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 27 for “"Internal Models"”.
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Development and Utilization of Internal Models of Dynamic Systems: A Comparison of Monitors and Operators as Failure Detectors
Made available in DSpace on 2014-12-13T18:22:06Z (GMT). No. of bitstreams: 1 7913510.pdf: 5049257 bytes, checksum: 025a39595edf60f2ad643d1b8444503e (MD5) Previous issue date: 1978
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Dynamic Primitives in Human Manipulation of Complex Objects
… a cup of coffee while inducing minimum internal oscillations, this study investigated the nature of human interactions with a complex object. An open-loop control strategy consisting of composition of submovement and impedance dynamic primitives was proposed and simulated. The effect of …
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Effects of auditory feedback and real-time visual feedback on second language tone learning
… can be used to understand the stability of internal models for tone and to reveal how internalized pitch representations are built or reshaped. Study 1 examined the language experience effect on pitch-shift responses and non-/linguistic tone discrimination. Discrimination of musical tones …
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Manual Control of Higher Order Systems
The theory that human operators employ internal models to aid in the control of complex dynamic systems is prevalent in the psychological and manual control literature. Yet empirical evidence and the subsequent analytical representation of such models is scarce.
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Feedback control of cerebellar learning
… that the cerebellum acquires “expectations” or “internal models”. However, except in a metaphorical sense, the cerebellum, which consists of a set of interconnected nerve cells, cannot contain “internal models” or “have expectations”. The aim of this thesis is to untangle these metaphors by …
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Industry value at risk in Australia
Value at Risk (VaR) models have gained increasing momentum in recent years. Market VaR is an important issue for banks since its adoption as a primary risk metric in the Basel Accords and the requirement that it is calculated on a daily basis. Credit risk modelling has become increasingly important …
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Decentralization and Hierarchical Organization for Control of Adaptive and Cognitive Behavior in Autonomous Robots
… to the behaving system itself as it is using an internal simulation to predict possible outcomes. In this thesis, I propose a minimal cognitive system that integrates these two kinds of processes in one control system for a six-legged robot. On the one hand, adaptive behavior emerges from …
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Effect of neck muscle vibration on upper limb sensorimotor integration and motor performance
Upper limb control depends on accurate internal models of the position of the limbs relative to the head and neck. The cerebellum is heavily involved in SMI of neck sensory inputs and motor learning; therefore, it is likely that altered neck sensory input will impact cerebellar processing. However, …
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Optimal control strategies for saccadic eye movements in humans
… and closed loop control, dynamic optimization, internal models, and learning. In this dissertation, aspects of these various approaches will be utilized within the context of the human eye system. After establishing the mathematical description of ocular dynamics we shall explore the differences …
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Internalizing the System Dynamics for a Second Order System (Internal Model, Tracking)
… experiments which tested characteristics of the internal model developed for the system dynamics. The internal model differed depending on the kind of training received. Two of the groups, the control and the point predictor groups, internalized the second order system incorrectly as a first …
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The impact of the FRTB on Market Risk Capital for the South African InterBank Interest Rate Market
… (i) a Standardised Approach (SA); and (ii) an Internal Models Approach (IMA). The global financial crisis of 2008 highlighted flaws in the Basel 2 regulatory framework used by banks to calculate market risk capital charges for trading operations. In 2009, Basel 2.5 was introduced to deal with …
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Characterizing motor control signals in the spinal cord
… signal is a reference trajectory planned using internal models. This has important consequences in design of neuroprosthetic actuators: Inverse dynamic models of patient limbs and local positional feedbacks can improve their performance.
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Human Rights in Postcommunism: Discourse and Parties in the Development of Religious Freedom
… of the concept of 'nation' yields an external, internal and strong internal models of church-state relations in which, respectively, elites postulate a significant, necessary or sufficient relationship between church and nation. The multiplicity of these models allows us to identify types of …
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Predictions in a dynamic world: the adaptive role of the Active Prediction Network
… integrating newly encountered regularities into internal models of environmental statistics and by coordinating the sequence of operations required to sustain active prediction. Predictive computations carried out by the APN facilitate processing within semantic representational regions belonging …
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Acetylcholine dynamics in the retrosplenial cortex during spatial uncertainty
Adaptive behaviour requires updating internal models in response to uncertainty, which can be divided into expected and unexpected forms. The retrosplenial cortex (RSC) is a hub for spatial navigation and the default mode network, integrating egocentric and allocentric inputs, contextual …
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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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An adaptive agent architecture for exogenous data sales forecasting
… architecture which employs Bayesian networks as internal models. We develop a sales forecasting system for a meat wholesale company whose sales are largely affected by exogenous factors. The company's current sales forecasting approach is solely qualitative, and the nature of their sales is such …
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A Cognitively Inspired Architecture for Wireless Sensor Networks: A Web Service Oriented Middleware for a Traffic Monitoring System
… architecture combines (i) a cognitively inspired internal representation for analyzing and answering queries concerning the observed system and (ii) a service oriented architecture that facilitates interaction among individual modules, of the internal representation, the observed system and the …
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Computational studies of cerebellar cortical circuitry
… the prediction sensory error used to update an internal model. These results provide new insights into the cerebellum function and have interesting implications for the forward internal model hypothesis. The tottering mouse is an autosomal recessive disorder involving a mutation in the gene …
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Influencing Oral-nasal Balance in Speech and Song
… The findings implied that trained singers’ internal models for controlling oral-nasal balance may not be as refined as those that guide other vocal parameters. The second project (Santoni et al., 2019) explored the influence of voice focus adjustments (forward and backward vocal tract shape …
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