To obtain a quantitative measure of the neuro-psycomotional
condition of a person and then detect his/her wellness condition, it is
necessary a set of parameters which are reaction time, speed, strength and
tremor. Processing these parameter with fuzzy logic it is possible to
obtain an indication about the wellness condition of a person, healthy or
affected by a particular pathology as Parkinson Disease, dementia,
The system is of small
dimension, with easily grasping both with the right and left hand, low
weight and easily portable. These characteristics, combined with a
software and a simple mechanics, make the test operation completely under
the user’s own management.
The first type of test (Button
push) consists on pressing the device’s button, using the forefinger,
after a visual-sound stimulus; will be thus acquired four kinetic-dynamic
parameters, reaction time, speed, strength, and tremor. The test is
articulated on two protocols:
- Fast protocol – the user, when
receives the visual-sound stimulus, pushes quickly the button and
releases it when the target has been reached.
- Virtual protocol – the user must
do the same movement, but now he has to follow the schematisation of the
A cycle of experimental tests done
with the system on healthy people takes results that confirm experiments
by neurologists on the subject. Two protocols of execution:
- Fast reading –the user has to
read a word, which appears in random way, just when it appears on the
display and after having received a sound stimulus.
- Delayed reading – the person
must read the word visualized on the display not when it is displayed,
but later; a sound notifies the time to start the reading.
The data collected are used to develop a
classification model based on fuzzy logic. The values acquired by the
device have been considered as input parameter.