Hélène (QUESTE) DEVILLEZ
PhD, Cognitive Sciences
Research

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My research focuses on top-down and bottom-up processes during exploration of natural scenes or object recognition.

I approach these topics from a cognitive neuroscience perspective, to better understand mental processing subtending visual processing, recognition memory and perceptual expertise. I am also interested by any external that can modify visual processing or memory, like the effect of cannabis.

Most of my current research uses behavioral measures, eye tracking data and brain electrical activity (ERPs) as well as co-registration of eye movements and EEG activity, which offers a unique opportunity for insight into visual processing. On the one hand, EEG allows for the study of brain activity linked to specific visual events (referred to as visual evoked potentials), which can reflect visual processing with an extremely high temporal resolution. On the other hand, eye tracking allows us to know exactly where observers are looking and for how long.

Key words

- Eye movements

- EEG (electroencephalography)

- Attention

- Visual perception

- Natural scenes

- Top-down and bottom-up interactions

- Visual saliency

- Visual object recognition

- Perceptual expertise

- Memory

Skills

- Co-registration of eye-movements and EEG

- Experimental Design: PsychToolbox

- Online data collection: Tatool, MTurk

- Data analysis: EEGlab, Fieldtrip

- Statistical analysis: Statistica, R

- Statistical modeling

- Program writing: Matlab, Java, C++

Publications
Devillez, H., Mollison, M. V., Hagen, S., Tanaka, J. W., Scott, L. S., & Curran, T. (2019). Color and spatial frequency differentially impact early stages of perceptual expertise training. Neuropsychologia, 122, 62-75        Download PDF

Devillez, H., Guérin-Dugué, A. and Guyader, N. (2017) How a distractor influences fixations during the exploration of natural scenes. Journal Of Eye Movement Research 10(2):2, 1-13        Download PDF

Devillez, H., Guyader, N. and Guérin-Dugué, A. (2015), P3 during visual search task when exploring natural scenes: an EFRP study. Journal of Vision 15(13), 20-20        Download PDF

Devillez, H., Guérin-Dugué, A., & Guyader, N. (2015). How task difficulty influences eye movements when exploring natural scene images. Signal Processing Conference (EUSIPCO), 2015 23rd European (pp. 1536-1540). IEEE.        Download PDF

Posters
Devillez, H. , Yorkwilliams, S., Hutchison, K.E., Bidwell, L.C., Curran, T. (2018), Acute effects of THC vs. CBD on recognition memory. CORE conference: Perspectives in cannabis research and education, Boulder, CO, USA, November 4        Download PDF

Devillez, H. , Rohrlich, J., Sheinberg, D.L., O’Reilly; R.C. & Curran, T. (2017), Exposure duration influences holistic vs. part-based learning in visual object recognition. 40th European Conf. on Visual Perception (EVCP 2017), Berlin, Germany, August 27-31        Download PDF

Devillez, H. , O’Reilly, R.C. and Curran, T. (2016), Eye-Fixation Related Potentials evidence for incongruent object processing during scene exploration. 39th European Conf. on Visual Perception (ECVP 2016), Barcelona, Spain, August 28- September 1st        Download PDF

Devillez, H. , O’Reilly, R.C. and Curran, T. (2016), Co-registration of eye movements and EEG to study semantic congruency during scene perception. 16th Annual Meeting Vision Sciences Society (VSS 2016), St. Pete Beach, FL, May 13-18        Download PDF

Devillez, H. , Kristensen, E., Guyader, N., Rivet, B. and Guérin-Dugué, A. (2015), Time course of the P300 Eye-Fixation Related Potential during the visual search for a target embedded in natural scenes. 15th Annual Meeting Vision Sciences Society (VSS 2015), St. Pete Beach, FL, May 15-20        Download PDF

Devillez, H. , Kristensen, E., Guyader, N., Rivet, B. and Guérin-Dugué, A. (2015), The P300 potential for fixations onto target object when exploring natural scenes during a visual task after denoising overlapped EFRP. 7th Int. IEEE/EMBS Conf. on Neural Engineering, Montpellier, France, April 22-24        Download PDF

Queste, H., Guyader, N. and Guérin-Dugué, A. (2013), Eye-Fixation Related Potentials on Regions of Interest when viewing natural scene. 36th European Conf. on Visual Perception (ECVP 2013), Bremen, Germany, August 25-29        Download PDF