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Title: Changing view of eye dominance
Author: Woodhouse, Rhodri
ISNI:       0000 0004 2749 0345
Awarding Body: Cardiff University
Current Institution: Cardiff University
Date of Award: 2009
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Eye dominance can be broadly defined as the preference for one eye over the other and several distinct types of eye dominance have been identified since the existence of eye dominance was first recorded in the 16th century. Since then, eye dominance has generally been assumed to be a fixed quantity, but recent work has shown that one form of eye dominance can change with gaze direction. This finding was directly investigated in this thesis, as was the ability for other forms of eye dominance to switch between the eyes. It was found that eye dominance switching does take place and there is evidence for a hierarchy of cues which trigger changes in two types of dominance. Differences in retinal image size appear to be the cue that is most heavily favoured when determining which eye is treated as dominant. Other cues include eye position signals and differences in luminance between the eyes, the latter suggesting that eye dominance switching is not controlled solely by changes in gaze direction. The relation between eye dominance and the centre of visual direction, the egocentre, was also considered. It was found that the egocentre is unlikely to change location in a manner similar to eye dominance. The conclusion of this work sets dominance switching within the context of a mechanism designed to maximise the amount of data available for use by the visual system.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available