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  4. Alessandro Soranzo

Dr Alessandro Soranzo MSc, PhD, PgCert (LTHE), SFHEA

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Summary

Here at Sheffield Hallam University I am a Postgraduate Research Tutor conducting research in visual perception. I am responsible for teaching on various undergraduate and postgraduate degree programs; student personal tutor and student dissertation/project supervisor.

About

I have obtained undergraduate degree and MSc in Experimental psychology at the Department of Psychology - University of Triest (ITA). In 2005, I was a Post Doc research fellow in the Department of Vision Sciences - Glasgow Caledonian University (UK). 2006-2012 I worked at Teesside University on Visual Perception. I joined Sheffield Hallam University in September 2012.

My major research interest is related to the area of visual perception, in particular to lightness perception, which studies the achromatic dimension of colour perception. The long-term aim of my work is to integrate the outcomes of relevant experiments, together with the outcomes of the experiments of other researchers, in a coherent theory of lightness perception. I am also interested in naïve physics and psychophysics methods to sensory thresholds estimations and software programming.

I am a Fellow of the Higher Education Academy (HEA), a APS Member (Member of the Association for Psychological Science) and a Member of the British Colour Group.


Visual Perception, Psychophysics, Statistics and Research Methods.

Teaching

Department of Psychology, Sociology and Politics

Social Sciences and Arts

Research

Art and Design Research Centre (ADRC)
Centre for Behavioural Science and Applied Psychology (CeBSAP)
My research interests are in the field of Visual Cognition, in particular:
Colour perception
Perception of Art
Visual attention
Human/robot interaction

La Bella Principessa and the uncatchable smile

The dancing diamonds illusion

Publications

Wilson, C., Soranzo, A., & Marco, B. (2017). Attentional interference is modulated by salience not sentience. Acta Psychologica, 178, 56-65. http://doi.org/10.1016/j.actpsy.2017.05.010

Bertamini, M., & Soranzo, A. (2018). Reasoning about visibility in mirrors: A comparison between a human observer and a camera. Perception, 47 (8), 821-832. http://doi.org/10.1177/0301006618781088

Soranzo, A. (2016). Simultaneous color contrast. In Luo, M.R. (Ed.) Encyclopedia of color science and technology. (pp. 1149-1142). New York: Springer Verlag: http://doi.org/10.1007/978-1-4419-8071-7_268

Pickard, M., & Soranzo, A. (2017). Dancing diamonds. In Martinez-Conde, S., & Macknik, S. (Eds.) Champions of illusion. Farrar, Straus and Giroux, LLC

Soranzo, A., Petrelli, D., Ciolfi, L., & Reidy, J. (2018). On the perceptual aesthetics of interactive objects. Quarterly Journal of Experimental Psychology, 71 (12), 2586-2602. http://doi.org/10.1177/1747021817749228

Soranzo, A. (2016). Simultaneous contrast, simultaneous brightness contrast, simultaneous color. In Ronnier, L. (Ed.) Encyclopedia of color science and technology. New York: Springer-Verlag New York: http://doi.org/10.1007/978-3-642-27851-8_268-1

Prpic, V., Soranzo, A., Santoro, I., Fantoni, C., Galmonte, A., Agostini, T., & Murgia, M. (2018). SNARC-like compatibility effects for physical and phenomenal magnitudes: A study on visual illusions. Psychological Research.

Gilchrist, A., & Soranzo, A. (2019). What is the relationship between lightness and perceived illumination. Journal of Experimental Psychology: Human Perception and Performance, 45 (11), 1470-1483. http://doi.org/10.1037/xhp0000675

Soranzo, A. (2019). Simultaneous color contrast. In Shamey, R. (Ed.) Encyclopedia of Color Science and Technology. Berlin: Springer: http://doi.org/10.1007/978-3-642-27851-8

Soranzo, A., Acaster, S., Taroyan, N., & Reidy, J. (2020). Depth plane separation affects both Lightness Contrast and Assimilation. Frontiers in Psychology, 11, 2114. http://doi.org/10.3389/fpsyg.2020.02114

Soranzo, A., & Bruno, N. (2020). Nonverbal communication in selfies posted on Instagram: another look at the effect of gender on vertical camera angle. PLoS One, 15 (9). http://doi.org/10.1371/journal.pone.0238588

Journal articles

Acaster, S., Taroyan, N., Soranzo, A., & Reidy, J. (2021). Behavioural and Electrophysiological Correlates of Lightness Contrast and Assimilation. Experimental Brain Research. http://doi.org/10.1007/s00221-021-06197-3

Sinnico, M., Bertamini, M., & Soranzo, A. (2021). Perceiving intersensory and emotional qualities of everyday objects: a study on smoothness or sharpness features with line drawings by designers. Art and Perception. http://doi.org/10.1163/22134913-bja10026

Gao, J., & Soranzo, A. (2020). Applying Q-methodology to investigate people’ preferences for multivariate stimuli. Frontiers in Psychology, section Quantitative Psychology and Measurement, 11, 556509. http://doi.org/10.3389/fpsyg.2020.556509

Gao, J., & Soranzo, A. (2020). Individual differences in aesthetic preferences for multi-sensorial stimulation. Vision, 4(1) (6). http://doi.org/10.3390/vision4010006

Soranzo, A., & Aquili, L. (2019). Fear expression is suppressed by tyrosine administration. Scientific Reports, 9 (1), 16073. http://doi.org/10.1038/s41598-019-52610-x

Pesimena, G., Wilson, C., Bertamini, M., & Soranzo, A. (2019). The role of perspective taking on attention: a review of the special issue on the Reflexive Attentional Shift Phenomenon. Vision, 3 (4). http://doi.org/10.3390/vision3040052

Di Nuovo, A., Varrasi, S., Lucas, A., Conti, D., Mcnamara, J., & Soranzo, A. (2019). Assessment of Cognitive skills via Human-robot Interaction and Cloud Computing. Journal of Bionic Engineering, 16 (3), 526-539. http://doi.org/10.1007/s42235-019-0043-2

Soranzo, A., & Gilchrist, A. (2019). Layer and framework theories of lightness. Attention, Perception, and Psychophysics. http://doi.org/10.3758/s13414-019-01736-1

Soranzo, A., Danyeko, O., & Zavagno, D. (2017). Mona Lisa's smiles in Leonardo's drawings. Art and Perception, 5 (5), 410. https://vsac2017.org/

Soranzo, A., & Grassi, M. (2017). Corrigendum: Psychoacoustics: A comprehensive matlab toolbox for auditory testing. [Front. Psychol.(2014)(712), 5] DOI: 10.3389/fpsyg.2014.00712. Frontiers in Psychology, 8 (JUL), 1185. http://doi.org/10.3389/fpsyg.2017.01185

Altamirano, C., Soranzo, A., & Gilchrist, A. (2016). Perceived illumination anchored by the highest luminance. Vision Sciences Society Annual Meeting Abstract, 16 (12), 818. http://doi.org/10.1167/16.12.818

Galmonte, A., Soranzo, A., Rudd, M.E., & Agostini, T. (2015). The phantom illusion. Vision Research, 117, 49-58. http://doi.org/10.1016/j.visres.2015.10.007

Wilson, C., & Soranzo, A. (2015). The use of virtual reality in psychology: a case study in visual perception. Computational and Mathematical Methods in Medicine. http://www.hindawi.com/journals/cmmm/

Soranzo, A., Lugrin, J.-.L., & Wilson, C.J. (2013). The effects of belongingness on the Simultaneous Lightness Contrast: A virtual reality study. Vision Research, 86, 97-106. http://doi.org/10.1016/j.visres.2013.04.012

Ivory, S., Soranzo, A., & Gilchrist, A. (2013). Koffka's invariance theorem, highest luminance anchoring, and the area rule apply to both lightness and perceived illumination. Journal of Vision, 13 (9), 1152. http://doi.org/10.1167/13.9.1152

Soranzo, A., Iory, S., & Gilchrist, A. (2012). Experiments in perceived illumination. Perception, 41, 45. http://doi.org/10.1068/v120698

Soranzo, A., Galmonte, A., & Agostini, T. (2010). Von Bezold assimilation effect reverses in stereoscopicconditions. Perception, 39 (5), 592-605. http://doi.org/10.1068/p6462

Soranzo, A. (2010). The luminance misattribution in lightness perception. Psihologija, 43 (1), 33-46. http://doi.org/10.2298/PSI1001033S

Soranzo, A., Galmonde, A., & Agostini, T. (2009). Lightness constancy: ratio invariance and luminance profile. Attention, Perception, & Psychophysics, 71 (3), 463-470. http://doi.org/10.3758/APP.71.3.463

Soranzo, A., Galmonte, A., & Agostini, T. (2009). The perceptual contrast of impossible shadow edges. Perception, 38 (2), 164-172. http://doi.org/10.1068/p5932

Grassi, M., & Soranzo, A. (2009). MLP: a MATLAB toolbox for rapid and reliable auditory threshold estimation. Behavior Research Methods, 41 (1), 20-28. http://doi.org/10.3758/BRM.41.1.20

Soranzo, A., & Agostini, T. (2006). Does perceptual belongingness affect lightness constancy? Perception, 35 (2), 185-192. http://www.perceptionweb.com/

Soranzo, A. (2006). Does perceptual belongingness affect lightness constancy? Perception, 35 (2), 185-192. http://www.perceptionweb.com/

Soranzo, A., & Agostini, T. (2006). Photometric, geometric and perceptual factors in illumination-independent lightness constancy. Attention, Perception & Psychophisics, 68 (1), 102-113.

Soranzo, A., & Fantoni, C. (2005). Semi-transparent layers enhance the simultaneous lightness contrast - abstract only. Journal of vision, 5 (8), 564. http://doi.org/10.1167/5.8.564

Soranzo, A., & Agostini, T. (2004). Impossible shadows and lightness constancy. Perception, 33, 1359-1368. http://www.perceptionweb.com/P.html

Soranzo, A., & Agostini, T. (2003). Perceptual grouping in illumination-dependent lightness constancy. Journal of Vision, 3 (9). http://doi.org/10.1167/3.9.418

Soranzo, A., & Gao, J. (n.d.). Individual differences in aesthetic preferences for Interactive Objects: a Q-methodology study. .

DI NUOVO, A., Varrasi, S., Lucas, A., CONTI, D., McNamara, J., & SORANZO, A. (n.d.). Assessment of Cognitive skills via Human-robot Interaction and Cloud Computing. Journal of Bionic Engineering.

Conference papers

Ghosh, A., Penders, J., & Soranzo, A. (2020). Haptic directional information for spatial exploration. In The 28th IEEE International Conference on Robot & Human Interactive Communication, New Delhi, India, 14 October 2019 - 18 October 2019. IEEE: http://doi.org/10.1109/RO-MAN46459.2019.8956428

Pesimena, G., Bertamini, M., & Soranzo, A. (2019). The Role of Social Mechanisms in Modulating Attentional Interference [abstract only]. PERCEPTION, 48 (2 Supp), 142-143. http://doi.org/10.1177/0301006619863862

Soranzo, A., Pesimena, G., & Bertamini, M. (2019). Developmental and Social Mechanisms in Reasoning About Mirrors: A Comparison Between Adults, Typically Developed Children and Children With Autism Spectrum Disorder. PERCEPTION, 48 (2 Supp), 46-47. https://journals.sagepub.com/toc/peca/48/2_suppl

Sangiorgi, G., Pesimena, G., Commodari, E., Bertamini, M., & Soranzo, A. (2019). The Influence of Perspective of an Inanimate Object on the Boundary Extension Phenomena [abstract only]. PERCEPTION, 48 (2 Supp), 141. https://journals.sagepub.com/doi/full/10.1177/0301006619863862

Pollicino, C., Gao, J., Conti, D., Commodari, E., & Soranzo, A. (2019). Q-Methodology and Aesthetic Preferences for IOs: The Role of Alexithymia. PERCEPTION, 48 (2 Supp), 145. https://journals.sagepub.com/toc/peca/48/2_suppl

Platania, G.A., Castellano, S., Agostini, T., Baldassi, G., & Soranzo, A. (2019). When Articulation Does Not Enhance Lightness Contrast. PERCEPTION, 48, 130.

Taroyan, N., Acaster, S., Soranzo, A., & Reidy, J. (2019). Behavioural and event-related potential responses to lightness contrast and assimilation. Abstract only. Perception, 48 (S1), 90. http://doi.org/10.1177/0301006618824879

Di nuovo, A., Varrasi, S., Alexandr, L., Conti, D., Soranzo, A., Bamforth, J., & Mcnamara, J. (2019). Usability Evaluation of a Robotic System for Cognitive Testing. In ACM/IEEE International Conference on Human-Robot Interaction, Daegu (Korea), 11 March 2019 - 14 March 2019. IEEE: http://doi.org/10.1109/HRI.2019.8673187

Soranzo, A., & Gilchrist, A. (2019). Changes in relative area produce equal and opposite effects on lightness and perceived illumination (Abstract only). Perception, 48 (S1), 175. https://journals.sagepub.com/page/pec/collections/ecvp-abstracts/index

Varrasi, S., Lucas, A., Soranzo, A., Mcnamara, J., & Di Nuovo, A. (2018). IBM Cloud Services enhance automatic cognitive assessment via human-robot interaction. In Wenger, P., Chevallereau, C., Pisla, D., Bleuler, H., & Rodic, A. (Eds.) New trends in medical and service robotics : advances in theory and practice, (pp. 165-176). Netherlands: Springer: http://doi.org/10.1007/978-3-030-00329-6_20

Varrasi, S., Lucas, A., Soranzo, A., McNamara, J., & Di Nuovo, A. (2018). IBM Cloud Services Enhance Automatic Cognitive Assessment via Human-Robot Interaction. New Trends in Medical and Service Robots: Advances in Theory and Practice, 65, 169-176. http://doi.org/10.1007/978-3-030-00329-6_20

Prpic, V., Murgia, M., Soranzo, A., & Agostini, T. (2018). A SNARC-like effect for the perceived size of both physical and illusory figures. In 41st European Conference on Visual Perception, Trieste, Italy, 26 August 2018 - 30 August 2018.

Acaster, S., Soranzo, A., Taroyan, N., & Reidy, J. (2018). ERP responses to stimuli which elicit lightness contrast and assimilation. In 41st European Conference on Visual Perception, Trieste, Italy, 26 August 2018 - 30 August 2018. https://www.ecvp2018.org/

Penders, J., Wang, J., Bhowmik, D., Di Nuovo, A., Soranzo, A., Rolph, J., ... Cameron, D. (2018). Robots claiming space: gauging public reaction usingcomputer vision techniques. In Giuliani, M., Assaf, T., & Giannaccini, M.E. (Eds.) Towards autonomous robotic systems: 19th annual conference, TAROS 2018 proceedings, (pp. 468-470). Springer: http://doi.org/10.1007/978-3-319-96728-8

Soranzo, A., Danyeko, O., & Zavagno, D. (2017). Mona Lisa’s smiles in Leonardo’s drawings. Art and perception, 5, 410. https://brill.com/view/journals/artp/artp-overview.xml

Soranzo, A. (2017). The importance of behaviour as an aesthetic feature (abstract only). 40th European Conference on Visual Perception (ECVP) 2017 Berlin. https://journals.sagepub.com/page/pec/collections/ecvp-abstracts/index/ecvp-2017

Soranzo, A., Wilson, C., & Bertamini, M. (2016). The role of perceptual factors in the reflexive attentional shift phenomenon. In 39th European Conference on Visual Perception (ECVP) 2016 Barcelona, Barcelona, 28 August 2016 - 1 September 2016. http://journals.sagepub.com/toc/peca/45/2_suppl

Petrelli, D., Soranzo, A., Ciolfi, L., & Reidy, J. (2016). Exploring the aesthetics of tangible interaction : experiments on the perception of hybrid objects. In ACM International conference on Tangible, Embedded and Embodied Interaction (TEI), Eindhoven University of Technology, 14 January 2016 - 2 January 2016. ACM: http://doi.org/10.1145/2839462.2839478

Gheorghes, T., Soranzo, A., & Reidy, J. (2015). The effect of inter-stimulus interval on the partially occluded slalom illusion. In ECVP 2015 ; European Conference on Visual Perception, Liverpool (UK), 23 August 2015 - 27 August 2015. http://journals.sagepub.com/doi/pdf/10.1177/0301006615598674

Acaster, S., Soranzo, A., Taroyan, N., & Reidy, J. (2015). The effects of depth separation on lightness contrast and lightness assimilation. In ECVP 2015 ; European Conference on Visual Perception, Liverpool (UK), 23 August 2015 - 27 August 2015. http://ecvp.org/2015/

Gheorgheos, T., Reidy, J., & Soranzo, A. (2014). The slalom illusion in the context of illusory lines. In 37th European Conference on Visual Perception (ECVP 2014), Belgrade, Sebia, 24 August 2014 - 28 August 2014. http://ecvp2014.org/default.asp

Gilchrist, A., & Soranzo, A. (2014). Partial integration versus local/global anchoring : a test. In 37th European Conference on Visual Perception (ECVP 2014), Belgrade, Sebia, 24 August 2014 - 28 August 2014. http://ecvp2014.org/default.asp

Soranzo, A., Gheorgheos, T., & Reidy, J. (2014). The slalom illusion in the context of partially invisible trajectory. In 37th European Conference on Visual Perception (ECVP 2014), Belgrade, Sebia, 24 August 2014 - 28 August 2014. http://ecvp2014.org/default.asp

Soranzo, A., & Pickard, M. (2013). The Dancing Diamonds Illusion. Perception, 42, 98. http://www.perceptionweb.com/abstract.cgi?id=v130402

Jakovljev, I., Soranzo, A., & Zdravkovic, V. (2013). Color categories for red and blue in Serbian language. Perception, 42, 108. http://doi.org/10.1068/v130508

Soranzo, A., Lugrin, J.-.L., & Cavazza, M. (2011). Photometric relationships affect the simultaneous lightness contrast phenomenon in virtual reality. Perception, 40, 76. http://doi.org/10.1068/v110213

Soranzo, A. (2011). Measuring the articulated-SLC in Virtual Reality conditions. In 20th Ramiro and Zoran Bujas' Days : Book of abstracts, (pp. 156). Croatia: psihologija: http://psihologija.ffzg.unizg.hr/drzb2011-eng

Soranzo, A., Galmonte, A.C.G., & Agostini, T.A. (2009). The role of perceived illumination in the articulated simultaneous lightness contrast. PERCEPTION, 38, 97-98.

Galmonte, A.C.G., Agostini, T.A., Soranzo, A., Gherzil, A., & Schepis, A. (2007). Global belongingness factors can give rise to White's effect - abstract only. Perception, 36 (1suppl), 79. http://journals.sagepub.com/loi/pec?expanded=2009&expanded=2007&expanded=36

Soranzo, A., Puppa, N.D., & Quinn, G. (2007). The role of perceptual distance in the assimilation/contrast shift phenomenon - abstract only. Perception, 36 (1suppl), 82. http://journals.sagepub.com/loi/pec?expanded=2009&expanded=2007&expanded=36

Soranzo, A., Galmonte, A.C.G., & Agostini, T.A. (2006). The apparent luminance contrast in impossible shadow displays. PERCEPTION, 35, 227-228.

Galmonte, A.C.G., Soranzo, A., & Agostini, T.A. (2006). The role of physical contrast in Agostini and Galmonte's reversed-lightness-induction Necker cube. PERCEPTION, 35, 180.

Soranzo, A., & Logvinenko, A.D. (2005). Discounting luminance contrast produced by an illumination edge depends on its shape. PERCEPTION, 34, 24.

Soranzo, A., & Agostini, T. (2004). Does perceptual belongingness affect lightness constancy? PERCEPTION, 33, 111.

Soranzo, A., & Agostini, T. (2003). Illumination-independent lightness constancy improves also when the ratio invariant is violated. PERCEPTION, 32, 41.

Soranzo, A., & Agostini, T. (2002). Articulation and lightness constancy. PERCEPTION, 31, 185.

Agostini, T., Soranzo, A., & Galmonte, A. (1999). The effect of luminance gradients on lightness constancy. PERCEPTION, 28, 64.

Galmonte, A., Agostini, T., & Soranzo, A. (1999). CRT simulation allows the measure of the effect of spatial articulation on lightness. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 40 (4), S746.

Agostini, T., Galmonte, A., & Soranzo, A. (1999). Gelb lighting, type II constancy, and failure of type I temporal constancy. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 40 (4), S746.

Book chapters

Soranzo, A., & Wilson, C. (2014). Virtual environments in visual perception : applications and challenges. In Cipresso, P., & Serino, S. (Eds.) Virtual Reality : Technologies, Medical Applications and Challenges. (pp. 73-80). Nova Science: https://www.novapublishers.com/catalog/product_info.php?products_id=51891&osCsid=b

Ghosh, A., Penders, J., Jones, P.E., Reed, H., & Soranzo, A. (2014). Exploring haptic feedback for robot to human communication. In Sharkey, P., Pareto, L., Broeren, J., & Rydmark, M. (Eds.) The 10th International Conference on Disability, Virtual Reality and Associated Technologies, Proceedings. (pp. 309-312). Reading: University of Reading: http://www.icdvrat.org/2014/papers/ICDVRAT2014_SP05_Ghosh_etal.pdf

Soranzo, A. (n.d.). The dancing diamond illusion. In Champions of illusion. USA: Farrar, Straus and Giroux, LLC

Books

Borgo, M., Soranzo, A., & Grassi, M. (2012). MATLAB for psychologists. New York, N.Y. ; London: Springer.

Posters

Soranzo, A., Petrelli, D., Ciolfi, L., & Reidy, J. (2017). The importance of behaviour as an aesthetic feature. Presented at: ECVP 2017, Berlin, 2017

Gheorgheos, T., Reidy, J., & Soranzo, A. (2014). The slalom illusion in the context of illusory lines. Presented at: 37th European Conference on Visual Perception (ECVP 2014), Belgrade, Sebia, 2014

Soranzo, A., & Newberry, M. (2014). The 'uncatchable smile' illusion in Da Vinci's Bella Principessa portrait depends on the viewing angle. Presented at: 2nd Visual Science of Art Conference (VSAC 2014), Belgrade, Serbia, 2014

Soranzo, A., & Newberry, M. (2014). The 'uncatchable smile' illusion in Da Vinci's Bella Principessa depends on the viewing angle. Presented at: 2nd Visual Science of Art Conference (VSAC 2014), Belgrade, Serbia, 2014

Newberry, M., & Soranzo, A. (2014). A reflective account of how technology can support the learning experience. Presented at: Learning and Teaching Conference, Sheffield Hallam University, UK, 2014

Wilson, C., Soranzo, A., & Newberry, M. (2014). The student experience and the effectiveness of semi-automated personalised feedback. Presented at: Learning and Teaching Conference, Sheffield Hallam University, UK, 2014

Pickard, M., & Soranzo, A. (2012). Da Vinci's La Bella Principessa and the uncatchable smile. Presented at: 1st Visual Science of Art Conference, Alghero (Italy), 2012

Other publications

Soranzo, A., & Newberry, M. (2015). Catching the ‘uncatchable smile’ illusion in Leonardo da Vinci’s La Bella Principessa Painting. Atlas of Science: http://atlasofscience.org/catching-the-uncatchable-smile-illusion-in-leonardo-da-vincis-la-bella-principessa-painting/

Other activities

• Article reviewer for: I am a selected referee for many international journals and books such as :

(i) "Visual Processing Journal"
(ii) "Medical Science Monitor" journal
(iii) Perception
(iv) Parkinsonism and Related Disorders journal
(v) Design journal

• Book reviewer for:

(i) "Different Psychological Perspectives on Cognitive Processes: Current Research Trends in Alps-Adria Region" (Cambridge Scholars Publishing)
(ii) "Virtual rality: Technologies, Medical Applications and Challenges" (Nova Science Publishers inc. New Yorks).

Media

Alessandro is a reader in the Department of Psychology after training at the University of Trieste (Italy) where he obtained a PhD in experimental psychology. His main area of interest is in the psychology of perception and his work on the uncatchable smile of the Mona Lisa has been written about extensively in the national and international press.

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