FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2474823228> ?p ?o ?g. }

• W2474823228 abstract "Hemianopic visual field loss is blindness or reduction in one half of the visual field caused by damage to the visual cortex or visual pathways. Despite these significant impairments, there is evidence that individuals with hemianopia appear to compensate to varying degrees in everyday functional activities such as driving. Using a driving-related task based on the change blindness paradigm, this research investigated compensation in hemianopic field loss. Thirty-one cases with hemianopic and quadrantanopic visual field loss and thirty-one matched controls participated in the study. Of interest was whether individuals with hemianopia could accurately respond to targets across the blind and seeing regions of visual space. The focus here was to describe the characteristics of scanpaths used by individuals with hemianopic field loss, and it was expected that successful performance on the change blindness task would be associated with altered scanpaths, suggesting compensation. In addition, the study investigated the relationship between performance on the change blindness task and cognitive and vision tests commonly used in driving research and assessment. The general approach was to compare the characteristics of individuals with hemianopia who performed well with those who did not; and ultimately to identify the variables that best predicted performance on the change blindness task.Three key findings emerged. Firstly, it was found that although the cases as a group performed more poorly than controls overall, a subset of the hemianopic group were able to accurately identify changing targets in both their blind and seeing regions. Thus, the capacity to respond to targets in areas with no visual function suggests that this subset of cases were able to compensate well for their visual field defect on this task.Consistent with previous research, the study found that as a group, the hemianopic cases searched the scenes differently to controls. In general, the search patterns of hemianopic cases were characterised by an increased number of fixations with smaller saccade amplitudes. However, further analysis revealed different patterns of scanpaths amongst the hemianopic cases, not previously reported in the literature. Those who compensated for their field loss (fewer errors) searched the scenes differently to those who did not. Specifically, those who compensated made fewer fixations and had longer saccade amplitudes, closely matching those of the controls; however the spatial scanpaths used to reach the target were markedly different to the controls. In contrast, the cases who performed poorly on the task made more fixations with smaller saccades relative to controls, but searched the scenes using similar spatial paths, suggesting that spatial scanpath is a key mechanism underpinning compensation on this task.Performance on the change blindness task was best explained by age and selected cognitive assessments, including Trails B and the Motor Free Visual Perception Test (Visual Closure Subtest), whereas measures of visual function, including the extent of field loss, did not predict performance well. These results suggest that age and cognitive function were more predictive of the ability to compensate for visual field loss on the change blindness task than measures of visual function. This research represents the first attempt to link attentional processing with eye movements and compensation for hemianopic field loss in naturalistic driving scenes. Outcomes of this research provide new evidence describing the characteristics of scanpaths associated with successful compensatory performance in hemianopia. The findings highlight the usefulness of the change blindness task for discriminating those individuals who were able to successfully compensate. Further research is recommended to explore the utility of the driving-related change blindness task as a suitable screening assessment for visual fitness to drive with hemianopic field loss." @default.
• W2474823228 created "2016-07-22" @default.
• W2474823228 creator A5080231142 @default.
• W2474823228 date "2017-02-03" @default.
• W2474823228 modified "2023-09-27" @default.
• W2474823228 title "Change blindness as a tool for investigating compensation in hemianopia" @default.
• W2474823228 cites W1034338800 @default.
• W2474823228 cites W120552945 @default.
• W2474823228 cites W123851821 @default.
• W2474823228 cites W130515728 @default.
• W2474823228 cites W1484864026 @default.
• W2474823228 cites W1486925087 @default.
• W2474823228 cites W1490099431 @default.
• W2474823228 cites W1500973542 @default.
• W2474823228 cites W1501067615 @default.
• W2474823228 cites W1502917492 @default.
• W2474823228 cites W1511546623 @default.
• W2474823228 cites W1526712561 @default.
• W2474823228 cites W1526787185 @default.
• W2474823228 cites W1538622809 @default.
• W2474823228 cites W1540057168 @default.
• W2474823228 cites W1546167127 @default.
• W2474823228 cites W1548594398 @default.
• W2474823228 cites W1557496348 @default.
• W2474823228 cites W1574390261 @default.
• W2474823228 cites W1600153178 @default.
• W2474823228 cites W1643398388 @default.
• W2474823228 cites W1646255204 @default.
• W2474823228 cites W17113979 @default.
• W2474823228 cites W1772101126 @default.
• W2474823228 cites W1793734229 @default.
• W2474823228 cites W1830481607 @default.
• W2474823228 cites W1847168837 @default.
• W2474823228 cites W1917693398 @default.
• W2474823228 cites W1966573068 @default.
• W2474823228 cites W1968903370 @default.
• W2474823228 cites W1973182775 @default.
• W2474823228 cites W1974015135 @default.
• W2474823228 cites W1975565053 @default.
• W2474823228 cites W1976779278 @default.
• W2474823228 cites W1977725539 @default.
• W2474823228 cites W1978661185 @default.
• W2474823228 cites W1980858895 @default.
• W2474823228 cites W1981316538 @default.
• W2474823228 cites W1982730812 @default.
• W2474823228 cites W1983172165 @default.
• W2474823228 cites W1983182638 @default.
• W2474823228 cites W1983741932 @default.
• W2474823228 cites W1984996369 @default.
• W2474823228 cites W1986353824 @default.
• W2474823228 cites W1986797174 @default.
• W2474823228 cites W1987113546 @default.
• W2474823228 cites W199052984 @default.
• W2474823228 cites W1992230780 @default.
• W2474823228 cites W1997839130 @default.
• W2474823228 cites W2002227725 @default.
• W2474823228 cites W2004511312 @default.
• W2474823228 cites W2005859254 @default.
• W2474823228 cites W2007570695 @default.
• W2474823228 cites W2007905785 @default.
• W2474823228 cites W2007963261 @default.
• W2474823228 cites W2009075779 @default.
• W2474823228 cites W2009623027 @default.
• W2474823228 cites W2010705601 @default.
• W2474823228 cites W2013866848 @default.
• W2474823228 cites W2014481038 @default.
• W2474823228 cites W2017031798 @default.
• W2474823228 cites W2017658548 @default.
• W2474823228 cites W2018424770 @default.
• W2474823228 cites W2018816471 @default.
• W2474823228 cites W2019543892 @default.
• W2474823228 cites W2019921249 @default.
• W2474823228 cites W2019979290 @default.
• W2474823228 cites W2022501908 @default.
• W2474823228 cites W2023889744 @default.
• W2474823228 cites W2026353775 @default.
• W2474823228 cites W2029519451 @default.
• W2474823228 cites W2030490728 @default.
• W2474823228 cites W2030863706 @default.
• W2474823228 cites W2032872483 @default.
• W2474823228 cites W2033012340 @default.
• W2474823228 cites W2034391429 @default.
• W2474823228 cites W2034409236 @default.
• W2474823228 cites W2037729489 @default.
• W2474823228 cites W2039752037 @default.
• W2474823228 cites W2040237981 @default.
• W2474823228 cites W2040786965 @default.
• W2474823228 cites W2042607678 @default.
• W2474823228 cites W2042853753 @default.
• W2474823228 cites W204307396 @default.
• W2474823228 cites W2043913029 @default.
• W2474823228 cites W2044149396 @default.
• W2474823228 cites W2044381589 @default.
• W2474823228 cites W2045867144 @default.
• W2474823228 cites W2047479772 @default.
• W2474823228 cites W2048050362 @default.
• W2474823228 cites W2050867066 @default.
• W2474823228 cites W2052950459 @default.
• W2474823228 cites W2053149396 @default.
• W2474823228 cites W2053566542 @default.

• next