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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Rankos ir žiūros taško judesių koordinacija panaudojant labirinto testą / Coordination of eye-hand movements using labyrinth path

Kulvelis, Saulius 04 August 2011 (has links)
Žmogaus natūralus elgesys puikiai parodo sinchronizuotus akių ir rankos judesius. Akių-rankos koordinacija naudinga tiriant alternatyvius kompensacinius įtaisus, kurie gelbsti žmogaus ir kompiuterio sąveikai, kai reabilituojami žmonės su negale. Tiriamieji buvo paprašyti pravesti ranka kursorių labirinto trajektorija (pakankamai dideliu greičiu). Eksperimento metu akių judesiai buvo fiksuojami "EyeGaze" sistema sukurta "LC technologies LTd.". Rezultatuose nustatytos akių-rankos judesių koordinacijos strategijos: GJ - šuolinė ir GMS - sekimo strategija. / Human behavior in manual control coordinated by vision illustrates perfect synchronization between the gaze and position of the target, which is controlled by hand. Investigation of eye-hand coordination is useful for alternative control of computer cursor and for an assessment and rehabilitation of a sensorimotor system of patients. Subjects were asked to move the target along the labyrinth’s path quickly enough. During all experiments, movements of both eyes were recorded with eye tracker “EyeGaze System” produced by “LC Technologies Ltd.” Gaze tracking instrumentation was setup so, that to 1 deg eye angle corresponds to 46 pixels on computer screen. The results showed two eye-hand coordination strategies Gaze Jumps (GJ) and Gaze Moves Smoothly (GMS) during guiding self-moved target along Labyrinth path can be defined. During GJ strategy gaze elicit eye jumps in the direction of the future path. Average amplitude of the jumps is around 1.5 deg and frequency is in the 2-3 Hz range. During GMS strategy gaze is concentrated on the self-moved target and leads it only by small average distance (0.1-0.2 deg).

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