study.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors have no conflicts of interest to declare that are relevant to the content of this article.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Winskel, H., Perea, M. Mirror-image discrimination in monoliterate English and Thai readers: reading with and without mirror letters. J Cult Cogn Sci 6, 169–177 (2022). https://doi.org/10.1007/s41809-021-00090-9
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s41809-021-00090-9