scholarly journals Visual field loss, eye movements and visual search

2010 ◽  
Vol 9 (8) ◽  
pp. 1210-1210
Author(s):  
L. McIlreavy ◽  
J. Fiser ◽  
P. Bex
Keyword(s):  
Visual Search ◽  
Eye Movements ◽  
Visual Field ◽  
Visual Field Loss

scholarly journals Effects of Peripheral Visual Field Loss on Eye Movements During Visual Search

2012 ◽  
Vol 3 ◽  
Author(s):  
Emily Wiecek ◽  
Louis R. Pasquale ◽  
Jozsef Fiser ◽  
Steven Dakin ◽  
Peter J. Bex
Keyword(s):  
Visual Search ◽  
Eye Movements ◽  
Visual Field ◽  
Visual Field Loss ◽  
Peripheral Visual Field

Contextual and social cues may dominate natural visual search

2017 ◽  
Vol 40 ◽  
Author(s):  
Linda Henriksson ◽  
Riitta Hari
Keyword(s):  
Visual Search ◽  
Eye Movements ◽  
Visual Field ◽  
Search Behavior ◽  
Social Cues ◽  
Social Stimuli ◽  
The Gaze ◽  
Search Tasks ◽  
Task Irrelevant ◽  
And Task

AbstractA framework where only the size of the functional visual field of fixations can vary is hardly able to explain natural visual-search behavior. In real-world search tasks, context guides eye movements, and task-irrelevant social stimuli may capture the gaze.

scholarly journals Driving with homonymous visual field loss: Does visual search performance predict hazard detection?

2015 ◽  
Vol 78 (2) ◽  
pp. 85-95 ◽  
Author(s):  
Matthew Smith ◽  
Callum D Mole ◽  
Georgios K Kountouriotis ◽  
Catharine Chisholm ◽  
Bipin Bhakta ◽  
...  
Keyword(s):  
Visual Search ◽  
Visual Field ◽  
Visual Field Loss ◽  
Search Performance ◽  
Hazard Detection

scholarly journals Use of NeuroEyeCoach™ to Improve Eye Movement Efficacy in Patients with Homonymous Visual Field Loss

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Arash Sahraie ◽  
Nicola Smania ◽  
Josef Zihl
Keyword(s):  
Visual Search ◽  
Visual Field ◽  
Eye Movement ◽  
Group Performance ◽  
Visual Field Loss ◽  
Control Group ◽  
Movement Training ◽  
Visual Field Deficits ◽  
Before And After ◽  
Healthy Control

Visual field deficits are common in patients with damaged retinogeniculostriate pathways. The patient’s eye movements are often affected leading to inefficient visual search. Systematic eye movement training also called compensatory therapy is needed to allow patients to develop effective coping strategies. There is a lack of evidence-based, clinical gold-standard registered medical device accessible to patients at home or in clinical settings and NeuroEyeCoach (NEC) is developed to address this need. In three experiments, we report on performance of patients on NEC compared to the data obtained previously on the earlier versions of the search task (n=32); we assessed whether the self-administered computerised tasks can be used to monitor the progress (n=24) and compared the findings in a subgroup of patients to a healthy control group. Performance on cancellation tasks, simple visual search, and self-reported responses on activities of daily living was compared, before and after training. Patients performed similarly well on NEC as on previous versions of the therapy; the inbuilt functionality for pre- and postevaluation functions was sensitive to allowing assessment of improvements; and improvements in patients were significantly greater than those in a group of healthy adults. In conclusion, NeuroEyeCoach can be used as an effective rehabilitation tool to develop compensatory strategies in patients with visual field deficits after brain injury.

scholarly journals Biomechanical adaptation to post-stroke visual field loss: a systematic review

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Adel Elfeky ◽  
Kristiaan D’Août ◽  
Rebecca Lawson ◽  
Lauren R. Hepworth ◽  
Nicholas D. A. Thomas ◽  
...  
Keyword(s):  
Systematic Review ◽  
Eye Movements ◽  
Visual Field ◽  
Body Movement ◽  
Visual Field Loss ◽  
Healthy Adults ◽  
Visual Exploration ◽  
Post Stroke ◽  
Mesh Terms ◽  
Movement Parameters

Abstract Background Homonymous visual field defects represent the most frequent type of visual field loss after stroke, affecting nearly 30% of individuals with unilateral post-chiasmal brain damage. This review aimed to gather the available evidence on the biomechanical changes to visual field loss following stroke. Methods A systematic review was conducted inclusive of randomised controlled trials, cohort studies, before-after studies and case-controlled studies. Studies including adult and paediatric participants that investigated eye, head, or body movements in post-stroke visual field loss during visual exploration tasks were included. Search terms included a range of MESH terms as well as alternative terms relating to stroke, visual field loss, hemianopia, visual functions and scanning behaviour. Articles were selected by two authors independently. Data were extracted by one author and verified by a second. All included articles were assessed for risk of bias using checklists appropriate to the study design. Results Thirty-six articles (1123 participants) were included in the overall review (Kappa 0.863) and categorised into simulated or true visual field loss (typically hemianopia). Seven studies identified the biomechanical alterations to simulated hemianopia compared to normal performance. Twenty-nine studies detailed eye, head and body movement parameters in true hemianopia. Hemianopic participants and healthy adults with simulated hemianopia differed significantly from controls in various fixation and saccade parameters as indicated by increased number and duration of fixations, number and duration of saccades and scan path length with shorter mean saccadic amplitude. Under simulated hemianopia, participants were consistently biased towards the sighted visual field while gaze behaviour in true hemianopia was biased in the direction of the blind hemifield. Conclusions There is considerable evidence on the altered eye movements that occur in true hemianopia and in healthy adults with simulated hemianopia. Successful performance in naturalistic tasks of visual exploration appears to be related to compensatory mechanisms of visual exploratory behaviour, namely, an increase in the amplitude and peak velocity of saccades, widening horizontally the distribution of eye movements, and a shift of the overall distribution of saccades into the blind field. This review highlights the lack of studies reporting head and other body movement parameters in hemianopia. Further studies with robust methodology and large sample sizes involving participants with post-stroke visual field loss are needed. Systematic review registration PROSPERO CRD42020194403

scholarly journals Using eye movements to detect visual field loss: a pragmatic assessment using simulated scotoma

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Daniel S. Asfaw ◽  
Pete R. Jones ◽  
Laura A. Edwards ◽  
Nicholas D. Smith ◽  
David P. Crabb
Keyword(s):  
Eye Movements ◽  
Visual Field ◽  
Visual Field Loss ◽  
Pragmatic Assessment

Spatial correlation between localized decreases in exploratory visual search performance and areas of glaucomatous visual field loss

2018 ◽  
Vol 257 (1) ◽  
pp. 153-160 ◽  
Author(s):  
Cassia Senger ◽  
Marcelo Jordão Lopes da Silva ◽  
Carlos Gustavo De Moraes ◽  
André Messias ◽  
Jayter Silva Paula
Keyword(s):  
Visual Search ◽  
Visual Field ◽  
Spatial Correlation ◽  
Visual Field Loss ◽  
Search Performance
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