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 19 of 19 for “"object processing"”.
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Electrophysiological correlates of multiple object processing
… street depend on our ability to process multiple objects simultaneously. According to some theories this ability relies on at least two stages or mechanisms related respectively to visual attention and visual working memory (WM). The early stage of multiple object processing – individuation – is a …
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The Neural Development of Visuohaptic Object Processing
Object recognition is ubiquitous and essential for interacting with, as well as learning about, the surrounding multisensory environment. The inputs from multiple sensory modalities converge quickly and efficiently to guide this interaction. Vision and haptics are two modalities in particular that …
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Towards a unified account of face (and maybe object) processing
… and are thought to be processed differently from objects by the human visual system. Going beyond the false dichotomy of same versus different processing, it is more important to understand how exactly faces are processed similarly or differently from objects. However, even by itself, face …
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A systematic exploration of perceptual and semantic differences in category-specific object-processing using magnetoencephalography
… (MEG). Our experiments explored the temporal processing of objects, as MEG characterises neural activity on the order of milliseconds. Our experiments explored object-processing, including assessing the time-course of ob¬ject naming, early differences in processing living compared with …
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Distributed Activity Patterns for Objects and Their Features: Decoding Perceptual and Conceptual Object Processing in Information Networks of the Human Brain
How are object features and knowledge-fragments represented and bound together in the human brain? Distributed patterns of activity within brain regions can encode distinctions between perceptual and cognitive phenomena with impressive specificity. The research reported here investigated how the …
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Somatosensory Involvement in the Conceptual Representation of Objects
… involvement of the sensorimotor system in visual object processing is at the forefront of cognitive neuroscience research. Since the discovery of the mirror neuron system, a plethora of research has been dedicated to understanding how action influences cognition. Of particular interest to the …
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Electrophysiological correlates of motor plans and graspability via dorsal/ventral interactions
… a growing body of evidence suggests these processing streams may not be as independent as once thought. Our current investigation is predicated on the observation that many visuomotor behaviors (mediated through the dorsal pathway), such as the manipulation of man-made tools, are contingent …
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Looking through the crowded mask: investigating the effect of distractor number and position in object substitution masking
Object substitution masking (OSM) is a phenomenon wherein a surrounding mask (typically four dots) that onsets with a target but lingers after its offset significantly reduces target perceptibility. OSM was originally postulated to occur only when spatial attention was spread (Di Lollo et al., …
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Mapping the time-course and content of visual predictions with a novel object-scene associative memory paradigm
… of contextual facilitation effects in visual object processing. In all three experiments, participants studied novel object-scene pairs in a paired associate memory paradigm. At test, we presented the scene first, followed after a delay by the test object, which either matched or mismatched …
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Color and Texture Influences in Primed Object Categorization
… by texture and color with regard to conceptual processing was investigated using a priming paradigm. Using standardized sets of stimuli, priming techniques were utilized to investigate how one would typically acquire information and subsequently respond in the real world. A masked prime was …
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Heritage Speaker and Late Bilingual L2 Relative Clause Processing and Language Dominance Effects
… <p>The present study examines group-level processing differences between Spanish heritage speakers and Spanish-English late bilinguals in English, the second-learned and current societal majority language of these populations. Dominance is also analyzed as a possible effect of group …
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Cortical Processing of Visual Parts and Wholes
… distinguishes between two distinct levels of object processing: holistic, based on global shape, and configural, based on local features and/or component parts. Empirical evidence suggests that different cortical regions may support these levels; holistic processing correlates with activation …
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Pattern Separation in the Ventral Visual Stream
… visual representations to conjunctive whole-object representations, with the latter allowing for distinct coding even when objects have significant feature overlap. In the current study, we asked whether this transformation can be understood as pattern separation, and whether pattern …
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Memory-related cognitive modulation of human auditory cortex: Magnetoencephalography-based validation of a computational model
… circuits correlated to shortterm memory (STM) processing that underlie the task-specific modulation of human auditory perception during performance of the delayed-match-to-sample (DMS) task. The experimental approach measures high-density magnetoencephalography (MEG) signals from human …
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Brain Rhythms in Object Recognition and Manipulation
Our manual interactions with objects represent the most fundamental activity in our everyday life. Whereas the grasp of an object is driven by the perceptual senses, using an object for its function relies on learnt experience to retrieve. Recent theories explain how the brain takes decisions based …
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An fMRI study of object recognition and cerebral laterality
… visual cortex houses a hierarchical system for object processing and exhibits category-specific processing, especially for fine-grained discrimination of words and faces. The degree to which different regions in ventral visual cortex, within and between the two cerebral hemispheres, are involved …
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Examining Face Perception with Self-Reports and Neural Measures: An SSVEP study
… face perception. Neural activity related to the processing of attended and unattended faces was recorded with electroencephalography (EEG) measurements using steady-state visually evoked potentials (SSVEPs). It was then compared to the neural activity during object recognition. Participants with …
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The development of number processing and its relation to other parietal functions in early childhood
… and occipito-temporal cortex (face and object processing), in order to investigate their contributions to the acquisition of formal arithmetic in the first year of schooling. We tested preschooler, first grader and adult subjects, using correlational cross-sectional and longitudinal …