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 19 of 19 for “"Biological motion"”.
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Visual Perception of Biological Motion
… the roles played by relative and absolute motion components in the visual pick-up of information about activity identification and speed estimation. A human performer produced 7 actions ranging from overarm throwing to overarm bowling, at 5 different speeds. A Selspot System recorded actual …
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Sensorimotor Processes Underpinning Imitaiton Learning of Biological Motion
… present thesis was to examine the way in which biological motion is coded and imitated during imitation learning by improving upon methodologies currently used in the literature to examine imitation of underlying movement kinematics. Across four experiments, imitation of the kinematic structures …
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Imitation of atypical biological motion in autism spectrum disorders
… the present thesis was to examine imitation of biological motion in adults with autism spectrum disorders. Using a novel behavioural protocol, adults with autism and matched neurotypical control adults imitated models that displayed distinctly different, but biological believable kinematics. In …
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Temporal and spatial contextual modulation of walking direction in biological motion
… on perceived walking direction, employing biological patterns of motion – point light animations. Chapter 2 uses an adaptation technique to investigate the sensory coding of perceived walking direction, and finds that adaptation to a specific walking direction results in repulsive …
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Attention allocation during the observation of biological motion: an EEG study
The processing of observed biological motion that is the movement of biological organisms has an important role in animals’ vigilance and survival. For humans, it is also implicated in the development of social cognition and communication, with infants showing preferential attention towards motion …
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Biological motion processing in typical development and in the autism spectrum
<p>Biological motion (BM) analysis and interpretation is a fundamental process of human neurocognition that has been only minimally explored neurophysiologically. In addition to its importance in understanding the underlying roots and development of social cognition, BM processing is a prime …
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The Effects of Common Fate Grouping on Suprathresold Depth Estimates
… Here I tested if this effect generalises to motion based grouping cues, specifically common fate. Stimuli were presented on a mirror stereoscope and an on screen ruler was used to record depth magnitude estimates. It was found that depth estimates were accurate over a range of suprathreshold …
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Visual Perception in Hearing Sign Language Users
… including the perception of faces and peripheral motion. These visual enhancements are thought to compensate for an absence of auditory input. However, it is also possible that they reflect experience using a visual-manual language, where signers must process complex moving hand signs and facial …
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Design and Characterization of a Nonlinear Stiffening Spring for a Series-Elastic Ankle-Foot Prosthesis
… amputees’ walking experiences by replicating the biological motion of human gait. Series elastic actuators improve the prostheses, simulating the function of a biological tendon by storing and releasing energy during gait, reducing the mechanical work required by the motor and transmission system. …
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A multi-facetted approach to investigating theory of mind in corvids
… context. In Chapter 4, I report a study on biological motion perception in scrub-jays, a phenomenon suggested to be crucial for the detection of social agents. In Chapter 5, I assess scrub-jays’ sensitivity to gaze of a human and a conspecific. Finally, in Chapter 6, I report a study …
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Social predispositions and underlying neural mechanisms in chicks (Gallus gallus domesticus)
… naïve chicks for instance, spontaneously prefer biological motion patterns as well as face-like stimuli. Similar evidence has been collected on human adults and infants. In the present work, we aimed to investigate both dynamic and static cues eliciting spontaneous social attraction in visually …
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Mental acrobatics: Spatial perceptions of human rotation
… reference frame during the spatial perception of biological motion may be consistent across conditions regardless of participant orientation.
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The recognition of emotional biological movement in individuals with typical development and Autism Spectrum Disorder (ASD)
… I have explored the ability in recognizing the emotional valence of human movements in people with ASD and with typical development. In order to understand developmental changes, I have initially compared this ability between children and adults. In order to understand the role of intelligence, I …
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The contributions of posterior lateral temporal cortex to language and control networks
… processing, face processing, theory of mind and biological motion processing), in order to map out subregions within the pLTC that are shared and distinct across domains, and generate hypotheses about the cognitive processes that may be supported by these regions. From the meta-analyses, several …
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Looking for a Simplicity Principle in the Perception of Human Walking Motion
… coding theory to marker-based human walking motion. We compare two representation schemes. The first is based on marker coordinates in a body-centred Cartesian coordinate system. The second is based on a model of 15 rigid body segments with Euler angles and a Cartesian translation for each. …