Delays in admittance-controlled haptic devices make simulated masses feel heavier

In an admittance-controlled haptic device, input forces are used to calculate the movement of the device. Although developers try to minimize delays, there will always be delays between the applied force and the corresponding movement in such systems, which might affect what the user of the device perceives. In this experiment we tested whether...

The Design of Smart Product-Service Systems (PSSs): An Exploration of Design Characteristics

Smart Product-Service Systems (Smart PSSs) integrate smart products and e-services into single solutions. Smart products make use of information and communication technology (ICT) to collect, process and produce information, while e-services are web portals, apps and means alike, which facilitate the communication between service providers and...

Haptic perception of force magnitude and its relation to postural arm dynamics in 3D

In a previous study, we found the perception of force magnitude to be anisotropic in the horizontal plane. In the current study, we investigated this anisotropy in three dimensional space. In addition, we tested our previous hypothesis that the perceptual anisotropy was directly related to anisotropies in arm dynamics. In experiment 1, static...

Repareren kun je leren

Spullen repareren en hergebruiken is anno 2014 absoluut geen schande, wel integendeel. Nest ging op de lappen met oplappers die reden hebben om te feesten; Interview door Leen Greve

Using social distictions in taste for analysing design styles across product categories

This research uncovers seven cross-category design styles and demonstrates how people’s preferences for these design styles are based on social distinctions. Knowledge of these cross-category design styles and the research approach might assist designers when faced with the challenge of how to address different market segments, and how to play...

The Influence of Product Exposure on Trendiness and Aesthetic Appraisal

Designers use product attributes (e.g., trendiness) to design aesthetically appealing products. The relationships of physical properties (e.g., shape) of product designs with product attributes and aesthetic appraisal are often considered to be generalizable over product categories and markets. However, in line with an interactionist view, we...

Integration of Sensory Force Feedback Is Disturbed in CRPS-Related Dystonia

Complex regional pain syndrome (CRPS) is characterized by pain and disturbed blood flow, temperature regulation and motor control. Approximately 25% of cases develop fixed dystonia. The origin of this movement disorder is poorly understood, although recent insights suggest involvement of disturbed force feedback. Assessment of sensorimotor...

Consument denkt: Mooi is goed

Interview met Ruth Mugge van de TU Delft. Zij onderzoekt de perceptie die mensen hebben van een product op grond van het uiterlijk daarvan.

Consumer response to aesthetic mass customization

The effect of a business-like personality on the perceived performance quality of products

People use the appearance of products as a cue for evaluating functional attributes at purchase. This research provides an understanding of this form-function interdependency by investigating the effect of a business-like personality in product appearance on the perceived performance quality of the product. A business-like personality is...

Fixed Dystonia in Complex Regional Pain Syndrome: A Descriptive and Computational Modeling Approach

Background: Complex regional pain syndrome (CRPS) may occur after trauma, usually to one limb, and is characterized by pain and disturbed blood flow, temperature regulation and motor control. Approximately 25% of cases develop fixed dystonia. Involvement of dysfunctional GABAergic interneurons has been suggested, however the mechanisms that...

A rigorous model of reflex function indicates that position and force feedback are flexibly tuned to position and force tasks

This study aims to quantify the separate contributions of muscle force feedback, muscle spindle activity and co-contraction to the performance of voluntary tasks (‘‘reduce the influence of perturbations on maintained force or position’’). Most human motion control studies either isolate only one contributor, or assume that relevant reflexive...

Sensory Weighting of Force and Position Feedback in Human Motor Control Tasks

In daily life humans integrate force and position feedback from mechanoreceptors, proprioception, and vision. With handling relatively soft, elastic objects, force and position are related and can be integrated to improve the accuracy of an estimate of either one. Sensory weighting between different sensory systems (e.g., vision and...