Multimedia-based Diagnosis of Human Memory Defects
by Gernoth Grunst, Ute Simon and Manfred Berndtgen
In addition to medical multimedia tutorials the project cluster GMD
is also developing computer based diagnostic environments for cognitive
faculties. The systems provide diagnostic tests which can be applied in
clinical examinations of various neurological distortions. Usually these
tests consist of 'paper and pencil' procedures. The computer in this case
supports the recording and evaluation of test results. On the other hand
the spectrum of test procedures is broader. Especially interactive multimedia
techniques allow the integration of very natural (non-verbal) test stimuli
and response modes. Spatial orien-tation in constructive tasks can be controlled
through visual cues.
Target group for the tests are primarily elderly people with modest
or average loss of memory. These distortions correspond with initial stages
of vascular, depressive, and forms of dementia of the Alzheimer type. The
tests determine type and degree of the loss.
Many test detecting human memory defects are based on graphics.
Besides neuropsychological standard tests ALOIS integrates tests taken
from experimental psychology. For example spatial orientation is checked
through tube figures (Shepard) with various surface textures.
The focus is on non-verbal test procedures. Besides spatial orientation
the multimedia tests check logical thinking, spatial imagination, concentration,
and image memory. These abilities decrease as a consequence of degenerative
biological processes. They cannot be compensated through experience.
These functions can more adequately be seized in interactive multimedia
tests with a direct manipulative interface (3 mouse). Presentation and
retest times can easily be varied. The results, faults, and reaction times
are recorded and automatically evaluated. More information on the SCENE
project can be found at: http://www.gmd.de/fit/projects/scene.html
Please contact:
Gernoth Grunst - GMD
Tel: +49 2241 2346
E-mail: grunst@gmd.de
