Seeing Signs: On the appearance of manual movements in gestures

This dissertation presents the results of a series of studies on the appearance of manual movements in gestures. The main goal of this research is to increase our understanding of how humans perceive signs and other gestures. Generated insights from human perception may aid the development of technology for recognizing gestures and sign language...

Orientation to gravity: oculomotor and perceptual response in man

In our daily lives, the omnipresent force of gravity helps the perceptual system to integrate egocentric information arising in the eyes, head, and body into an exocentric frame of reference. With the otolith organs in our inner ear, we possess a sensory system that is specialized to detect gravity. The situations considered in this thesis make...

Determinants of temporal pattern perception

Rhythms differ in how well they can be remembered and reproduced. The cen-tral thesis of this dissertation is that people use a mental time scale to structure rhythms. A mental time scale can be thought of as a sequence of beats separated by equal time intervals. It is used to break a rhythm down into smaller parts which can be coded further. In...

Visual Perception of Spatial Order

Timing in temporal tracking