Frieder Hartmann

This study investigates whether findings from precision grip research apply to unconstrained, multidigit grasping by comparing participant grasp strategies with and without constraints.

The paper shows humans can categorize novel natural shapes based on their biological origins without explicit knowledge of the underlying processes.

This study uses visual aftereffects to determine that high-level shape attributes, derived from natural shape statistics, drive perceptual distortions in human vision.

This paper presents a method to estimate contact regions between hands and objects during grasping using motion capture and hand mesh reconstruction.

The paper develops a model called ShapeComp that predicts human shape similarity judgments with high accuracy using shape features from animal silhouettes.