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Antonella Pomè

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Antonella Pomè

PhD Student in Neuroscience, Università degli Studi di Firenze

Contacts

  • Email: antonella.pom (AT) gmail.com
  • Mobile phone: +39 333 952 02 32

Research laboratories

  • CNR Institute of Neuroscience, Pisa
  • Department of Translational Research
    on New Technologies in Medicine and Surgery,
    University of Pisa

Education

  • 2013 - 2016: MS Psychology (curriculum Neuropsychology and Cognitive Assessment), 110/110 cum laude, Scuola di Psicologia, Università degli Studi di Firenze, Italy
  • 2011 - 2013: BS General and Experimental Psychology, Facoltà di Psicologia, Università degli Studi di Napoli, Italy


Current research and interests

  • Numerosity perception
  • Pupillary Response
  • Autism
  • Research technologies and methods
  • Serial Dependencies

 

Publications

2017

Anobile, G., Cicchini, G. M., Pomè, A. & Burr, D. (2017). Connecting Visual Objects Reduces Perceived Numerosity and Density for Sparse but not Dense Patterns, Journal of Numerical Cognition, 4 (3), PDF

How is numerosity encoded by the visual system? – directly, or derived indirectly from texture density? We recently suggested that the numerosity of sparse patterns is encoded directly by dedicated mechanisms (which have been described as the “Approximate Number System” ANS). However, at high dot densities, where items become “crowded” and difficult to segregate, “texture-density” mechanisms come into play. Here we tested the importance of item segmentation on numerosity and density perception at various stimulus densities, by measuring the effect of connecting visual objects with thin lines. The results confirmed many previous studies showing that connecting items robustly reduces the apparent numerosity of patterns of moderate density. We further showed that the apparent density of moderate-density patterns is also reduced by connecting the dots. Crucially, we found that both these effects are strongly reduced at higher numerosities. Indeed for density judgments, the effect reverses, so connecting dots in dense patterns increases the apparent density (as expected from the physical characteristics). The results provide clear support for the three-regime framework of number perception, and suggest that for moderately sparse stimuli, numerosity – but not texture-density – is perceived directly.


Conferences

  • The origins of numerical abilities. The Royal Society, London, 20th -21th February 2017
  • The origins of numerical abilities: the future. The Royal Society, London, 22th -23th February 2017
  • Pomè, A., Anobile, G., Cicchini, G.M., Burr, D.C. Perceived density follows item segmentation not physical density, (Poster) European Conference on Visual Perception ECVP, Berlin 27- 31 August 2017

Theses
  • Pomè, A., "Connected dot-pairs effects on numerosity and density judgements". Università degli Studi di Firenze, Italy (2016). Supervisor: D.C. Burr.





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