Gilles de Hollander

This study investigates dyscalculia by analyzing computational models of behavior and parietal cortex in adolescents, finding both domain-specific and domain-general deficits.

The paper shows that rapid changes in risk attitudes arise from Bayesian inference on noisy magnitude representations in the parietal cortex, using fMRI and computational modeling.

The paper investigates how efficient coding operates in perception and valuation stages of goal-directed behavior, finding that both stages use separate efficient codes that interact to shape behavior.

The paper investigates the neural code for value in the human orbitofrontal cortex and finds that a probabilistic, non-linear population code represents both value and its uncertainty.

This study investigates how psilocybin affects visual-contextual computations using psychophysics, fMRI, and computational modeling, finding altered perception and cortical responses.

The paper identifies distinct neurocomputational mechanisms for multisensory learning using a novel task and fMRI, showing dissociable networks for statistical learning, reinforcement learning, and outcome surprise.

This paper investigates the neural mechanisms of binocular rivalry using fMRI, finding that eye-specific response modulation occurs in V1 ocular dominance columns and that IPS and ventral pulvinar enhance connectivity to resolve visual competition.

This paper shows acute stress reduces risk-aversion by altering magnitude perception, as evidenced by behavioral and neural changes in payoff valuation.

This study shows that human parietal cortex dynamically recalibrates number representations based on context, improving behavioral accuracy through distributed range adaptation.

The paper shows probability weighting arises from cognitive noise repelled by probability boundaries, confirmed through experiments on risky choice and perception.

This study shows that parietal magnitude representations causally influence risk preferences by increasing noise in small-magnitude encoding, leading to more risk-seeking behavior.

This study investigates the spatial reference frame of visual processing in human visual cortex using fMRI and finds that visual-spatial processing is encoded in a retinotopic frame rather than a spatiotopic one.

The paper shows that individual risk aversion in financial decisions stems from noisy perception of numerical magnitudes rather than subjective valuation.

This study uses 7 T fMRI to test the tripartite model of subthalamic nucleus organization in healthy volunteers and finds no evidence for functionally distinct subregions.

The paper investigates pupil responses during perceptual multistability, identifying distinct components linked to task execution and perceptual changes.

The paper uses ultra-high resolution fMRI to study feedforward and feedback activity in human V1 ocular dominance columns across cortical depths.