The term ‘synergy’ – from the Greek synergia – means ‘working together’. The concept of
multiple elements working together towards a common goal has been extensively used in …

In this paper, I focus on the role of active touch in three aspects of shape perception and
discrimination studies. First an overview is given of curvature discrimination experiments. The …

Fueled by novel applications, interest in haptic perception is growing. This paper provides
an overview of the state of the art of a number of important aspects of haptic perception. By …

In this paper, results of a free sorting task of 124 different material samples are analysed
using multidimensional scaling. The relevant number of dimensions for haptic perception of …

Subjects adjusted a local gauge figure such as to perceptually “fit” the apparent surfaces of
objects depicted in photographs. We obtained a few hundred data points per session, …

For the perception of the hardness of compliant materials, several cues are available. In this
paper, the relative roles of force/displacement and surface deformation cues are investigated…

In this study, we are interested in the following two questions: (1) how does perceived
roughness correlate with physical roughness, and (2) how do visually and haptically perceived …

Photographs of scenes do not determine scenes in the sense that infinitely many different
scenes could have given rise to any given photograph. In psychophysical experiments, …

There are some indications that haptic space like visual space is not Euclidean (eg Blumenfeld,
1937 Acta Psychologica2 125–174). In a series of experiments, we investigated the …

The roles of visual and haptic experience in different aspects of haptic processing of objects
in peripersonal space are examined. In three trials, early-blind, late-blind, and blindfolded-…