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 20 of 151 for “"Visual feedback"”.
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Visual feedback in orthopaedic rehabilitation
… which could contribute to sub-optimal outcomes. Visual feedback has had a positive effect in other patient populations, such as stroke survivors, and therefore may also improve the efficacy of TKA rehabilitation. Currently, the most effective way to deliver visual feedback is with motion analysis …
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Context-based visual feedback recognition
During face-to-face conversation, people use visual feedback (e.g., head and eye gesture) to communicate relevant information and to synchronize rhythm between participants. When recognizing visual feedback, people often rely on more than their visual perception. For instance, knowledge about the …
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Visual Feedback for Tongue Movement Analysis
Neurological injuries can impair speech and control of the tongue. Existing rehabilitation methods are largely qualitative and lack objective performance metrics. To address these limitations, the Wearable Technology and Sensory Enhancement Laboratory at UIC has developed the Tongue-Trackpad …
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Investigation of Rapid Visual Feedback Processing
… responses in less than 100 ms when responding to visual stimuli. The earliest wave of these responses can be time-locked to the stimulus onset (Stimulus-locked Response, SLR) rather than the movement itself. Previous work highlights that these responses are generally more prevalent under …
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French Pronunciation Learning and Computer-Mediated Visual Feedback
… Recordings were made either with or without visual pronunciation feedback. Subjects in the audio condition heard and repeated target words and sentences modeled by male and female French native speakers; students were instructed to listen to their own production and correct it by …
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Visual Feedback Stabilisation of a Cart Inverted Pendulum A
… between applied forces and vision-based feedback. To coordinate our actions and facilitate delivery of precise amounts of muscle torque, we primarily use our eyes to provide feedback in a closed-loop control scheme. This ability to control an inherently unstable object by vision-only …
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Ros-Drill Automation: Visual Feedback Control And Rotational Motion Tracking
… of the rotational oscillation</em>, Visual feedback is used to track the pipette tip. Predetermined species-specific penetration depth is successfully utilized to initiate the rotational oscillation command. Penetration-depth-based decisions concur with a curvature-based approach. In …
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Virtual reality visual feedback and its effect on brain excitability
This dissertation examines manipulation of visual feedback in virtual reality (VR) to increase excitability of distinct neural networks in the sensorimotor cortex. The objective is to explore neural responses to visual feedback of motor activities performed in complex virtual environments during …
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An Examination Of Aggressive Responding To Visual Feedback And Physical Provocation
… Aggression Paradigm to test whether a form of visual provocation might be more salient in producing a physically aggressive response than a physical stimulus (i.e., shock). Male and female university undergraduates were recruited to participate, and assigned to one of three conditions: accurate …
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The Effects of Instant Visual Feedback of Congruence in Group Counseling
… study was to determine the effects of immediate feedback of congruence by subjects in group counseling. Measures of outcome included the Tennessee Self-Concept Scale (TSCS), Fundamental Interpersonal Relations Orientations-Behavior (FIRO-B), the Tentative Scale for the Measurement of Genuineness …
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Effects of force and visual feedback on space teleoperation : with policy implications
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1988, and Thesis (M.S.)--Massachusetts Institute of Technology, Technology and Policy, 1988.
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Effects of Video Modeling and Visual Feedback on Handwashing in Preschool-Age Children
… to evaluate the effects of a video-modeling and visual-feedback intervention package on preschool-aged children’s handwashing using a multiple-baseline-across-groups design. Furthermore, to increase intervention effects even more, we implemented visual feedback plus in-situ feedback during …
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Postural Time-To-Contact, Real-Time Visual Feedback Of Postural Activity, And Motion Sickness
… falling. Standing participants were exposed to visual oscillation stimuli. I measured the kinematics of the body’s center of pressure. The results show that postural time-to-contact differed between the Well and Sick groups before and during the exposure to the visual motion stimuli. The …
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Effects of auditory feedback and real-time visual feedback on second language tone learning
… a paradigm that incorporates auditory feedback called pitch-shift paradigm. The pitch-shift paradigm, in which a short and artificial change in pitch is fed back to speakers during vocalization, has been used to investigate how sensory information affects the way we control our speech …
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Using visual feedback to guide movement: Properties of adaptation in changing environments and Parkinson's disease
On a day-to-day basis we use visual information to guide the execution of our movements with great ease. The use of vision allows us to guide and modify our movements by appropriately transforming external sensory information into proper motor commands. Current literature characterizes the process …
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Comparison of performance for visual feedback and cursors in mid-air grasping of 3D objects
While investigating the performance benefits of visual feedback for grasping in midair interaction based virtual reality simulations, some studies noted that user performance in tasks has not improved when using visual feedback methods, while it has improved in other, similar studies. This thesis …
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The efficacy of visual feedback to enhance sporting performance with specific reference to field hockey
Bibliography: leaves 175-194.
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Movement Function Follows Spatial Form: Coordinate System Implications for Online Visual Feedback Control of the Hand
Closed loop visual feedback control of the hand is essential for accurate reaching movements. Without visual signals of either the hand or target position, reaches are inaccurate and imprecise; therefore the brain uses a relative positional signal to control movements online. Previous studies …
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Effects of Visual Feedback on the Production and Perception of Second Language Speech Sounds : A Comparison of Articulatory and Auditory Instruction
… changes in production and perception following visual feedback training with either articulatory or acoustic speech targets. Eleven second language (L2) learners of English participated in a single session of pronunciation practice in which they produced either an English vowel (/æ/-/ɛ/) or …
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