Proyectos de Investigación

People

Principal Investigator

 

Dr. Ignacio Serrano-Pedraza   

 

iserrano@ucm.es  

 

 

My research is focused on the study of human visual system. I use a combination of human psychophysics and computational modelling techniques to uncover the functional characteristics of the neuronal mechanisms of visual functions including motion perception, spatial vision, and stereovision.

Great news about ASTEROID! We are finalist in the Bright Ideas in Health Awards 2021 in

Development of an Innovative Device or Technology

Measurement of Binocular Visual Function in Children

 

ResearchGate

Publons

Pubmed

Visiting Researcher at Newcastle University    


PhD Students

 

Sandra Arranz-Paraíso (2017-)     

Having completed a Bachelor in Psychology (Cognitive Science Track) granted with Grade Extraordinary Prize and a Master’s degree about statistical and mathematical methods applied to behavioural research (Master thesis: Optimization of the non-parametric Robbins-Monro procedure for threshold estimation and its comparison with Bayesian adaptive procedures). She is now doing her PhD in the field of visual psychophysics; making advances in order to characterize the inhibitory mechanisms underlying motion perception. SAP is therefore mainly interested in 2D motion perception, but she is also interested in haptic perception in virtual environments. Currently she is collaborating with the Prof. Manuel Ferre Pérez at the Automation and Robotics center of CSIC and Polytechnic University of Madrid (ETSI II).

SAP is supported by the fellowship FPU16/02683 from Ministerio de Educación (Spain).

 

-Tarawneh, G., Nityananda, V., Rosner, R., Errington, S., Errington, S., Herbert, W., Arranz-Paraíso, S., Busby, N., Tampin, J., Read, J.C.A., & Serrano-Pedraza, I. (2018) Contrast thresholds reveal different visual masking functions in humans and praying mantises. Biology Open. 7, bio029439. doi:10.1242/bio.029439

 

-Arranz-Paraíso, S. & Serrano-Pedraza, I. (2018) Testing the link between visual suppression and intelligence. PLoS ONE. Jul 6;13(7):e0200151. doi: 10.1371/journal.pone.0200151.

This paper has won the SEPEX prize for the best paper 2018 for young investigators! Congratulations Sandra!

 

-Garcia-Valle, G., Arranz-Paraiso, S., Serrano-Pedraza, I., & Ferre, M. (2021) Estimation of Torso Vibrotactile Thresholds using Eccentric Rotating Mass Motors. IEEE Transactions on Haptics, doi: 10.1109/TOH.2020.3048290.

 

Arranz-Paraíso, S., Read, J.C.A. & Serrano-Pedraza, I. (2021) Reduced surround suppression in monocular motion perception. Journal of Vision;21(1):10. doi: https://doi.org/10.1167/jov.21.1.10.

 

ResearchGate


 

Omar Bachtoula (2020-)

Omar has a Psychology degree and he is finishing his Master about statistical and mathematical methods applied to behavioral research. He is starting the PhD in October 2020 supported by the fellowship PRE2019-089560 from Ministerio de Ciencia, Innovación y Universidades (Spain) associated to my project PGC2018-093406-B-I00. He is interested in the implications of binocular interaction in motion perception.

 

He is analysing multiple motion experiments of the lab comparing performance between males and females. He found very interesting results and presented them at the 8th Iberian Conference on Perception

Bachtoula, O., Arranz-Paraíso, S., Luna, R., & Serrano-Pedraza, I. (2019). Are there sex differences in visual motion processing?  8th Iberian Conference on Perception. Universidad Complutense de Madrid. San Lorenzo de El Escorial, Madrid (Spain). Talk 15 min.

 

He has also collaborated in a project where we measured disparity thresholds using ASTEROID (3D stereotest tablet) in collaboration with Prof. Jenny Read.

Read, J.C.A., Wong, Z.Y., Yek, X., Wong, Y.X., Batchtoula, O., Llamas-Cornejo, I., & Serrano-Pedraza, I. (2020). ASTEROID Stereotest v1.0: lower stereo thresholds using smaller, denser, and faster dots. Opthalmic and Physiological Optics. doi: 10.1111/opo.12737. Epub ahead of print. PMID: 32989799.


 

Ichasus LLamas Cornejo (2020-)

Ichasus worked in my lab during his Practicum. He is finishing his Master's degree about statistical and mathematical methods applied to behavioral research. He has collaborated in a project where we have measured disparity thresholds and contrast thresholds to study the orientation processing in spatial vision and stereopsis. He is starting the PhD in October 2020.

 

He presented his results at the 8th Iberian Conference on Perception.

Llamas-Cornejo, I., Bachtoula, O., Boegaerts, D., Read, J.C.A., Peterzell, D., & Serrano-Pedraza, I. (2019). Determining the underlaying mechanisms for detecting the orientation of stereo corrugations by measuring individual differences. 8th Iberian Conference on Perception. Universidad Complutense de Madrid. San Lorenzo de El Escorial, Madrid (Spain).

 

And at the 43rd European Conference on Visual Perception

Llamas-Cornejo, I., & Serrano-Pedraza, I. (2021). The stereoscopic orientation anisotropy decreases with increasing temporal frequency. 43rd European Conference on Visual Perception https://ecvp2021.org/ TALK 15 min.

 

He has also collaborated in a project where we measured disparity thresholds using ASTEROID (3D stereotest tablet) in collaboration with Prof. Jenny Read.

Read, J.C.A., Wong, Z.Y., Yek, X., Wong, Y.X., Batchtoula, O., Llamas-Cornejo, I., & Serrano-Pedraza, I. (2020). ASTEROID Stereotest v1.0: lower stereo thresholds using smaller, denser, and faster dots. Opthalmic and Physiological Optics. doi: 10.1111/opo.12737. Epub ahead of print. PMID: 32989799.

 

 


Former PhD Students

 

Raúl Luna del Valle (2016-2020)

 

RLV is supported by the fellowship BES-2015-074077 from Ministerio de Economía y Competitividad (Spain). Having completed a Bachelor in Psychology and a Master’s degree about statistical and mathematical methods applied to behavioral research, he is now doing his PhD in the field of visual psychophysics; making advances in order to functionally characterize the inhibitory mechanisms found in motion perception. Particularly, he is studying the inhibition underlying the interaction between motion sensors tuned to coarse and fine scales. RLV is therefore mainly interested in 2D motion perception, but he has also ventured into the areas of 3D motion perception and spatial vision. Currently, he is teaching Psychology at Colegio Universitario Cardenal Cisneros. Update (2021): He is starting a Juan de la Cierva’s Fellowship at CSIC (Instituto de Óptica Daza de Valdés, Madrid). 

 

Raúl defended his Thesis on 18-12-2020 with a marking of "Sobresaliente Cum Laude". Congratulations!

 

Luna, R. & Serrano-Pedraza, I. (2018) Temporal frequency modulates the strength of the inhibitory interaction between motion sensors tuned to coarse and fine scales. Journal of Vision. 3;18(13):17. doi: 10.1167/18.13.17.

Luna R., & Serrano-Pedraza, I. (2020) Interaction between motion scales: When performance in motion discrimination is worse for a compound stimulus than for its integrating components. Vision Research. 20;167:60-69. https://doi.org/10.1016/j.visres.2019.12.002. PMID: 31972446. 

Luna R., & Serrano-Pedraza, I. (2020) Evidence for different spatiotemporal mechanisms using duration thresholds: An individual differences approach. Vision Research. 23;175:58-74. doi: 10.1016/j.visres.2020.07.002. PMID: 32712430.

Luna R., Serrano-Pedraza, I., Gegenfurtner, K.R., Schütz, A.C., & Souto, D. (2021) Achieving visual stability during smooth pursuit eye movements: Directional and confidence judgements favor a recalibration model. Vision Research. 184:58-73. doi: https://doi.org/10.1016/j.visres.2021.03.003.