dr. Sjoerd Stuit
S.M.Stuit@uu.nl
Assistant Professor
Psychology - Experimental Psychology
Gegenereerd op 2018-06-21 00:50:52


Profile

Research:

Early visual processing is sensitive to the simplest aspects of images, such as luminance contrast and edge orientations. Importantly, not all basic image-content is treated equally. For example, sensitivity differs between cardinal and oblique orientations. Moreover, sensitivity also differs based on the spatial frequency content of the image. As such, variations in image content can have a large influence on subsequent visual processing. That means that when we compare behavioral responses to different categories of images, such as their ability to attract attention, systematic or prototypical image-differences can have an unwanted effect on the data. However, is this really an unwanted effect or is it part of the visual information we use to quickly identify the category of the object? For example, can these image-differences help us quickly dissociate one category from another? I am currently working on separating these possibilities using both hypothesis and data driven approaches.

 

Teaching:

The bulk of my lectures are current at University College Utrecht where I teach in the level 2 Cognitive Neuroscience Course. My main focus for these classes is on the mechanisms behind sensory processing and their similarities between sensory systems.

In the Artificial Intelligence Master of Utrecht University, I mainly give lectures and computer practical’s that focus on modelling human data and the application of AI-methodology in vision science.

In the Psychology bachelors of Utrecht University I mainly work behind the scenes. My focus here is on teaching the students to write research reports. 

Gegenereerd op 2018-06-21 00:50:52
Curriculum vitae

Personal & Contact Information

 

I am an inquisitive person with a wide range of interests. As a social scientist, this is expressed as a passion for tackling new research questions as well as questioning long lasting assumptions. As a teacher, I enjoy studying new material to the point where I can talk about the matter in simple to understand terms. In my private life, my desire to learn new things resulted in a love for restoring classic cars as well as fine-tuning and teaching the art of judo (currently 4th degree black belt). 

Publications

 

  • Patel, V., Stuit, S. M., & Blake, R. (2014). Individual differences in the temporal dynamics of binocular rivalry and stimulus rivalry. Psychonomic Bulletin & Review. 

 

  • Stuit, S. M., Paffen, C. L. E., van der Smagt, M. J., & Verstraten, F. A. J. (2014). Image-based grouping during binocular rivalry is dictated by eye-of-origin. PLoS ONE 9(7): e95327. doi:10.1371/journal.pone.0095327

 

  • Stuit, S. M., Paffen, C. L. E., van der Smagt, M. J., & Verstraten, F. A. J. (2011). What is grouping during binocular rivalry. Frontiers in Human Neuroscience, in press.

 

  • Stuit, S. M., Paffen, C. L. E., van der Smagt, M. J., & Verstraten, F. A. J. (2011). Suppressed images selectively affect the dominant percept during binocular rivalry. Journal of Vision, 11(10):7, 1-11.

 

  • Stuit, S. M., Verstraten, F. A. J., & Paffen, C. L. E. (2010). Saliency in a suppressed image affects the spatial origin of perceptual alternations during binocular rivalry. Vision Research, 50(19), 1913 – 1921.

 

  • Stuit, S. M., Cass, J., Paffen, C. L. E., & Alais, D. (2009). Orientation-tuned suppression in binocular rivalry reveals general and specific components of rivalry suppression. Journal of Vision, 9(11):17, 1-15, http://journalofvision.org/9/11/17/, doi:10.1167/9.11.17.

 

  • Cass, J., Stuit, S., Bex, P., & Alais, D. (2009). Orientation bandwidths are invariant across spatiotemporal frequency after isotropic components are removed. Journal of Vision, 9(12):17, 1-14, http://journalofvision.org/9/12/17/, doi:10.1167/9.12.17.

 

Published Abstracts

 

  • Stuit, S. M., Paffen, C. L. E., van der Smagt, M. J., & Verstraten, F. A. J. (2011). "Perceptual grouping during rivalry depends on eye-based rivalry alternations" Perception 40 ECVP Abstract Supplement, page 37

 

  • Stuit, S. M., Paffen, C. L. E., van der Smagt, M. J., & Verstraten, F. A. J. (2011). Suppressed images selectively affect the dominant percept during binocular rivalry [Abstract].  Journal of Vision, 11(11), 313, doi:10.1167/11.11.313

 

  • Stuit S M, van der Smagt M J, Verstraten F A J, Paffen C L E, 2010, "Suppressed images affect the dominant percept during binocular rivalry" Perception 39 ECVP Abstract Supplement, page 124

 

  • Stuit, S. M., Paffen, C. L. E., & Verstraten, F. A. J. (2009). Saliency in a perceptually suppressed image determines the spatial origin of a perceptual alternation during binocular rivalry [Abstract]. Journal of Vision, 9(8):293, 293a, http://journalofvision.org/9/8/293/, doi:10.1167/9.8.293.

 

  • Stuit, S.M., Paffen, C.L.E. & Verstraten, F.A.J. (2009). Saliency in a perceptually suppressed image determines the spatial origin of a perceptual alternation during binoculair rivalry. In Proceedings of the 12th meeting of the Dutch Psychonomic Society.

 

  • Stuit S M, Paffen C L E, Alais D, 2008, "Orientation tuned suppression in binocular rivalry reveals general and specific components of rivalry suppression" Perception 37 ECVP Abstract Supplement, page 102

 

Published Abstracts

  • Holten, V., Stuit, S. M., van der Smagt, M. J., Donker, S. F., & Verstraten, F. A. J. (2014). Interocular competition at higher levels of motion processing, Journal of Vision. 08/2014; 14(10):382-382. DOI:10.1167/14.10.382

 

  • Stuit, S.M., Paffen, C.L.E., Harvey, B.M., van der Smagt, M.J., Verstraten, F.A.J. & Dumoulin, D.O. (2012). Estimating visual field maps with invisible stimuli. Program No. 723.04. 2012 Neuroscience Meeting Planner. New Orleans, LA: Society for Neuroscience, 2012. Online.

 

  • Stuit, S. M., Paffen, C. L. E., van der Smagt, M. J., & Verstraten, F. A. J. (2011). What is grouping during binocular rivalry. In Proceedings of the 13th meeting of the Dutch Psychonomic Society. 

 

  • Verstraten, F. A. J., Stuit, S. M., Paffen, C. L. E., & van der Smagt, M. J. (2011). Binocular rivalry and perceptual grouping. Proceedings of the 19th Trieste Symposium on Perception and Cognition. 1. 

 

  • Stuit, S. M., Paffen, C. L. E., van der Smagt, M. J., & Verstraten, F. A. J. (2011). Perceptual grouping during rivalry depends on eye-based rivalry alternations. Perception, 40, ECVP Abstract Supplement, page 37

 

  • Stuit, S. M., Paffen, C. L. E., van der Smagt, M. J., & Verstraten, F. A. J. (2011). Suppressed images selectively affect the dominant percept during binocular rivalry [Abstract].  Journal of Vision, 11(11), 313, doi:10.1167/11.11.313

 

  • Stuit, S. M., van der Smagt, M. J., Verstraten, F. A. J., Paffen, C. L. E., (2010). Suppressed images affect the dominant percept during binocular rivalry. Perception, 39, ECVP Abstract Supplement, page 124

 

  • Stuit, S. M., Paffen, C. L. E., & Verstraten, F. A. J. (2009). Saliency in a perceptually suppressed image determines the spatial origin of a perceptual alternation during binocular rivalry [Abstract]. Journal of Vision, 9(8):293, 293a, http://journalofvision.org/9/8/293/, doi:10.1167/9.8.293.

 

  • Stuit, S. M., Paffen, C. L. E. & Verstraten, F. A. J. (2009). Saliency in a perceptually suppressed image determines the spatial origin of a perceptual alternation during binoculair rivalry. In Proceedings of the 12th meeting of the Dutch Psychonomic Society. 

 

  • Stuit, S. M., Paffen, C. L. E., Alais, D., (2008). Orientation tuned suppression in binocular rivalry reveals general and specific components of rivalry suppression. Perception, 37, ECVP Abstract Supplement, page 102

 

Presentations

  • NVP, Egmond aan Zee 2013:“Perceptual grouping during binocular rivalry”

 

  • Katholieke Universiteit, Leuven 2013: “Perceptual grouping during binocular rivalry”

 

  • Utrecht University, Utrecht 2013: “Perceptual grouping during binocular rivalry”

 

  • Society for Neuroscience, New Orleans 2012: “Estimating visual field maps with invisible stimuli”

 

  • VSS, Naples 2012: “Disentangling the influences of different cues on perceptual grouping during binocular rivalry”

 

  • ECVP, Toulouse 2011: “What is grouping during rivalry?”

 

  • Utrecht University, Utrecht 2011: “The scope and limits of binocular rivalry suppression”

 

  • Vrije Universiteit, Amsterdam 2011: “What’s grouping during binocular rivalry”

 

Conference Posters

  • NVP, Egmond aan Zee 2011: S.M. Stuit, C.L.E. Paffen M.J. van der Smagt & F.A.J. Verstraten. “What is grouping during binocular rivalry

 

  • VSS, Naples 2011: Stuit, S. M., Paffen, C. L. E., van der Smagt, M. J., & Verstraten, F. A. J. “Suppressed images affect the dominant percept during binocular rivalry”

 

  • ECVP, Lausanne 2010: Stuit, S. M., van der Smagt, M. J., Verstraten, F. A. J. & Paffen, C. L. E., “Suppressed images affect the dominant percept during binocular rivalry”

 

  • NVP, Egmond aan Zee 2009: S.M. Stuit, C.L.E. Paffen & F.A.J. Verstraten. “Saliency in a perceptuele suppressed image determines the spatial origine of a perceptuele alternation during binocular rivalry

 

  • VSS, Naples 2009: S.M. Stuit, C.L.E. Paffen & F.A.J. Verstraten. “Saliency in a perceptuele suppressed image determines the spatial origine of a perceptuele alternation during binocular rivalry

 

  • Mind the Brain, Utrecht 2009: S.M. Stuit, C.L.E. Paffen & F.A.J. Verstraten. “Saliency in a perceptuele suppressed image determines the spatial origine of a perceptuele alternation during binocular rivalry

 

  • International Symposium on the Neural Basis of Decision Making, Groesbeek 2009: S.M. Stuit, C.L.E. Paffen & F.A.J. Verstraten. “Saliency in a perceptuele suppressed image determines the spatial origine of a perceptuele alternation during binocular rivalry

 

  • ECVP, Utrecht 2008: S.M. Stuit, C.L.E. Paffen, J. Cass, D. Alais. “Orientation tuned suppression in binocular rivalry reveals general and specific components of rivalry suppression”

 

 

 

Gegenereerd op 2018-06-21 00:50:52
All publications
  Articles - Scholarly publications
Stuit, Sjoerd, Brascamp, Jan, Barendregt, Maurits, van der Smagt, Maarten & te Pas, Susan (25.10.2017). Image-based and eye-based influences on binocular rivalry have similar spatial profiles. Journal of Vision, 17 (12) (11 p.).
Holten, Vivian, Stuit, Sjoerd M., Verstraten, Frans A J & van der Smagt, Maarten J. (01.10.2016). Grouping of optic flow stimuli during binocular rivalry is driven by monocular information. Vision Research, 127, (pp. 84-91) (8 p.).
Patel, Vaama, Stuit, Sjoerd & Blake, Randolph (2015). Individual differences in the temporal dynamics of binocular rivalry and stimulus rivalry. Psychonomic Bulletin and Review, 22 (2), (pp. 476-482) (7 p.).
Holten, Vivian, Donker, Stella F., Stuit, Sjoerd M., Verstraten, Frans A J & van der Smagt, Maarten J. (2015). Visual directional anisotropy does not mirror the directional anisotropy apparent in postural sway. Perception, 44 (5), (pp. 477-489) (13 p.).
Stuit, Sjoerd M., Paffen, Chris L E, Van Der Smagt, Maarten J. & Verstraten, Frans A J (02.07.2014). Image-based grouping during binocular rivalry is dictated by eye-of-origin. PLoS One, 9 (7) (12 p.).
Stuit, S.M., Paffen, C.L.E., Van der Smagt, M.J. & Verstraten, F.A.J. (2011). Suppressed images selectively affect perceptual dominance in binocular rivalry. Journal of Vision, 11 (10), (pp. 1-11) (11 p.).
Stuit, S.M., Paffen, C.L.E., Van der Smagt, M.J. & Verstraten, F.A.J. (2011). What is grouping during binocular rivalry?. Frontiers in Human Neuroscience, 5 (117).
Cass, J., Stuit, S.M., Bex, P. & Alais, D. (2010). Orientation bandwiths are invariant across spatiotemporal frequency after isotropic components are removed. Journal of Vision, 9 (8), (pp. 293-293a) (1 p.).
Stuit, S.M., Verstraten, F.A.J. & Paffen, C.L.E. (2010). Saliency in a suppressed image affects the spatial origin of perceptual alternations during binocular rivalry. Vision Research, 50, (pp. 1913-1921) (9 p.).
Cass, J., Stuit, S.M., Bex, P. & Alais, D. (2009). Orientation bandwiths are invariant across spatiotemporal frequency after isotropic components are removed. Journal of Vision, 9 (12), (pp. 1-14) (14 p.).
Stuit, S.M., Cass, J. & Paffen, C.L.E. (2009). Orientation-turned suppresion in binoculair rivalry reveals general and specific components of rivalry suppression. Journal of Vision, 9 (11) (17), (pp. 1-15) (15 p.).
  Prize (including medals and awards) - Other output
Stuit, S.M. 01.01.2016 Recipient Neuroscience and Cognition Short Visit Funding
Stuit, S.M. 01.01.2015 Recipient Neuroscience and Cognition Seed Money
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Gegenereerd op 2018-06-21 00:50:52

My current research focusses on two topics:

1) What happens to visual information that is suppressed from awareness?

and

2) What are the visual building blocks of emotional faces?

 

To test the fate of visual information that is suppressed from awareness I have been using Contineous Flash Suppression (CFS) and Binocular Rivalry (BR) as tools. Current projects focus on the 1) visual field representation of suppressed images and 2) the integration of coherent images during bistable perception.

 

In a second line of research, I am using the findings from our CFS and BR studies to test if the building blocks of emotional faces can influence behavior outside of awareness. Since we have a pretty good idea about what happens to suppressed images (where they are and are not represented in the visual system), these techniques allow us to infer the level of processing at which features related to emotion first affect behavior. 

Gegenereerd op 2018-06-21 00:50:52

Coördinator & Lecturer:

Cognitive Systems (2014-current)

Methods in Artifical Intelligence Reserach: Cognitive Processing  (2014-current)

Cognitive Neuroscience 1, UCU (2015-current)

Cognitive Neuroscience 2, UCU (2014-current)

 

Werkgroups:

Inleiding Cognitie Wetenschappen (2014)

 

Student research:

Internship Neuroscience & Cognition (2011)

Intern TCP – external (2011, 2014)

Thesis TCP – external (2011, 2014)

Bachelor Research Thesis Psychology (2009-2012, 2014-2016)

Master Thesis Artificial Intelligence (2015-current)

 

Computer Practicals

Neuroscience & Cognition Master Fundamentals, Experimental Skills (2008-2012)

Experimenter 1 (2009)

Practicum Cognitive Neurowetenschappen, psychophysica (2009)

Experimenteren & Registreren 2 (2007, 2010)

 

Gegenereerd op 2018-06-21 00:50:52
Additional functions and activities

Docent Masterclass Psychologie in een dag, Schouten en Nelissen University;

Onderwerpen:

  • Geschiedenis en stromingen
  • Wetenschapsfilosofie
  • Leren en geheugen
  • Individuele verschillen en persoonlijkheid
  • Interpreteren en begrijpen: wat zijn structurele denkfouten?
  • Wat beïnvloedt de keuzes die we maken?
Gegenereerd op 2018-06-21 00:50:52
Full name
dr. S.M. Stuit Contact details
Martinus J. Langeveldgebouw

Heidelberglaan 1
Room H0.29
3584 CS  UTRECHT
The Netherlands


Phone number (direct) +31 30 253 3643
Gegenereerd op 2018-06-21 00:50:52
Last updated 29.11.2017