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 17 of 17 for “"Hemispheric differences"”.
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Hemispheric Differences in Semantic Priming Examined Across Handedness Groups
The present study investigates hemispheric differences in semantic priming across handedness groups. A lexical decision task was administered to 87 individuals, classified into handedness groups: consistent right-handers; consistent left-handers; and inconsistent-handers. Participants were …
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Aging and Cognitive Control: Hemispheric Differences and White Matter Integrity
"The ability to flexibly control cognitive processed declines with aging. Age-related changes in cognitive control have been associated with white matter as well as gray matter decline. Specifically, it has been established that anterior regions of the corpus callosum (aCC) decline with advanced …
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Hemispheric differences in orthographic and semantic processing as revealed by event-related potentials
Differences in how the right and left hemispheres (RH, LH) apprehend visual words were examined using event-related potentials (ERPs) in a repetition paradigm with visual half-field (VF) presentation. In both hemispheres (RH/LVF, LH/RVF), initial presentation of items elicited similar and typical …
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Meaning Apprehension in the Cerebral Hemispheres
The first two experiments examined hemispheric differences in the breadth of semantic activation using ambiguous words that possess multiple incompatible meanings, and failed to show significant hemispheric differences in activating and maintaining multiple incompatible meanings. In experiments …
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Understanding the Role of the Ventrolateral Prefrontal Cortex in Emotional Memory using Transcranial Direct Current Stimulation and Transcranial Magnetic Stimulation
… Additionally, previous research has alluded to hemispheric differences in the VLPFC (Chapter 1). However, previous research has been correlational, with no strong laterality tests of the VLPFC. Two experiments tested the roles of the left and right VLPFC in working memory and/or episodic memory …
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Lateralization of Emotion, Reaction Time, and Skin Conductance Responsiveness
… Both words and pictures were used to account for hemispheric differences in language and visuospatial dominance. Response time was faster to emotional pictures than words. Reaction time and speeded accuracy data did not support right hemisphere hypothesis (RHH) or valence hypothesis (VH) in the …
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Hemisphere differences in idiom comprehension: The influence of ambiguity, transparancy, and familiarity
… that several factors between idioms may affect hemispheriC processing. First, the plausibility of an idiom's literal interpretation (i.e., ambiguity) may influence processing in the hemispheres. for example, some idioms have plausible literal interpretations (such as to "break the ice" and are …
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Target detection in left and right hemispace
… 1991). Five experiments presented here explore hemispheric differences in one particular aspect of spatial processing, namely the detection of a particular object or target that appears along with other items. In Experiment 1, subjects were asked to detect a target digit within an array of six …
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Verbal Creativity and Ambiguity Resolution in the Cerebral Hemispheres
This study examined hemispheric differences in ambiguity resolution in subjects who vary on measures of creativity. Subjects were classified as either low, moderate, or high creative based on the results of convergent and divergent thinking tests as well as a personality inventory. Two experiments …
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An fMRI and TMS investigation of response, semantic, and task conflict in the Stroop task.
… using fMRI. We demonstrated evidence for hemispheric differences in attentional control, as the right DLPFC appeared more engaged by response conflict, while left DLPFC activation was unique to pre-response conflict. Surprisingly ACC activation was only associated with semantic conflict. …
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Verbal Memory Through the Looking Glass: The Impact of Encoding Strategy, Age, and Hemispheric Biases on Memory for Physical Form
… this thesis finds that age-related effects and hemispheric differences seen in the ability to retrieve form details may be driven primarily by encoding and retrieval strategies.
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EEG activation patterns in the frontal lobes of stutterers and nonstutterers during working memory tasks
… span task. As hypothesized, there were no group differences in verbal fluency. Also as hypothesized, stutterers had higher error scores (more false positives) on the auditory delayed match-to-sample key press task. This suggests increased sensitivity to auditory stimuli and difficulty inhibiting …
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Investigating neural mechanisms of hand movements in virtual reality
… motor cortex). Moreover, MVF reduced inter-hemispheric differences in beta-band power during movement preparation and execution. Significantly stronger reduction in inter-hemispheric power difference during the execution phase of the movement was observed in the M+G+ compared to M^+G^-. In …
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On the meaning of numbers: flexibility in the structure and retrieval of memories for Arabic numerals
… congruous and incongruous answers but differences in how they evaluate other aspects of provided answers. Specifically, the right hemisphere (and not the left) is sensitive to mathematical relationships beyond whether an answer is right or wrong. The second two experiments assessed how …
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The Influence of AR Head-Mounted Displays on Spatial Perception and Worker Response in Construction Training
… Analysis, and regression modeling to identify hemispheric differences and misalignments between perceived safety and actual psychophysiological responses. Objective 3 advances the framework into predictive modeling, using the same haptic-frame environment, deep learning models, including 2D …
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Variability of the polar stratospheric vortex and its impact on surface climate patterns
… different stratospheric seasonal variability. Hemispheric differences in stratospheric seasonal variability are recovered in the model with appropriate choices of wave-2 topography. In the model experiment with a realistic Northern Hemisphere-like frequency of midwinter warming events, the …
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Die supramodale Verarbeitung individueller Konzepte am Beispiel menschlicher Stimmen und visuell präsentierter Comicfiguren : eine fMRT-Studie der Temporallappen
Ausgehend von den primärsensorischen Arealen verlaufen Verarbeitungswege nach anterior durch die Temporallappen, die der Objekterkennung dienen. Besonders die vorderste Spitze der Temporallappen, der anteriore Temporalkortex, wird mit Funktionen der Objektidentifizierung assoziiert. Es existieren …