Title Analiza dinamičkih okulometrijskih značajki Title (english) Analysis of Dynamic Oculometric Features Author Filipa Bobinac Mentor Davor Petrinović (mentor)Committee member Davor Petrinović (predsjednik povjerenstva)Committee member Siniša Popović (član povjerenstva)Committee member Ana Sović Kržić (član povjerenstva)Granter University of Zagreb Defense date and country 2019-07-11, Croatia Scientific / art field, TECHNICAL SCIENCES Scientific / art field, TECHNICAL SCIENCES Abstract Analiza dinamičkih okulometrijskih značajki može upotpuniti razne psihofiziološke metode proučavanja čitavog niza ljudskih mentalnih stanja, kao što su, primjerice, različiti oblici kognitivnog i emocionalnog stresa te umora. Analiza odgovarajućih dinamičkih okulometrijskih značajki u okviru ispitivanja strategija kojima osoba uspijeva istodobno pratiti više pokretnih objekata važna je u procjeni spremnosti za obavljanje kompleksnih kognitivnih radnji koje su vrlo često prisutne u
... More visoko-stresnim zanimanjima poput kontrolora zračnog prometa. U diplomskom radu, analizirani su postojeći anonimizirani i depersonalizirani podaci grupe kandidata za kontrolore zračnog prometa tijekom selekcijskog procesa te grupe studenata, dok su obavljali vizualno kognitivne zadatake koji su se odnosili na praćenje više objekata u kontinuiranom gibanju. Vizualno kognitivni zadaci bili su slijedno organizirani u tri razine težina, a prije i nakon svake razine težine obavljao se zadatak refleksnog praćenja točke koja se pojavljivala na nasumičnim mjestima po ekranu. Usporedbom prvog i zadnjeg zadatka refleksnog praćenja točke, kod ispitanika su uočene određene razlike na dinamičkim okulometrijskim značajkama, kao što je vršna brzina sakada, koje su povezane s interakcijom umora oka nastalog zbog niza obavljanih okulomotornih zadataka i različitih razina stresa u kojima su se nalazile dvije grupe ispitanika. Kandidati za kontrolore zračnog prometa pokazali su nešto veću uspješnost od studenata prilikom vizualno kognitivnih zadataka, iako nije bilo značajnije razlike između grupa u korištenju različitih postojećih strategija za istodobno praćenje više objekata. Za obje se grupe, međutim, može primijetiti porast uspješnosti pri češćem korištenju strategije gledanja u centar mase svih objekata koje je potrebno pratiti. Zanimljivo je i to da pri povećanju težine zadatka raste vrijeme gledanja pojedinačnih praćenih objekata, što je moguća posljedica okruživanja objekata većim brojem distraktora zbog čega je oku potreban finiji pristup informaciji nego što to daje periferni vid. Less Abstract (english) The analysis of dynamic oculomotor features can utilize various psycho-physiological methods of studying a whole range of human mental states, such as, for example, different forms of cognitive and emotional stress and fatigue. The analysis of the appropriate dynamic oculomotor features within the examination of strategies that manages to simultaneously monitor multiple moving objects is important in assessing the readiness to perform complex cognitive actions that are often
... More present in highly stressful occupations such as air traffic controllers. In the graduate thesis, existing anonymised and depersonalized data of the group of candidates for air traffic controllers during the selection process and group of students were analyzed while performing visual cognitive tasks related to monitoring multiple objects in continuous motion. Visual cognitive tasks were sequentially organized into three difficulty levels, before and after each level, the reflex dot pursuit task of reflexive tracking of the point that appeared in random places on the screen was performed. By comparing the first and last reflex dot pursuit task, some differences in dynamic oculomotor features, such as saccadic peak velocity, were associated with the interaction of ocular fatigue due to the number of performed oculomotor tasks and the different levels of stress. Candidates for air traffic controllers showed a somewhat greater success than students in visual cognitive tasks, although there was no significant difference between the groups in using different existing strategies for simultaneous monitoring of multiple objects. For both groups, however, one may notice an increase in success when using the strategy of looking in the center of mass of all objects that should be monitored. It is also interesting to note that increasing the task difficulty increases the time of looking in the individual monitored objects, which is the possible consequence of surrounding the objects with a larger number of distractors, for what the eye needs more fine access to the information than peripheral vision. Less Keywords
praćenje pogleda
okulometrijske značajke
otpornost na stres
sakade
strategije praćenja objekata
Keywords (english)
eye tracking
oculomotor features
stress resiliance
saccades
multiple object tracking strategies
Language croatian URN:NBN urn:nbn:hr:168:786228 Study programme Title: Electrical Engineering and Information Technology Type of resource Text File origin Born digital Access conditions Closed access Terms of use Public note Created on 2020-01-07 16:51:31
