Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"Eye-movement control"”.
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Eye-movement control during scene viewing
Eye movements serve as a window into ongoing visual-cognitive processes and can thus be used to investigate how people perceive real-world scenes. A key issue for understanding eye-movement control during scene viewing is the roles of central and peripheral vision, which process information …
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Deficits in eye movement control in children with 22q11.2 deletion syndrome.
… them to receive additional care. As saccadic eye movement behaviours reflect the integrity of multiple brain structures, a battery of oculomotor tasks could help identify neurological deficits. This study sought to test the hypothesis that children with 22q11.2 DS would have deficits in …
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Temporal and spatial aspects of eye-movement control : from reading to scanning
Eye movements are a powerful tool to examine cognitive processes. However, in most paradigms little is known about the dynamics present in sequences of saccades and fixations. In particular, the control of fixation durations has been widely neglected in most tasks. As a notable exception, both …
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Eye Movement Control During Reading: The Selection of Where to Send the Eyes
Studies of eye movements during reading have provided much information about the moment by moment perceptual and cognitive processes that occur during reading. However, the validity of the claims made about these processes depends largely upon the correspondence of eye movement control and the …
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The effects of character predictability on eye-movement control in reading Mandarin Chinese texts
… showing that character properties can influence eye-movements. However, the studies on how character properties influence eye movements have been focused on character frequency and visual complexity. The effects of character predictability have been largely ignored. To fill this gap in the …
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Investigating *Perception and Eye Movement Control in Natural Scenes Using Gaze -Contingent Multi -Resolutional Displays
Finally, useful information for designers of GCMRDs is presented.
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Eye movement control during reading : factors and principles of computing the word center for saccade planning
… of visual stimuli. Due to the physiology of the eye, only a small number of letters around the fixation position can be extracted with high visual acuity, while the visibility of words and letters outside this so-called foveal region quickly drops with increasing eccentricity. As a consequence, …
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A developmental exploration of Chinese reading in a population of early readers: from eye movement control to textual coherence
… (1) an exploration of the processes underlying eye movement control in Chinese reading; and (2) the use of semantic similarity measures based on distributed representations of words, sentences, and paragraphs to assess the impact of supra-lexical constraints on eye-movements in beginning readers …
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System-level attention links cognition, perception and action: Evidence from language comprehension and eye movements
… can compete with representations involved in eye movement control; and b) whether this competition creates attentional conflict within the system and thus modulates the oculomotor response. The effects of two types of words, directional verbs and locational nouns, on two types of eye …
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Inhibitory Control of Saccadic Eye Movements in Reading: A Neurophysiologically Based Interaction -Competition Theory of Saccade Programming
… and the predicted nature of inhibitory control of eye movement in reading. Further directions for exploring the underlying process of eye movement control in reading are also discussed, including the parametric adjustment of saccade programming in different types of reading tasks, the …
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Word perception and eye movements in Chinese reading
… characters and words affect word perception and eye movement control during reading. In Experiment I, subjects were presented with one- or two-character words briefly at different peripheral positions, and were required to recognize the words. The results showed that the probability of correct …
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Toward an integrated model of sentence processing in reading
In experiments investigating sentence processing, eye movement measures such as fixation durations and regression proportions while reading are commonly used to draw conclusions about processing difficulties. However, these measures are the result of an interaction of multiple cognitive levels and …
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Eye movements in reading strategies : how reading strategies modulate effects of distributed processing and oculomotor control
Throughout its empirical research history eye movement research has always been aware of the differences in reading behavior induced by individual differences and task demands. This work introduces a novel comprehensive concept of reading strategy, comprising individual differences in reading style …
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The Link Between Fixation Location and Attention During Reading: Its Extent and Nature
… of attention during reading. Early theories of eye movement control during reading suggested that a very tight coupling exists between the two (Just & Carpenter, 1980); however, it has since been shown that dissociations do exist. Whether these dissociations necessarily implicate parallel …
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The "where" and "when" of eye fixations in reading
To investigate eye-movement control in reading, the present thesis examined three phenomena related to the eyes’ landing position within words, (1) the optimal viewing position (OVP), (2) the preferred viewing location (PVL), and (3) the Fixation-Duration Inverted-Optimal Viewing Position (IOVP) …
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Dynamic contrast sensitivity: methods and measurements
… at a static, 25 deg/sec, and 50 deg/sec target movement condition. The results indicate that as target velocity was increased, contrast sensitivity decreased at middle and high spatial frequencies but that contrast sensitivity was enhanced at very low spatial frequencies by target movement. …
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Identification and Progression of Oculomotor Impairments in Acute Sport-Related Concussion
… SRC is associated with measurable impairments in eye movement control and visual perception, with particular attention to the first 48 hours after injury and the transition to clinical recovery. Across a series of studies, student-athletes with diagnosed acute SRC were compared with themselves …
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The determinants of auditory distraction during reading: an eye-movement investigation.
… of continuous and discrete background sounds on eye-movements during reading in an attempt to find out what makes such sounds distracting and how they affect online reading behaviour. The present investigation started with a meta-analysis of previous findings, which revealed that background …
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Eye movements and processing of semantic information in the parafovea during reading
… of the words and the text. The reserach of eye movements in reading covers a broad range of psychological systems, ranging from low-level perceptual and motor processes to high-level cognition. Reading of skilled readers proceeds highly automatic, but is a complex phenomenon of interacting …
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The control of fixational eye movements
In normal everyday viewing, we perform large eye movements (saccades) and miniature or fixational eye movements. Most of our visual perception occurs while we are fixating. However, our eyes are perpetually in motion. Properties of these fixational eye movements, which are partly controlled by the …
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