Dr Gunnar Schmidtmann
Profiles

Dr Gunnar Schmidtmann

Lecturer in Optometry

School of Health Professions (Faculty of Health and Human Sciences)

Role

Lecturer in Optometry

First Year Tutor

Qualifications

2016 - 2017: Postdoctoral Research Fellow (The Research Institute of the McGill University Health Centre, McGill University, Canada)

2013 - 2016: Postdoctoral Research Fellow (McGill Vision Research, Department of Ophthalmology, McGill University, Canada)

2008 - 2013: PhD Vision Science (Glasgow Caledonian University, UK)

2005 - 2008: BSc Optometry (University of Applied Sciences, Lübeck, Germany)

Professional membership

Vision Science Society (VSS)
Applied Vision Society (AVA)
American Psychological Association (APA)
The Association for Research in Vision and Ophthalmology (ARVO)

Teaching interests

OPT403 - Optics - Module Leader
OPT404 - Visual Perception 
OPT402 - Clinical Optometry Skills

Research interests

Contour - and curvature encoding and shape perception
Spatial summation, probability summation and signal detection theory
Peripheral vision
Face perception and emotions
Visual function of patients with traumatic brain injury and stroke
Glaucoma and intraocular pressure


Grants & contracts

Co-grantholder with Ian Gold (PI) and Elevate Solomonova on SSHRC (Social Sciences and Humanities Research Council, Canada) Insight Grant #435-2017-1215 (McGill University, Montreal, Canada)

Journal Articles

 

1.    Schmidtmann, G., Ruiz, T., Reynaud, A., Spiegel,D.P., Lague-Beauvais, M., Hess, R.F., Farivar, R. (2017), Sensitivity to binocular disparity is reduced by mild traumatic brain injury. Invest Ophthalmol Vis Sci, 2017; 58:2630–2635

2.    Schmidtmann, G. &  Kingdom, F.A.A., (2017), Nothing more than a pair of curvatures: A common mechanism for the detection of both radial and non-radial frequency patterns. Vision Research, 134, 18–25 

3.    Baldwin, A. S., Schmidtmann, G., Kingdom, F.A.A., & Hess, R. F. (2016), Rejecting probability summation for radial frequency patterns, not so Quick! Vision Research, 122,124–134. 

4.    Schmidtmann, G., Ouhnana, M., Loffler, G., & Kingdom,F.A.A. (2016), Imagining circles - empirical data and a perceptual model for the Arc-size Illusion, Vision Research, 121, 50-56 

5.    Schmidtmann, G., Jennings, B. J., & Kingdom, F.A.A. (2015), Shape recognition: convexities, concavities and things in between. Scientific Reports, 5,17142.http://doi.org/10.1038/srep17142 

6.    Schmidtmann, G., Logan, A.J.,Kennedy,G.J., Gordon, G.E., Loffler, G. (2015), Distinct lower visual field preference for object shape. Journal of Vision, 15(5):18, 1–15

7.    Schmidtmann, G., Jennings, B. J., Bell,J., & Kingdom, F. A. A. (2015), Probability, not linear summation, mediates the detection of concentric orientation-defined textures. Journal of Vision, 15(16):6, 1–19

8.    Kingdom, F. A. A., Baldwin,A.S., Schmidtmann,G. (2015), Modeling probability and additive summation for detection across multiple mechanisms under the assumptions of signal detection theory. Journal of Vision, 15, 1. doi:10.1167/15.5.1

9.    Schmidtmann, G., Gordon, G.E., Bennett, D.M., & Loffler,G. (2013), Detecting shapes in noise: tuning characteristics of global shape mechanisms, Frontiers in Computational Neuroscience, 7, 37 ,1-14 

10. Schmidtmann, G., Kennedy, G.J., Orbach, H.S., & Loffler,G. (2012), Non-linear global pooling in the discrimination of circular and non-circular shapes. Vision Research, 62C,  44-56 

11. Schmidtmann, G., Jahnke, S., Seidel,E.J., & Sickenberger, W., Grein, H.J. (2011), Intraocular pressure fluctuations in professional brass and woodwind musicians during common playing conditions. Graefes Arch Clin Exp Ophthalmol, 249 (6), 895-901. 

12. Jahnke, S, Schmidtmann, G., Grein, H.J.,Seidel,E.J., & Sickenberger, W. (2011), Dynamik des Augeninnendrucks bei professionellen Holz - und Blechbläsern während alltäglicher Spielsituationen. Musiker Medizin und Physiologie, 3, 70-78  

 

Conference Abstracts

1.   Schmidtmann, G., Jennings, B.J., Sandra, D.A., Gold, I., The McGill Face Database: A novel database for facial expressions of mental states.AVA Spring Meeting 2018

2.   Schmidtmann, G., Wehbé, F., Sandra, D.A., Farivar, R., The influence of face identity noise on face recognition inhealthy subjects and patients with mild traumatic brain injury - an equivalent noise approach. ECVP 2017 

3.    Schmidtmann, G., Desjardins, A., Kingdom, F.A.A., RF shape channels: The processing of compound Radial Frequency patterns. VSS, 2017, Journal of Vision. 2017; 17(10): 1255-1255, 2017 

4.    Schmidtmann, G., Ruiz, T., Reynaud, A.,Spiegel, D., Laguë-Beauvais, M., Hess, R.F., Farivar, R. (2017), Sensitivity to binocular disparity is reduced by mild traumatic brain injury. ARVO, 2017

5.    Schmidtmann, G., Sleiman, D., Pollack, J., Gold, I., Reading the Mind in the Blink of an Eye - A novel database for facial expressions., ECVP 2016, Perception, 45, 238-239, 2016. 

6.    Schmidtmann, G., Kingdom, F.A.A., Nothing more than a curve: a common mechanism for the detection of radial and non-radial frequency patterns.” VSS 2016, Journal of Vision, 16(12), 416, 2016.

7.    Schmidtmann, G., Kingdom, F.A.A., Loffler, G., The Processing of compound radial frequency patterns. AVA Christmas Meeting 2015, Perception 45, 687-710, 2015.  

8.    Schmidtmann, G., Ouhnana, M., Kingdom, F.A.A., Imagining Circles: A perceptual model for the Arc-Size Illusion. ECVP 2015, Perception,44, 248, 2015. (presented by Kingdom, F.A.A.) 

9.    Schmidtmann, G., Jennings, B.J., Kingdom, F.A.A., Shape recognition: convexities, concavities and things in between. VSS 2015, Journal of Vision, 15(12), 242, 2015. 

10.    Baldwin, A.S., Schmidtmann, G., Kingdom, F.A.A., Rejecting probability summation for RF patterns, not so Quick! VSS 2015, Journal of Vision, 15(12), 1031, 2015.  

11. Kingdom,F.A.A., Baldwin, A.S., Schmidtmann, G., Modelling probability summation for the detection of multiple stimuli under the assumptions of signal detection theory.” VSS 2015, Journal of Vision,15(12), 473, 2015. 

12. Jennings, B.J., Schmidtmann, G., Kingdom, F.A.A., Shape recognition: the predominate role of convexities. AVA Christmas Meeting 2014, Perception, 44, 459, 2015.  

13. Schmidtmann, G., Jennings, B.J., Guimond, S., Kingdom, F.A.A., Shape recognition: convexities, concavities and things in between. Optical Society of America Meeting 2014, Journal of Vision, 14(15), 50, 2014.  

14. Schmidtmann, G., Jennings, B.J., Kingdom, F.A.A., Spatial integration of orientation-defined texture. VSS 2014, Journal of Vision, 14(10), 1427, 2014.

15. Schmidtmann, G., Kingdom, F.A.A., Imagining Circles. AVA Christmas Meeting 2013, Perception, 43, 1127, 2014.  

16. Schmidtmann, G., Kennedy, G.J., Orbach, H.S., Loffler, G., Processing of compound radial frequency patterns, CVR conference 2013, York University, Toronto,Canada

17. Schmidtmann, G., Kennedy, G.J., Orbach, H.S., Loffler, G., The role of the type of local contour in global shape discrimination. VSS 2013, Journal of Vision,13(9), 1001, 2013.

18. Schmidtmann, G., Kennedy, G.J., Orbach, H.S., Loffler, G., Inferior superiority: shape discrimination is best in the lower visual field. ECVP 2012, Perception, 41, 217-218, 2012. 

19. Schmidtmann, G., Kennedy, G.J., Orbach, H.S., Loffler, G., Sampling shape space: discrimination of morphed radial frequency patterns. ECVP 2011, Perception, 40, 209, 2011. 

20. Schmidtmann,G., Kennedy, G.J., Orbach, H.S., Loffler, G., Local curvature detectors and global shape processing. AVA Christmas Meeting 2010, Perception, 40, 118, 2011. 

21. Schmidtmann, G., Kennedy, G.J., Orbach, H.S., Loffler, G. Non-linear global summation inthe perception of non-circular contours. AVA Christmas Meeting 2009, Perception, 39, 270, 2010. 

22. Schmidtmann, G., Kennedy, G.J., Orbach, H.S.,Loffler, G. Global pooling in shape perception. ECVP 2009, Perception, 38, 75, 2009. 

 

Links

Personal Website: http://www.gunnar-schmidtmann.com

PubMed: https://www.ncbi.nlm.nih.gov/pubmed/?term=gunnar+schmidtmann

Academia.edu: https://ymouth.academia.edu/GunnarSchmidtmann