“Handtracker” is an integrated software and hardware complex for assessing and analyzing the quantitative characteristics of human perception of visual and sound stimuli. It includes a very accurate ultrasound locator, PC and data entry device. Such visual tests as color campimetry (i.e. a figure color management against a color background), a virtual segment inclination management, the “rotated clock” test, the Stroop test, the tests of the sensorimotoric reactions on the visual stimulus were implemented on the basis of “handtracker”. Such sound tests as the tests of the sensorimotoric reaction on the sound stimulus, interstimulus interval measurements, interear threshold delay gap measurement in the presence of the lateralization, keeping the audio signal frequency were also developed. Besides, there are such classical tests as the test of the emotional disadaptation, the Spilberger – Khanin test, “hospital scale of anxiety and depression” and some other tests. Standard peripheral devices such as keyboard, mouse and joystick as well as an original ultrasonic sensor called handtracker are used to communicate test subject to computer. This sensor held and displaced by the test subject generates the signal depending on his hand position and this signal transmitted to a computer port is used to control some stimulus characteristics: sound tone frequency, images form and color etc. The signal generated by locator reflects not only appropriate actions of the test subject but also unintentional hand movements such as tremor for instance which reflects the test subject ability to adequately react to the stimulus. The software implementation of the tests is developed by MA–TEC.
Handtracker with calibration device
Handling the handtracker