Positive Technology Journal

via WMMNA

Jefferson Y. Han and coll. have developed multi-touch sensing technologies based on a technique called FTIR (frustrated total internal reflection), originally developed for fingerprint image acquisition. It acquires true touch information at high spatial and temporal resolutions, and is scalable to very large installations.

Multi-touch sensing allows a user to interact with a system with more than one finger at a time, as in chording and bi-manual operations. Such sensing devices are also able to accommodate multiple users simultaneously, which is especially useful for larger interaction scenarios such as interactive walls and tabletops.

See MPEG-1 demo and visit the project's web site

CALL FOR PAPERS
MOBILEHCI 2006

The 8th International Conference on Human-Computer Interaction with Mobile Devices and Services

Date: 12-15 September 2006
Location: Espoo, Finland
Website: www.mobilehci.org

Deadlines: *Papers, Workshops and Tutorials: 1 March 2006 *Short Papers, Posters, Demos, Panels, Industry Cases, Doctoral Consortium: 7 May 2006

Purpose

The 8th conference in the MOBILEHCI series provides a forum for academics and practitioners to discuss the challenges, potential solutions and innovations towards effective interaction with mobile systems and services. It covers the analysis, design, evaluation and application of human-computer interaction techniques and approaches for all mobile computing devices, software and services. Suggested topics include but are not limited to:

*Audio and speech interaction
*Context-dependent systems
*Designing Web sites for mobile devices
*Ethographical and field studies with mobile technology
*Evaluation of mobile devices and services
*Group interaction and mobility
*Intelligent environments
*Location-aware interaction
*Methods to evaluate mobile usability
*Model-based design of interactive mobile systems
*Mobile phenomena
*Mobility and work environments
*Multimodal interaction
*Novel user interfaces and interaction techniques
*Perception and modelling of the environment
*Safety issues (e.g., in-car user interfaces, payments)
*Specific classes of handheld devices (PDA, Pocket PC, WAP phone,...)
*3D graphics on mobile devices
*3G/4G devices and services
*Usability of mobile devices and services
*Visualization techniques for the mobile context
*Interdisciplinary perspectives towards mobile interaction (e.g. Social aspects)
*User centered design tools and methods for mobile systems

Increasing individual upper alpha power by neurofeedback improves cognitive performance in human subjects.

Appl Psychophysiol Biofeedback. 2005 Mar;30(1):1-10

Authors: Hanslmayr S, Sauseng P, Doppelmayr M, Schabus M, Klimesch W

The hypothesis was tested of whether neurofeedback training (NFT)--applied in order to increase upper alpha but decrease theta power--is capable of increasing cognitive performance. A mental rotation task was performed before and after upper alpha and theta NFT. Only those subjects who were able to increase their upper alpha power (responders) performed better on mental rotations after NFT. Training success (extent of NFT-induced increase in upper alpha power) was positively correlated with the improvement in cognitive performance. Furthermore, the EEG of NFT responders showed a significant increase in reference upper alpha power (i.e. in a time interval preceding mental rotation). This is in line with studies showing that increased upper alpha power in a prestimulus (reference) interval is related to good cognitive performance.

Can neurofeedback training enhance performance? An evaluation of the evidence with implications for future research.

Appl Psychophysiol Biofeedback. 2005 Dec;30(4):347-64

Authors: Vernon DJ

There have been many claims regarding the possibilities of performance enhancement training. The aim of such training is for an individual to complete a specific function or task with fewer errors and greater efficiency, resulting in a more positive outcome. The present review examined evidence from neurofeedback training studies to enhance performance in a particular area. Previous research has documented associations between specific cortical states and optimum levels of performance in a range of tasks. This information provides a plausible rationale for the use of neurofeedback to train individuals to enhance their performance. An examination of the literature revealed that neurofeedback training has been utilised to enhance performance from three main areas; sport, cognitive and artistic performance. The review examined evidence from neurofeedback training studies within each of these three areas. Some suggestive findings have been reported with regard to the use of neurofeedback training to enhance performance. However, due to a range of methodological limitations and a general failure to elicit unambiguous changes in baseline EEG activity, a clear association between neurofeedback training and enhanced performance has yet to be established. Throughout, the review highlights a number of recommendations to aid and stimulate future research.