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.
Results
Showing 1 to 20 of 25 for “"premotor cortex"”.
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Conditional visuomotor behavior in the Parietal Reach Region and Dorsal Premotor Cortex
… der Parietal Reach Region (PRR) und dem dorsalen Premotor Kortex (PMd), aufgenommen, während die Tiere eine Verhaltensaufgabe lösen mußten. Weiterhin wurde ein Computermodell entwickelt, welches sich an den neuronalen Ergebnisse orientierte, um die zugrundeliegenden Mechanismen der …
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Representation of Whole-body Navigation in the Primary Sensorimotor and Premotor Cortex
… primary somatosensory (S1), and dorsal premotor (PMd) cortices. Wheelchair</p><p>BMI where users’ desired velocity commands are decoded from these cortical neu-</p><p>rons can be used to restored mobility for the severely paralyzed. In addition,</p><p>spatial information in these areas …
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Investigation of Endogenous Retroviruses in the Pathogenesis of Sporadic Amyotrophic Lateral Sclerosis (ALS) by
… (HML-2) transcripts were reported as elevated in premotor cortex samples from an ALS American cohort by Li et.al. (2015) the RT-qPCR assays performed in this sudy, using the same primers and reaction conditions in a larger ALS UK cohort were unable to corroborate these findings. Our collaborators …
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Rule-dependent and stimulus-dependent visuomotor mappings of other's actions
… anatomo-functional pathways: a parieto-(premotor) network mediating early stimulus-dependent responses and a (temporo)-prefrontal network producing late rule-dependent responses. Thus, the first experiment adds important information on the mechanisms by which the brain is both tuned to …
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CARATTERIZZAZIONE DEI PIGMENTI DELL'INVECCHIAMENTO NEL CERVELLO UMANO:NEUROMELANINA E LIPOFUSCINE
… method to isolate lipofuscins from human premotor cortex – gray matter. This method consents to obtain lipofuscins sample without sub-cellular organelles contaminants. For this reason the lipofuscins isolated with this methodology is suitable for proteomic and lipidomic analyses. The …
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Mapping the Spatial and Temporal Dynamics of Sensorimotor Integration During the Perception and Performance of Wallowing
… integration.’ It is well known that the premotor cortex and primary sensorimotor cortices provide critical sensorimotor contributions that help control the strength and timing of swallowing muscle effectors. However, the temporal dynamics of sensorimotor integration remains unclear, even …
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Neural Correlates of Reach Planning and Execution
… investigates neural activity in the dorsal premotor cortex of the macaque monkey while simple and complex reaching movements are planned and executed. A novel virtual-reality obstacle-avoidance task is used to decorrelate the direction of the initial segment of the trajectory from the …
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From prosodic structure to acoustic saliency: an fMRI investigation of speech rate, clarity, and emphasis
… neurally by increased activity in right middle premotor cortex and supplementary motor area, and bilateral primary sensorimotor cortex. These findings are consistent with right-lateralized motor planning of prosodic variation in emphatic speech. Clear speech involved an increase in average vowel …
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Influence of Vibratory Plantar Stimulation on Cortical Motor Planning and Spatiotemporal Step Parameters
… continuous integration of sensory feedback. The premotor cortex (PMC) supports movement preparation, while plantar mechanoreceptors provide essential input for anticipatory postural adjustments and gait initiation. Although previous literature suggests that plantar vibratory stimulation can …
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From thought to action
… spiking activity of neurons in primate dorsal premotor cortex (PMd). Point process modeling of target representation suggests that local and possibly also distant neural interactions influence the spiking patterns observed in PMd. In the second part, I draw on results from surveillance theory …
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Method for acute Neuropixels probe recordings in non-human primates
… stable neurophysiological recordings in premotor cortex of a rhesus macaque at rest and during performance of a behavioral reaching task. Once data were collected, we proceeded to evaluate neuronal responses across the NP probe shank to characterize changes in information processing …
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The Role of Aerobic Glycolysis in the Resting Human Brain
… including the default network and prefrontal cortex, have elevated aerobic glycolysis. In addition, we show that aerobic glycolysis is modulated by prior task performance. Performance of a complex visuomotor rotation learning task increases aerobic glycolysis in premotor cortex for several …
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Neural representations used by brain regions underlying speech production
… learning - including the basal ganglia and premotor cortex - as well as regions associated with learning and updating speech motor representations based on sensory input - including the bilateral frontal operculum and left posterior superior temporal sulcus (pSTs). Behavioral learning …
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Individual Differences in Secondary Hyperalgesia and Associated Neural Activity
… activity in the inferior parietal lobe and the premotor cortex during pain stimulation was associated with the development of larger areas of secondary hyperalgesia. Taken together, these findings suggest increased activation in brain regions contributing to multisensory integration, spatial …
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Haptic-based object-directed behavior: the role of parietal operculum.
… A specific paragraph is dedicated to ventral premotor cortex (PMv) and its role in visually guided grasping. The Chapter 2, is a review of the literature about the cytoarchitecture, the connectivity and the physiology of humans and non- human primates parietal operculum. In Chapter 3 the …
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The Role of the Dorsal Premotor and Superior Parietal Cortices in Decoupled Visuomotor Transformations
… of the parieto-frontal reach network. The dorsal premotor cortex (PMd) and the superior parietal lobule (SPL) remain prime candidates within this network for controlling the transformations required during visually-guided reaching movements. Our brains are primed to reach directly towards a viewed …
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Where symbols meet meanings: The organization of gestures and words in the middle temporal gyrus
… middle temporal gyrus (pMTG) and to the ventral premotor cortex (PMv) in different sessions, while participants were performing either a semantic or a perceptual judgment task. According to motor theories of action understanding, rTMS applied to the PMv, but not to the pMTG, should impair …
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Utilization of auditory cues to enhance therapy for children with cerebral palsy
… studies, it is suggested that activity in the premotor cortex may represent the integration of auditory information with temporally organized motor action during rhythmic cuing. Based on this theory, researchers have shown that rhythmic auditory stimulation can produce significant improvement …
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TMS and fMRI studies investigating the neural mechanisms of tool perception
Human occipitotemporal cortex (OTC) is organized into distinct areas that are selectively activated by the visual presentation of different categories, like faces (Kanwisher et al., 1997), bodies (Downing et al., 2001), tools (Chao et al., 1999), hands (Bracci et al., 2010), and places (Epstein et …
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Cortical Control of Naturalistic Facial Expression Production in Primates
… representations, including primary (M1), ventral premotor (PMv), and cingulate motor (M3) cortices. Much like their human counterparts, macaques use facial expressions to navigate both cooperative and competitive interactions with conspecifics. Yet despite their integral role in social …
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