Dr. Marcia Bécu (Postdoc)
Aging in Vision and Action Lab
CNRS – INSERM – University Pierre&Marie Curie
17, rue Moreau F-75012 Paris, France
Phone: +33 (0)1 53 46 26 54
My PhD thesis was in the framework of the Silversight project “Healthy Visual Aging, Action and Autonomy” (ANR Research Chair) at the Vision Institute.
My main interests focus on eye guidance in ecological-like conditions and on the impact of healthy visual aging on spatial cognition, which offers a representative case of high-level brain function prominently mediated by active vision.
More specifically, healthy aging is associated with natural degradation of low-level visual functions (Owsley, 2011) as well as higher-level spatial cognitive functions (Harris & Wolbers, 2012). For instance, older people have difficulty to properly use visual information to perform complex navigation tasks (Mahmood, Adamo, Briceno, & Moffat, 2009). Throughout my work, I am trying to understand how vision is used when navigating in ecological-like environments and how age-related visual as well as cognitive dysfunctions impact the ability to navigate properly.
I am using both a motion capture system as well as an eye-tracking device during my experiments to study human behavior during exploration, navigation and spatial reorientation.
Short bio: I hold a Master degree in neuropsychology and neuroscience from the University of Grenoble (France). During my studies, I was trained in cognitive and experimental psychology.
More specifically, I investigated oculomotor behavior in order to understand neural mechanisms underlying depression and bipolar disorder. I joined the Aging in Vision and Action group in July 2014.
Keywords: Healthy aging, visual aging, spatial cognition, motion capture, eye-tracking
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Show All - Journals - Peer-reviewed conference proceedings - Others
- Modulation of spatial cue processing across the lifespan: a geometric polarization of space restores allocentric navigation strategies in children and older adults. bioRxiv. (2020)
- Age-related preference for geometric spatial cues during real-world navigation. Nature Human Behaviour, 4(1):88-99. (2020)
- Age-related differences in the neural bases of landmark versus geometric spatial cue processing. In Colloque International: Vieillissement, tours, contours et perspectives, Tours, France. (2019)
- Distinct cerebral structures are involved in landmark vs. geometry based spatial navigation. In Society for Neuroscience (SfN), Chicago, USA. (2019)
- Cognitive-motor interference in older adults while navigating in an ecological environment. In International Society for Posture and Gait Research World Congress (ISPGR), Seville. (2019)
- Healthy and pathological visual aging in a French follow-up cohort study. In ARVO Annual Meeting 2019, Vancouver, Canada. (2019)
- Impact of healthy aging on spatial cognition. Spatial navigation and gaze dynamics in ecological conditions. Ph.D. Thesis, Sorbonne University, Paris. (2018)
- Age-related preference for geometric cues: when aging does not impair allocentric strategies. In iSCAN 2018, Magdeburg, Germany. (2018)
- Age-related preference for geometric cues during real-world navigation: behavioral and neuroimaging correlates. In Interdisciplinary Navigation Symposium (iNav), Mont-Tremblant, Canada. (2018)
- Age-related preference for geometric cues during real-world navigation. In Forum of Neuroscience (FENS), Berlin, Germany, pages 345. (2018)
- Age-related preference for geometric cues during real-world navigation: behavioral and neuroimaging correlates. In Spatial Cognition 2018, Tübingen, Germany. (2018)
- Unsupervised detection of microsaccades in high-noise regime. Journal of Vision, 18(6):1-16. (2018)
- Age-related changes in spatial learning of a real environment and gray-matter integrety. In Neuroscience Workshop Saclay: Neural Circuit and Behavior (* shared st authorship). (2017)
- Age-related changes in gaze dynamics during real-world navigation. In Poster session presented at European Conference on Eye Movements, Wuppertal, Germany. (2017)
- Age-related changes in gaze dynamics during real-world navigation. In Journal of Vision, vol. 17(10), pages 540. (2017)
- Characterizing rTMS-induced neuromodulation of the DFPLC in resistant bipolar patients using saccadic inhibition performance: a pilot study. In European Summer School on Eye Movement, Freiburg, Germany. (2014)
- Aging and cortical excitability. In French Society for Neuroscience Meeting, Lyon, France. (2013)
- State dependency and cortical excitability. In French Society for Neuroscience Meeting, Lyon, France. (2013)
- CortExTool: a signal processing toolbox for cortical excitability by TMS. In French Society for Neuroscience Meeting, Lyon, France. (2013)
- Aging and Mental-Cognitive State modulate Cortical Excitability (TMS). In Journée de la Recherche Médicale, Grenoble, France. (2013)