Visuomotor coordination in people with nearsightedness: A study on gaze and lower body movement
2022 (Engelska)Självständigt arbete på avancerad nivå (masterexamen), 20 poäng / 30 hp
Studentuppsats (Examensarbete)Alternativ titel
Visuomotorisk koordination hos personer med närsynthet : En studie om blick och rörelse i underkroppen (Svenska)
Abstract [en]
At least 2.6 billion people all over the world suffer from nearsightedness, among whom 312 million are under 19 years old. Just like other vision problems, uncorrected nearsightedness brings inconvenience to many human daily activities including walking. However, the influence of nearsightedness on gait patterns and gaze behaviours remains barely discovered. This project aimed to study the influence of nearsightedness on human visuomotor coordination in different environmental settings. An integrated system combining motion capture and eye-tracking was implemented for measuring gait and gaze simultaneously. Twelve participants were recruited to perform a protocol consisting of walking tasks in various visual and environmental conditions. Nine of the participants were eligible for data analysis. Gaze time distribution and gait cycle parameters were compared between participant groups (five with normal vision, four nearsighted), and among different walking tasks. Results revealed that comparing with the control group, the nearsighted participants made shorter and slower steps, as well as spent more time looking at the walking path. The walking path also affected the gait and gaze behaviours, with shorter step length and longer step time observed when the participants were walking uphill, while increased gaze attention was paid downhill. The practicality of combining gait analysis with eye-tracking was proved in this project, laying a foundation for future studies of visuomotor coordination.
Ort, förlag, år, upplaga, sidor
2022. , s. 66
Serie
TRITA-CBH-GRU ; 2022:296
Nyckelord [en]
Visuomotor coordination, gait analysis, gaze behaviour, nearsightedness, motion capture, eye-tracking
Nationell ämneskategori
Medicinteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-320981OAI: oai:DiVA.org:kth-320981DiVA, id: diva2:1708398
Ämne / kurs
Medicinsk teknik
Utbildningsprogram
Teknologie masterexamen - Medicinsk teknik
Handledare
Examinatorer
2022-11-062022-11-032022-11-06Bibliografiskt granskad