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 69 for “"Visuomotor"”.
-
Visuomotor Learning and Proprioception Across Development
… simplest daily tasks. This can be examined in visuomotor adaptation paradigms where the motor system is challenged to compensate for changes in vision, such as learning to reach to targets on a screen with a misaligned hand-cursor, which our brains do through trial-and-error. A motor command is …
-
View Synthesis for Visuomotor Policy Learning
Visuomotor policy learning is the problem of teaching machines how to use visual information to determine how to interact with their environment. Recent approaches have harnessed deep learning models to demonstrate impressive results in multi-modal and multi-task generalization. However, these …
-
Internal visuomotor models for cognitive simulation processes
Recent theories in cognitive science step back from the strict separation of perception, cognition, and the generation of behavior. Instead, cognition is viewed as a distributed process that relies on sensory, motor and affective states. In this notion, internal simulations -i.e. the mental …
-
The Effect of Age on Visuomotor Learning Processes
… (n=42) adults were able to compensate for a 30o visuomotor rotation during reach-training, and use this strategy afterwards when reaching without a cursor. Next, training-induced changes in proprioceptive and predicted estimates of the adapted hand in these two age groups were compared. This was …
-
Role of the Parabigeminal Nucleus in Visuomotor Behavior
… of the midbrain. To identify activity related to visuomotor behavior, we recorded from PBN cells in cats trained to fixate moving and stationary targets. Cats tracked moving targets primarily with small catch-up saccades, and for target speeds of 2--6 deg/s, they did so with sufficient accuracy to …
-
Naturalistic Visuomotor Behaviours Reveal Reduced Handedness Lateralization In Autism
… often exhibit differences in perceptual and visuomotor functioning, potentially reflecting reduced cortical specialization. The current study investigates how handedness, a robust marker of cerebral lateralization, is modulated in autistic and non-autistic right-handed adults (n=27 per group) …
-
Competition Between Veridical and Perceived Location for Visuomotor Control
… the physical location of the disk, showing that visuomotor system used veridical prime location. Our experiments demonstrate that our visuomotor systems use both sources of information, veridical as well as consciously perceived location to guide behavior.</p>
-
The influence of uncertainty and urgency on visuomotor decision making
Visuomotor decision making was investigated using a virtual shooting paradigm where subjects controlled a ‘gun’ with a computer mouse. Subjects had a limited amount of time to choose and fire at a target among two options that varied in size and motion complexity. Results show that internal …
-
Rule-dependent and stimulus-dependent visuomotor mappings of other's actions
… in stimulus-dependent and rule-dependent visuomotor associations. In the first experiment we demonstrated a biphasic time-course of motor cortical excitability during a counter-imitative task: a stimulus-dependent automatic simulation at 150 ms from the stimulus onset and a rule-dependent …
-
Visuomotor adaptation in young adults with and without motor difficulties
… (DCD) have shown motor learning deficits in visuomotor adaptation tasks, and the failure of detecting errors seems to be the key that impedes motor learning. Recent studies suggested that presenting larger feedback improves the rate and extent of motor learning in healthy subjects and stroke …
-
Visuomotor adaptation in older adults with and without cognitive impairment
… learning processes are believed to be central to visuomotor adaptation. Research has shown that increasing error feedback may enhance adaptation in neurologically damaged participants. Some literature on dementia and motor learning has indicated that demented patients have a tendency to rely more …
-
Predictive Models for Visuomotor Feedback Control in Object Pile Manipulation
… states directly from images to use for visuomotor feedback control. Given this burden of state estimation, is there a practical alternative representation that lies closer to our observations? In addition, how can we build predictive models over such representations that can be useful …
-
An Electrophysiological Examination of Visuomotor Activity Elicited by Visual Object Affordances
… of the behavioural claims of rapid and automatic visuomotor activation evoked by viewing affording objects. The temporal sensitivity offered by the Lateralised Readiness Potential and by visual evoked potentials P1 and N1 made ideal candidates to assess the behavioural claims of rapid visuomotor …
-
Conditional visuomotor behavior in the Parietal Reach Region and Dorsal Premotor Cortex
Willentlich gezielte Armbewegungen auszuführen gehört zu den grundlegenden Fähigkeiten aller Primaten. Diese Fähigkeit erscheint uns einfach und intuitiv, jedoch beinhaltet sie eine komplexe Übersetzung sensorischer Informationen in Muskelaktivitätsmuster. Es ist nicht nur interessant, wie wir eine …
-
Sex-Related Differences in Visuomotor Skill Recovery Following Concussion in Working-Aged Adults
The performance of complex visuomotor tasks in which the guiding visual information does not align spatially with the required motor output is contingent on the brain's ability to integrate somatosensory information into an appropriate motor response. Performance on such "cognitive-motor …
-
The Effect of Mental Fatigue on Explicit and Implicit Contributions to Visuomotor Adaptation
… and implicit (unconscious) processes to visuomotor adaptation. Participants were divided into Mental Fatigue (MF) and Control groups. Mental fatigue was induced through a time load dual back task (TLDB), in which participants were required to respond as quickly and accurately as possible …
-
The Role of the Dorsal Premotor and Superior Parietal Cortices in Decoupled Visuomotor Transformations
… differently during coupled versus decoupled visuomotor transformations. To address the relative contribution of these various cortical regions during decoupled reaching movements, we trained two female rhesus macaques on both coupled and decoupled visually-guided reaching tasks. We recorded …
-
The role of frontal cortical-basal ganglia circuits in simple and sequential visuomotor learning
… related regions of frontal cortex in visuomotor learning. Two experiments were conducted to elucidate the role of frontal cortex and striatum in visuomotor learning. Several tasks were used to characterize motor function including: a visuomotor reaction time (VSRT) task, measuring …
-
The involvement of the primate frontal cortex-basal ganglia system in arbitrary visuomotor association learning
… cortex-basal ganglia system during arbitrary visuomotor association learning, the forming of arbitrary links between visual stimuli and motor responses (e.g. red means stop), a fundamental learning process that underlies much of our complex behavior such as written language. The experiments …
Page 1 of 4