Positive Technology Journal

From Emerging Technology Trends

German researchers are developing the concept of virtual humans to replace these answering machines. These virtual humans could be used as ticket sellers or as teachers

These virtual humans, which will interact with you through speech and gestures could be used as ticket sellers, but also as teachers for students taking e-learning courses.

Several research institutions are working on this concept including the Fraunhofer Institute for Computer Graphics (IGD).

As an example, below is a picture of several virtual humans on stage during a trade show (Credit: Fraunhofer IGD). This illustration was extracted from Der virtuelle Mensch (in German).

As you can guess, it will be difficult to achieve a convincing result.

Below you can see that the Fraunhofer researchers have paid great attention to realism with the hairstyles of two virtual humans (Credit: Fraunhofer IGD). Here is a link to a larger version.

The Virtual Human web page gives additional details.

And what virtual humans will be able to do?

But when will these friendly servants replace stubborn machines? The Fraunhofer IGD doesn't give any answers, even if some prototypes have been demonstrated during trade shows.

Finally, if you want to know more about this project, you can read this paper from 2004 called "Virtual Human: Storytelling & Computer Graphics for a Virtual Human Platform" (PDF format, 10 pages, 797 KB).

Sources: Fraunhofer-Gesellschaft, March 2006; and various web sites

Robust classification of EEG signal for brain-computer interface.

IEEE Trans Neural Syst Rehabil Eng. 2006 Mar;14(1):24-9

Authors: Thulasidas M, Guan C, Wu J

We report the implementation of a text input application (speller) based on the P300 event related potential. We obtain high accuracies by using an SVM classifier and a novel feature. These techniques enable us to maintain fast performance without sacrificing the accuracy, thus making the speller usable in an online mode. In order to further improve the usability, we perform various studies on the data with a view to minimizing the training time required. We present data collected from nine healthy subjects, along with the high accuracies (of the order of 95% or more) measured online. We show that the training time can be further reduced by a factor of two from its current value of about 20 min. High accuracy, fast learning, and online performance make this P300 speller a potential communication tool for severely disabled individuals, who have lost all other means of communication and are otherwise cut off from the world, provided their disability does not interfere with the performance of the speller.

Attention rehabilitation following stroke and traumatic brain injury. A review.

Eura Medicophys. 2006 Mar;42(1):59-67

Authors: Michel JA, Mateer CA

Attentional capacities, which are frequently impaired following brain injury, have also been found to be amenable to rehabilitation. This review discusses various approaches to attention rehabilitation in adult clients following stroke and traumatic brain injury. Attention process training has been accepted by many as a practice standard in postacute clients, however, its ability to generalize to new situations and to functional capacities is unclear. There is evidence for the use of psychostimulant medication, which may be most helpful when prescribed in combination with attention training. Biofeedback is a new avenue for intervention and is beginning to show some promising RESULTS: Rather than train underlying processes, another approach which shows promising results in a few small studies is training clients on specific functional skills, such as driving or vocational duties. Finally, modifications to the environment, implementation of strategies, provision of emotional support, and introduction of external supports/aids are important parts of a rehabilitation program, especially as the client returns to their home environment.

[Mindware Forum]

The initial project demonstrates how a paralyzed patient could communicate by using a mental typewriter alone - without touching the keyboard. In the case of serious accident or illness, a patient’s limbs can be paralyzed, severely restricting communication with the outside world.