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 12 of 12 for “"Dorsal-stream"”.
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Dorsal stream : from algorithm to neuroscience
The dorsal stream in the primate visual cortex is involved in the perception of motion and the recognition of actions. The two topics, motion processing in the brain, and action recognition in videos, have been developed independently in the field of neuroscience and computer vision. We present a …
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Getting a grip on Schizotypy: Elucidating dorsal stream deficits in Schizophrenia Spectrum Disorders
… (SDD) are associated with disproportionate dorsal visual stream dysfunction, relative to ventral visual stream function. However, there remains a gap in our understanding of the neuropsychology and functional implications of this deficit. Notably, the balance of evidence implicating dorsal …
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Getting a grip on Schizotypy: Elucidating dorsal stream deficits in Schizophrenia Spectrum Disorders
… (SDD) are associated with disproportionate dorsal visual stream dysfunction, relative to ventral visual stream function. However, there remains a gap in our understanding of the neuropsychology and functional implications of this deficit. Notably, the balance of evidence implicating dorsal …
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Sensorimotor Modulations by Cognitive Processes During Accurate Speech Discrimination: An EEG Investigation of Dorsal Stream Processing
… between anterior and posterior regions of the dorsal stream in support of speech perception, though it remains unclear how this mechanism responds to cognitive processes in service of task demands. The purpose of the current study was to identify the influences of attention and working memory …
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Sex-related differences in perception and discrimination of different speakers: An analysis of the auditory dorsal stream via EEG
… speaker sex does influence at least anterior dorsal stream activity in a similar fashion for both males and females, but task demands differentially alter anterior and posterior dorsal stream activity in each sex group. These findings may at least partially explain the high variability in …
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Specialized Signals for Spatial Attention in the Ventral and Dorsal Visual Streams
… conceived the visual system as having a ventral stream of vision for perception and a dorsal one associated with vision for action. However functional differences between them have become relatively blurred in recent years, not the least by the systematic parallel mapping of functions allowed by …
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Roles of the Dorsal and Ventral Visual Streams In Fluent Reading
… (e.g., Eden et al., 1996), specifically in the dorsal visual stream of the brain, which processes motion. It is unclear, however, whether or not there is a significant relationship between visual processing in the dorsal stream and reading ability in typically developing children. Furthermore, …
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Automatic Activation of Phonological Templates for Native but Not Nonnative Phonemes: An Investigation of the Temporal Dynamics of Mu Activation
<p>Models of speech perception suggest a dorsal stream connecting the temporal and inferior parietal lobe with the inferior frontal gyrus. This stream is thought to involve an auditory-motor loop that translates acoustic information into motor/articulatory commands and is further influenced by …
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What spatial reference frame is used for priming in visual search?
… two separate cortical systems, the ventral and dorsal streams respectively (Milner & Goodale, 1995, 2006). It is argued that the dorsal stream codes spatial information egocentrically, that is, relative to the observer, and that these representations are highly transient. The purpose of this …
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Independent Component Analysis of Event-Related Electroencephalography During Speech and Non-Speech Discrimination: : Implications for the Sensorimotor ∆∞ Rhythm in Speech Processing
… with traditional EEG signatures within the dorsal sensorimotor stream network; 2) identify components with features of the sensorimotor µ rhythm and; 3) investigate changes in timefrequency activation of the µ rhythm relative to stimulus type, onset, and discriminability (i.e., perceptual …
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PRESERVED GRIP SCALING TO UNSEEN OBJECTS FOLLOWING A UNILATERAL LESION TO V1 FOR IMMEDIATE BUT NOT DELAYED GRASPING
Patients with damage to V1 can sometimes direct actions towards ‘unseen’ targets located in areas of the visual field that are deemed ‘blind’ on the basis of static perimetry tests. Here, we show that a patient with a complete right homonymous hemianopia after a V1 lesion remains sensitive to the …
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Action and rehabilitation in hemispatial neglect
… that receives input from the ventral visual stream, but not from the dorsal-stream. Consequently, they postulate that neglect patients should code spatial parameters for action veridically. Another strong claim of the model is that the dorsal stream’s control of action is designed for dealing …