Jolande Fooken

@ookenfooken.bsky.social

Postdoctoral fellow at TU Darmstadt. Lived a previous life in Vancouver and Kingston, Canada 🍁 Vision Science | Eye Movements | Motor Control | Eye-hand coordination

New preprint! 🎉 How can we measure how the nervous system knows, moment to moment, where the body is as it moves? We introduce a continuous tracking paradigm to measure the hidden dynamics of proprioception—revealing it is faster and more precise than vision during movement. tinyurl.com/yf297k53

Tracking the hidden dynamics of proprioception

Every movement unfolds with a simple question: Where is my body? The nervous system answers through proprioception - the sense of limb position (static position sense) and movement (dynamic propriocep...

tinyurl.com

New preprint! What the eyes do when searching for a visual target reveals the psychological similarity between objects, just like more classic (but much longer & tedious) tasks like triplet odd-one-out and direct comparison. www.biorxiv.org/cgi/content/... #BRAINFLOW @upcite.bsky.social @cnrs.fr

Eye movements reveal representational geometry

Mental representations are the explanatory construct of the cognitive sciences, but there is no widely accepted characterization of how they cause behavior. Visual representational geometry can be quantified by similarity scores, but almost all methods require an explicit judgment. To examine how representations cause behavior by varying task demands, observers must perform different tasks while continuously reporting similarity, leading to dual-task interference. This study develops scanpaths as an implicit similarity measure, and uses representational similarity analysis to validate it. Observers searched for a target; fixations on distractors may reveal similarity. Similarity was also quantified by an odd-one-out task in the same participants, and ratings from different participants (Jiang et al. 2022). Representational geometries between tasks correlated. A generative model predicted first fixations in novel data. This double validation of the scanpath method opens the door to examining the causality of representations by determining if and how they vary with task demands. ### Competing Interest Statement The authors have declared no competing interest.

biorxiv.org

Why is touch perceived as weaker during movement? In our new preprint 📝, we examine tactile suppression during reaching. Using optimal control theory, we show that tactile suppression reflects dynamic, uncertainty-dependent integration of forward model predictions and sensory feedback.

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Reasonable Artificial Intelligence und The Adaptive Mind: Die TU Darmstadt wird im Rahmen der Exzellenzstrategie des Bundes und der Länder mit gleich zwei geförderten Clusterprojekten ausgezeichnet. Ein Meilenstein für unsere Universität! www.tu-darmstadt.de/universitaet...

Zwei Exzellenzcluster für die TU Darmstadt

Großer Erfolg für die Technische Universität Darmstadt: Zwei ihrer Forschungsprojekte werden künftig als Exzellenzcluster gefördert. Die Exzellenzkommission im Wettbewerb der prestigeträchtigen Exzell...

tu-darmstadt.de

Congratulations to Matthias Schultheis for defending his PhD thesis 'Inverse reinforcement learning for human decision-making under uncertainty' with distinction. Significant contributions to understanding bounded actors with inverse POMDPs for partial observabilities and non-stationary behavior

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