scholarly journals Spatiotemporal effects of the visual attention on detecting a target smoothly appearing in the peripheral visual field

2005 ◽  
Vol 5 (12) ◽  
pp. 85-85
Author(s):  
K. Segawa ◽  
K. Uchikawa
Keyword(s):  
Visual Field ◽  
Visual Attention ◽  
Peripheral Visual Field

scholarly journals Changes in the Spatial Distribution of Visual Attention after Early Deafness

2002 ◽  
Vol 14 (5) ◽  
pp. 687-701 ◽  
Author(s):  
Jason Proksch ◽  
Daphne Bavelier
Keyword(s):  
Visual Field ◽  
Visual Attention ◽  
Visual Information ◽  
Search Task ◽  
Peripheral Visual Field ◽  
Auditory Deprivation ◽  
Attentional Processing ◽  
Attentional Resources ◽  
Visual Skills ◽  
Visual Tasks

There is much anecdotal suggestion of improved visual skills in congenitally deaf individuals. However, this claim has only been met by mixed results from careful investigations of visual skills in deaf individuals. Psychophysical assessments of visual functions have failed, for the most part, to validate the view of enhanced visual skills after deafness. Only a few studies have shown an advantage for deaf individuals in visual tasks. Interestingly, all of these studies share the requirement that participants process visual information in their peripheral visual field under demanding conditions of attention. This work has led us to propose that congenital auditory deprivation alters the gradient of visual attention from central to peripheral field by enhancing peripheral processing. This hypothesis was tested by adapting a search task from Lavie and colleagues in which the interference from distracting information on the search task provides a measure of attentional resources. These authors have established that during an easy central search for a target, any surplus attention remaining will involuntarily process a peripheral distractor that the subject has been instructed to ignore. Attentional resources can be measured by adjusting the difficulty of the search task to the point at which no surplus resources are available for the distractor. Through modification of this paradigm, central and peripheral attentional resources were compared in deaf and hearing individuals. Deaf individuals possessed greater attentional resources in the periphery but less in the center when compared to hearing individuals. Furthermore, based on results from native hearing signers, it was shown that sign language alone could not be responsible for these changes. We conclude that auditory deprivation from birth leads to compensatory changes within the visual system that enhance attentional processing of the peripheral visual field.

scholarly journals Effects of visual attention on depth discrimination in the peripheral visual field

2010 ◽  
Vol 6 (6) ◽  
pp. 307-307
Author(s):  
K. Segawa ◽  
D. Kobayashi ◽  
K. Uchikawa
Keyword(s):  
Visual Field ◽  
Visual Attention ◽  
Peripheral Visual Field ◽  
Depth Discrimination

On the Relation between Visual Spatial Attention and Visual Field Asymmetries

1992 ◽  
Vol 44 (3) ◽  
pp. 529-555 ◽  
Author(s):  
T. A Mondor ◽  
M.P. Bryden
Keyword(s):  
Visual Field ◽  
Visual Attention ◽  
Visual Fields ◽  
Stimulus Onset ◽  
Right Visual Field ◽  
Structural Factors ◽  
Letter Identification ◽  
Functional Capabilities ◽  
Visual Spatial ◽  
The Right

In the typical visual laterality experiment, words and letters are more rapidly and accurately identified in the right visual field than in the left. However, while such studies usually control fixation, the deployment of visual attention is rarely restricted. The present studies investigated the influence of visual attention on the visual field asymmetries normally observed in single-letter identification and lexical decision tasks. Attention was controlled using a peripheral cue that provided advance knowledge of the location of the forthcoming stimulus. The time period between the onset of the cue and the onset of the stimulus (Stimulus Onset Asynchrony—SOA) was varied, such that the time available for attention to focus upon the location was controlled. At short SO As a right visual field advantage for identifying single letters and for making lexical decisions was apparent. However, at longer SOAs letters and words presented in the two visual fields were identified equally well. It is concluded that visual field advantages arise from an interaction of attentional and structural factors and that the attentional component in visual field asymmetries must be controlled in order to approximate more closely a true assessment of the relative functional capabilities of the right and left cerebral hemispheres.

scholarly journals Object-motion sensitivity loss due to motion in the peripheral visual field

1988 ◽  
Vol 26 (3) ◽  
pp. 225-228
Author(s):  
James C. Mundt
Keyword(s):  
Visual Field ◽  
Object Motion ◽  
Peripheral Visual Field ◽  
Motion Sensitivity ◽  
Sensitivity Loss

scholarly journals Evaluation of Central and Peripheral Visual Field Concordance in Glaucoma

2016 ◽  
Vol 57 (6) ◽  
pp. 2797 ◽  
Author(s):  
Jamie L. Odden ◽  
Aleksandra Mihailovic ◽  
Michael V. Boland ◽  
David S. Friedman ◽  
Sheila K. West ◽  
...  
Keyword(s):  
Visual Field ◽  
Peripheral Visual Field

scholarly journals Cortical responses to moderate- and high-speed gratings extending 60° in the peripheral visual field

2016 ◽  
Vol 16 (12) ◽  
pp. 1179
Author(s):  
Kyriaki Mikellidou ◽  
Francesca Frijia ◽  
Domenico Montanaro ◽  
Vincenzo Greco ◽  
David Burr ◽  
...  
Keyword(s):  
Visual Field ◽  
High Speed ◽  
Peripheral Visual Field ◽  
Cortical Responses

scholarly journals Sign language experience redistributes attentional resources to the inferior visual field

2019 ◽  
Author(s):  
Chloé Stoll ◽  
Matthew William Geoffrey Dye
Keyword(s):  
Visual Field ◽  
Visual Attention ◽  
Visual System ◽  
Visual Fields ◽  
The Body ◽  
Language Experience ◽  
Bayesian Hierarchical ◽  
Signed Languages ◽  
Covert Visual Attention ◽  
Deaf Signers

While a substantial body of work has suggested that deafness brings about an increased allocation of visual attention to the periphery there has been much less work on how using a signed language may also influence this attentional allocation. Signed languages are visual-gestural and produced using the body and perceived via the human visual system. Signers fixate upon the face of interlocutors and do not directly look at the hands moving in the inferior visual field. It is therefore reasonable to predict that signed languages require a redistribution of covert visual attention to the inferior visual field. Here we report a prospective and statistically powered assessment of the spatial distribution of attention to inferior and superior visual fields in signers – both deaf and hearing – in a visual search task. Using a Bayesian Hierarchical Drift Diffusion Model, we estimated decision making parameters for the superior and inferior visual field in deaf signers, hearing signers and hearing non-signers. Results indicated a greater attentional redistribution toward the inferior visual field in adult signers (both deaf and hearing) than in hearing sign-naïve adults. The effect was smaller for hearing signers than for deaf signers, suggestive of either a role for extent of exposure or greater plasticity of the visual system in the deaf. The data provide support for a process by which the demands of linguistic processing can influence the human attentional system.

scholarly journals Pedestrian Guidance Model Using Body Sway and Optical Flow in Peripheral Visual Field

2013 ◽  
Vol 67 (12) ◽  
pp. J434-J440
Author(s):  
Norifumi Watanabe ◽  
Fumihiko Mori ◽  
Takashi Omori
Keyword(s):  
Visual Field ◽  
Optical Flow ◽  
Peripheral Visual Field ◽  
Body Sway ◽  
Guidance Model

Effect of Altered Central and Peripheral Visual Field Stimulation on Correct Recognition and Visual Evoked Response

1979 ◽  
Vol 9 (2) ◽  
pp. 113-122 ◽  
Author(s):  
Richard P. Mancuso ◽  
Albert F. Lawrence ◽  
Roger W. Hintze ◽  
Carroll T. White
Keyword(s):  
Visual Field ◽  
Evoked Response ◽  
Correct Recognition ◽  
Peripheral Visual Field ◽  
Field Stimulation ◽  
Visual Evoked Response ◽  
Visual Evoked

scholarly journals Optic-flow and egocentric-direction strategies in walking: Central vs peripheral visual field

2005 ◽  
Vol 45 (25-26) ◽  
pp. 3117-3132 ◽  
Author(s):  
Kathleen A. Turano ◽  
Dylan Yu ◽  
Lei Hao ◽  
John C. Hicks
Keyword(s):  
Visual Field ◽  
Optic Flow ◽  
Peripheral Visual Field ◽  
Egocentric Direction
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