Edwin Dalmaijer

Edwin

I’m Edwin, an early stage research fellow in experimental psychology at the University of Oxford. I like research, tech stuff, teaching, and kittens. On this page you can find my job history, publications, and other output (talks, software, teaching materials, everything).

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Past and current positions

Oxford logo

University of Oxford


Early Stage Research Fellow, July 2014 – Present

Currently, I am a PhD student at the Cognitive Neurology lab of Masud Husain, funded through a Marie Curie grant provided by the European Commission, titled Individualised Diagnostics and Rehabilitation for Attentional Disorders (INDIREA). My research focusses on (in)attention and working memory, specifically on the fundamental mechanism by which we form short-term memories, and on finding potential neuropharmacological treatments of inattention.

The European Commission would like you to know that, although they fund me, all of the views expressed on in my work are my own: They do not necessarily reflect the views of the European Commission. While we’re on the subject, I would also like to stress that the views expressed by the European Commission are their own, and do not necessarily reflect my views.

Utrecht logo

Utrecht University


Research Assistant, September 2011 – July 2014

In Utrecht, as a Research Assistant, I helped running research projects (collecting data, programming experiments, and developing data analysis software). Most of the projects concerned eye movements and psychophysics, and are slowly starting to make their way to publication.

As a Teaching Assistant, I helped with five BSc modules and two MSc modules. I taught practicals, developed course materials, and gave a well-received lecture to about 350 Psychology undergraduates.

Publications

My publications are listed below. Under Other output, you can find my software and course materials. If you spot anything that could be useful, please don’t hesitate to contact me, so I can send you a copy.

Academic Books and Book Chapters

  • Dalmaijer, E.S. (2016). Python for Experimental Psychologists. Abbingdon, United Kingdom: Routledge (part of Taylor and Francis Publishing Group). Preview and buy it here!

Peer-reviewed articles

pre-prints

Please note that pre-prints are not peer reviewed. All other publications listed here are.

  • Dalmaijer, E.S. (pre-print). Is the low-cost EyeTribe eye tracker any good for research? PeerJ PrePrints, 2:e585v1. doi:10.7287/peerj.preprints.585v1

2016

  • Dalmaijer, E.S., Pama, E.A.C., & Prins, S. (2016). United Kingdom: Illness should not curtail PhD funding. Nature, 539, p. 495. doi:10.1038/539495e
  • Dalmaijer, E.S., Nijenhuis, B.G., & Van der Stigchel, S. (2016). Commentary: Life is unfair, and so are racing sports: Some athletes can randomly benefit from alerting effects due to inconsistent starting procedures. Frontiers in Psychology, 7(119). doi: 10.3389/fpsyg.2016.00119
  • Mulckhuyse, M., & Dalmaijer, E.S. (2016). Distracted by danger: Temporal and spatial dynamics of visual selection in the presence of threat. Cognitive, Affective, and Behavioral Neuroscience, 16(2), p. 315-324. doi:10.3758/s13415-015-0391-2

2015

  • Dalmaijer, E.S., Nijenhuis, B.G., & Van der Stigchel, S. (2015). Life is unfair, and so are racing sports: Some athletes can randomly benefit from alerting effects due to inconsistent starting procedures. Frontiers in Psychology, 6(1618). doi: 10.3389/fpsyg.2015.01618
  • Dalmaijer, E.S., Van der Stigchel, S, Nijboer, T.C., Cornelissen, T.H., & Husain, M. (2015). CancellationTools: All-in-one software for administration and analysis of cancellation tasks. Behavior Research Methods, 47(4), p. 1065-1075. doi:10.3758/s13428-014-0522-7 [PDF]
  • Hoppenbrouwers, S.S., Van der Stigchel, S., Slotboom, J., Dalmaijer, E.S., & Theeuwes, J. (2015). Disentangling attentional deficits in psychopathy using visual search: failures in the use of contextual information. Personality and Individual Differences., 86, p. 132-138. doi:10.1016/j.paid.2015.06.009
  • Mills, M., Dalmaijer, E.S., Van der Stigchel, S., & Dodd, M.D. (2015). Effects of task and task-switching on temporal inhibition of return, facilitation of return, and saccadic momentum during scene viewing. Journal of Experimental Psychology: Human Perception & Performance, 41(5), p. 1300-1314. doi:10.1037/xhp0000076

2014

  • Bethlehem, R. A. I., Dumoulin, S. O., Dalmaijer, E. S., Smit, M., Berendschot, T. T. J. M., Nijboer, T. C. W., & Van der Stigchel, S. (2014). Decreased Fixation Stability of the Preferred Retinal Location in Juvenile Macular Degeneration. PLoS ONE, 9(6), e100171. doi:10.1371/journal.pone.0100171
  • Dalmaijer, E.S., Mathôt, S., & Van der Stigchel, S. (2014). PyGaze: an open-source, cross-platform toolbox for minimal-effort programming of eye tracking experiments. Behavior Research Methods, 46, p. 913-921. doi:10.3758/s13428-013-0422-2 [PDF]
  • Mathôt, S., Dalmaijer, E.S., Grainger, J., & Van der Stigchel, S. (2014). The pupillary light response reflects exogenous attention and inhibition of return. Journal of Vision, 14:7, 1-9. doi:10.1167/14.14.7 [PDF]

Other output

Talks

  • Dalmaijer, E.S. (2016, November). Encoding of several items into visual working memory occurs in parallel. Donders Discussions, Nijmegen, The Netherlands.
  • Dalmaijer, E.S. (2016, October). Joint visual working memory through implicit collaboration. Colloquium on multiple eye tracker classrooms, Lund, Sweden.
  • Dalmaijer, E.S., (2016, July). Is encoding into visual working memory a serial process? CNN meeting, Ghent, Belgium
  • Dalmaijer, E.S., (2016, March). Is encoding into visual working memory a serial process? OxVis (biannual meeting of Oxford vision scientists), Oxford, United Kingdom
  • Dalmaijer, E.S., (2016, January). Is encoding into visual working memory a serial process? Working Memory Day, Oxford, United Kingdom
  • Dalmaijer, E.S., (2015, November). Is encoding into visual working memory a serial process? Evidence from computational modelling. DPhil Seminar, Oxford, United Kingdom
  • Dalmaijer, E.S., King, R.L., Oderkerk, C.A.T. (2015, June). The limits of Visual Working Memory. Center for Visual Cognition, Copenhagen, Denmark.
  • Dalmaijer, E.S. (2015, March). Open source software in Experimental Psychology. Attention, Brain and Cognitive Development Lab, Oxford, United Kingdom. [slides]
  • Dalmaijer, E.S. (2014, Jan). Creating experiments using OpenSesame. University of Cambridge, Cambridge, United Kingdom. [materials]
  • Dalmaijer, E.S., Nierop, L.E. van, & Zandvoort, M.J.E. van (2013, May). The effects of galvanic vestibular stimulation on eye movements and visual perception. Mind the Brain Symposium, Utrecht, Netherlands.

Conference proceedings

Bold text indicates my name, not necessarily the presenter! (Usually that would be the first author.)

  • Dalmaijer, E.S., Stokes, M.G., & Husain, M. (2016, November). Is encoding into visual working memory a parallel process? Evidence from statistical modelling and EEG decoding. Society for Neuroscience, San Diego, CA, USA.
  • Mills, M., Rosen, M.L., Dalmaijer, E.S., & Dodd, M.D. (2016, November). Variance Decomposition of Two Million Eye Movements: A Guide for Focusing Resources in Scene Perception Research. Poster presented at the 57th annual meeting of the Psychonomic Society, Boston, MA, USA.
  • Rosen, M.L., Mills, M., Dalmaijer, E.S., & Dodd, M.D. (2016, November). The relationship between eye movements & task performance depends on how quickly observers settle into a particular mode of viewing. Poster presented at the 57th annual meeting of the Psychonomic Society, Boston, MA, USA.
  • Dalmaijer, E.S., & Husain, M. (2016, May). Is encoding into visual working memory a serial process? Poster presented at Vision Science Society’s annual meeting, St. Pete Beach, Florida, USA.
  • Van Uijen, S. L., Engelhard, I. M., & Dalmaijer, E. S. (2016, April). Not all safety behaviors maintain threat beliefs. Paper presented at the 8th European Meeting on Human Fear Conditioning (EMHFC), Soesterberg, the Netherlands.
  • Dalmaijer, E.S., Nijenhuis, B.G., & Van der Stigchel, S. (2015, December). Life is unfair, and so is speed skating: Some athletes can randomly benefit from alerting effects due to inconsistent starting procedures. Poster presented at the biennial meeting of the Dutch Psychonomic Society (NVP Winter Conference), Egmond aan Zee, Netherlands. [poster, abstract booklet]
  • Van Uijen, S. L., Engelhard, I. M., & Dalmaijer, E. S. (2015, November). Avoidance behavior maintains threat beliefs. In H. Levy and A. Radomsky, Employ or Eliminate? Novel Experimental Investigations of Safety Behavior in CBT. Paper presented at the Annual Convention of the Association for Behavioral and Cognitive Therapies (ABCT), Chicago, USA.
  • Dalmaijer, E.S., & Husain, M. (2015, August). Visual working memory resources are dynamically redistributed to saccade targets before saccade onset. Poster accepted at the European Conference on Eye Movements, Vienna, Austria. [abstract booklet]
  • Mathôt, S., Van der Linden, L., Ort, E., Schreij, D., Van der Stigchel, S., & Dalmaijer, E.S. (2015, August). Easy as Py: Eye Tracking with OpenSesame and PyGaze. Poster accepted at the European Conference on Eye Movements, Vienna, Austria. [abstract booklet]
  • Defoe, I.N., Dubas, J.S., Dalmaijer, E.S., & Van Aken, M.A.G. (2015, May). Is the Peer Presence Effect on Heightened Adolescent Risky Decision Making Only Present in Males? Poster presented at the biennial meeting of the Society for Research in Child Development, Philadelphia, USA.
  • Van Uijen, S. L., Engelhard, I. M., & Dalmaijer, E. S. (2015, May). Avoidance behavior maintains threat beliefs. Poster presented at the annual convention of the Association for Psychological Science (APS), New York, USA.
  • Bahle, B., Mills, M., Dalmaijer, E.S., Van der Stigchel, S., & Dodd, M.D. (2015). The effects of task- and switch-predictability on oculomotor inhibition of return during visual search. Journal of Vision, 15(12), p. 777.
  • Mills, M., Bahle, B., Dalmaijer, E.S., Van der Stigchel, S., & Dodd, M.D. (2015). Effects of task- and switch-predictability on task-switching during scene viewing. Journal of Vision, 15(12), p. 778.
  • Dalmaijer, E.S., Van der Stigchel, S, Nijboer, T.C., Cornelissen, T.H., & Husain, M. (2014, October). CancellationTools: All-in-One Software to Collect and Analyse Multi-Target Visual Search Data, Oxford, United Kingdom. [poster]
  • Dodd, M., Mills, M., Dalmaijer, E., & Stigchel, S. V. der. (2014). The influence of task set and task switching on visual behavior. Journal of Vision, 14(10), p. 710. doi:10.1167/14.10.710
  • Grubaugh, J., Mills, M., Bahle, B., Dalmaijer, E., Stigchel, S. V. der, & Dodd, M. (2014). Changing how you search alters the influence of memory on attentional allocation and eye movements. Journal of Vision, 14(10), p. 1072. doi:10.1167/14.10.1072
  • Mills, M., Dalmaijer, E., Stigchel, S. V. der, & Dodd, M. D. (2014). Influence of task switching on inhibition of return and scan paths. Journal of Vision, 14(10), p. 98. doi:10.1167/14.10.98
  • Pas, S. F. te, Pont, S. C., Dalmaijer, E. S., & Hooge, I. T. C. (2014). When comparing illumination conditions observers rely more on cast shadows than on highlights and shading. Journal of Vision, 14(10), p. 70. doi:10.1167/14.10.70
  • Dalmaijer, E.S., Van der Stigchel, S., Linden, L. van der, Kruijne, W., Schreij, D., & Mathôt, S. (2013). OpenSesame opens the door to open-source and user-friendly eye-tracking research. In K. Holmqvist, F. Mulvey & R. Johansson (Eds.), Journal of Eye Movement Research, 6, p. 547. Lund, Sweden, ECEM. [poster, abstract book]
  • Pas, S.F. te, Pont, S.C., Dalmaijer, E.S., & Hooge, I.T.C. (2013). Observers rely more on shadows than on shading and highlights in comparing illumination conditions. Perception, 42, ECVP Abstract Supplement, p. 66.

Public software

  • Dalmaijer, E.S. (2014). EyeTribe Toolbox for Matlab [Computer software]. Oxford, United Kingdom: PyGaze development team. Available from github.com/esdalmaijer/EyeTribe-Toolbox-for-Matlab
  • Dalmaijer, E.S. (2014). PyTribe, Python wrapper for the EyeTribe tracker [Computer software]. Oxford, United Kingdom: PyGaze development team. Available from github.com/esdalmaijer/PyTribe
  • Dalmaijer, E.S. (2014). www.cancellationtools.org, official website for CancellationTools, software to administer and analyse cancellation tasks [Website]. Oxford, United Kingdom: CancellationTools development team. Available from www.cancellationtools.org
  • Dalmaijer, E.S. (2014). CancellationTools, all-in-one software to administer and analyse cancellation tasks in clinical practice and research. [Computer software]. Oxford, United Kingdom: CancellationTools development team. Available from www.pygaze.org/cancellation/downloads/
  • Dalmaijer, E.S. (2013). www.pygaze.org, official website for the PyGaze toolbox [Website]. Utrecht, Netherlands: PyGaze development team. Available from www.pygaze.org
  • Dalmaijer, E.S., & Mathôt, S. (2013). PyGaze, open-source toolbox for eye tracking using Python [Computer software]. Utrecht, Netherlands: PyGaze development team. Available from http://pygaze.org/downloads
  • Dalmaijer, E.S. (2013). Gaze Contingency plug-ins for OpenSesame [Computer software]. Utrecht, Netherlands: OpenSesame development team. Available from: http://cogsci.nl/esdalmaijer/eyetracker_plugins/
  • Dalmaijer, E.S., & Mathôt, S. (2013). EyeTracker plug-ins for OpenSesame [Computer software]. Utrecht, Netherlands: OpenSesame development team. Available from http://cogsci.nl/esdalmaijer/eyetracker_plugins/
  • Dalmaijer, E.S. (2013). Eye Movement (EMDR) plug-ins for OpenSesame [Computer software]. Utrecht, Netherlands: OpenSesame development team. Available from https://github.com/esdalmaijer/opensesame_eyemovement_plugins
  • Dalmaijer, E.S. (2012) Slider (VAS) plug-in for OpenSesame [Computer software]. Utrecht, Netherlands: OpenSesame development team. Available from https://github.com/esdalmaijer/OpenSesame_slider_plugin
  • Dalmaijer, E.S., & Mathôt, S. (2012). Joystick plug-in for OpenSesame [Computer software]. Utrecht, Netherlands: OpenSesame development team. Available from http://osdoc.cogsci.nl/getting-opensesame/download/ (included in basic OpenSesame installation)

Teaching materials

  • Dalmaijer, E.S. (2013). Staff Workshop: Creating Experiments Using OpenSesame. Utrecht, Netherlands: Utrecht University. [PDF]
  • Dalmaijer, E.S., Mathôt, S., Godefroid, E., De Groot, F., Van der Linden, L., & Fahrenfort, J.J. (2013). Methods in AI Research: Creating Experiments Using OpenSesame. Utrecht, Netherlands: Utrecht University.
  • Fahrenfort, J.J., & Dalmaijer, E.S. (2013). Methods in AI Research: Programming a Masking Paradigm. Utrecht, Netherlands: Utrecht University.
  • Dalmaijer, E.S., Hooge, I.T.C. (2012). Vragenlijsten per computer aanbieden [Computer-based administration of questionnaires]. Utrecht, Netherlands: Utrecht University.
  • Dalmaijer, E.S., Hooge, I.T.C. (2012). Meten van impliciete voorkeuren: de Affective Priming Task [Measuring implicit biases: the Affective Priming Task]. Utrecht, Netherlands: Utrecht University.
  • Dalmaijer, E.S., Hooge, I.T.C. (2012). Bewuste waarneming verhinderen: Common Onset Masking [Diminishing conscious perception: Common Onset Masking]. Utrecht, Netherlands: Utrecht University.

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