Author:
Rugani Rosa,Loconsole Maria,Simion Francesca,Regolin Lucia
Abstract
AbstractDay-old domestic chicks approach the larger of two groups of identical objects, but in a 3 vs 4 comparison, their performance is random. Here we investigated whether adding individually distinctive features to each object would facilitate such discrimination. Chicks reared with 7 objects were presented with the operation 1 + 1 + 1 vs 1 + 1 + 1 + 1. When objects were all identical, chicks performed randomly, as expected (Experiment 1). In the remaining experiments, objects differed from one another due to additional features. Chicks succeeded when those features were differently oriented segments (Experiment 2) but failed when the features were arranged to depict individually different face-like displays (Experiment 3). Discrimination was restored if the face-like stimuli were presented upside-down, disrupting global processing (Experiment 4). Our results support the claim that numerical discrimination in 3 vs 4 comparison benefits from the presence of distinctive features that enhance object individuation due to individual processing. Interestingly, when the distinctive features are arranged into upright face-like displays, the process is susceptible to global over local interference due to configural processing. This study was aimed at assessing whether individual object processing affects numerical discrimination. We hypothesise that in humans similar strategies aimed at improving performance at the non-symbolic level may have positive effects on symbolic mathematical abilities.
Funder
European’s Union Horizon 2020 Research and Innovation programme under the Marie Sklodowska-Curie
PRIN 2017 ERC-SH4–A grant
Publisher
Springer Science and Business Media LLC
Reference78 articles.
1. Spelke, E. S. Principles of object perception. Cogn. Sci. 14, 29–56 (1990).
2. Spelke, E. S., Kestenbaum, R., Simons, D. J. & Wein, D. Spatiotemporal continuity, smoothness of motion and object identity in infancy. Br. J. Dev. Psychol. 13, 113–142 (1995).
3. Scott, L. S. Face perception and perceptual expertise in adult and developmental populations. Oxford Handb Face Percept. https://doi.org/10.1093/oxfordhb/9780199559053.013.0011 (2011).
4. Taubert, J., Wardle, S. G., Flessert, M., Leopold, D. A. & Ungerleider, L. G. Face pareidolia in the rhesus monkey. Curr. Biol. 27, 2505-2509.e2 (2017).
5. Dart, R. A. The waterworn Australopithecine Pebble of many faces from Makapansgat. S. Afr. J. Sci. 70, 167 (1974).
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