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 34 for “"Cognitive system"”.
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Dynamic Cellular Cognitive System
Dynamic Cellular Cognitive System (DCCS) serves as a cognitive network for white space devices in TV white space. It is also designed to provide quality communications for first responders in area with damaged wireless communication infrastructure. In DCCS network, diverse types of communication …
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BREAKING BREAD, SHAPING UNDERSTANDING: THE ECO-FOOD COMMUNITY AS COGNITIVE SYSTEM
… who operate in what I describe as a group cognitive system. While studies on embodied cognition have been done on both individuals and groups involved in various concrete physical tasks and situated cognition studies have been done on many types of socially situated conversations, my aim is …
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Decentralization and Hierarchical Organization for Control of Adaptive and Cognitive Behavior in Autonomous Robots
… while minimizing any harm 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, …
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Learning and adapting visual models for multiple specialized tasks
… through visual means. We humans, through our cognitive system, are able to localize other people and objects in scenes, understand their relationship to the surrounding environment, and reason about not only their actions and attributes, but also about concepts which require knowledge beyond …
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Vocalizing Behavior in Killer Whales (Orcinus orca) – an Evolutionary Account
… orca vocalization and orca symbolic vocalization systems. We postulate hypothetical orca counterparts of the elements of language described in Chomsky’s account and trace out the relevant contingencies of such counterparts. We ask whether they might allow orcas to achieve what the faculty of …
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Reference Frames in Human Sensory, Motor, and Cognitive Processing
<p>Reference-frames, or coordinate systems, are used to express properties and relationships of objects in the environment. While the use of reference-frames is well understood in physical sciences, how the brain uses reference-frames remains a fundamental question. The goal of this dissertation is …
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The Negative Impact of Posttraumatic Stress Disorder on Working Memory of Icelandic University Students
Working memory is a complex cognitive system essential for everyday living. It is important for all kinds of cognitively demanding activities such as reading, writing and carrying out conversations. Working memory capacity has been compared to a resource that ,,feeds'' working memory. Is the …
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An ERP investigation of symbolic and nonsymbolic fraction processing
… difficulty may stem from a lack of an underlying cognitive system that allows us direct, intuitive access to fraction magnitude. However, there is mounting evidence that processing ratios can indeed be intuitive (not accessed via explicit strategies). Currently, limitations in temporal resolution …
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Investigations linking the philosophy and psychology of mathematics
Recent progress in the field of cognitive science, specifically with respect to mathematical cognition, along with the turn in the philosophy of mathematics to a focus on mathematical practice, make for a great opportunity for interdisciplinary work that brings together the cognitive science of …
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The Consonant/Vowel Distinction: A Cognitive Difference Evidenced by Glides
… domain. These domains are realized in the cognitive system largely through feedback processes. Evidence in support of this hypothesis comes from cross-linguistic and experimental data on glides, the most vowel-like consonants. The experimental results show differential patterns in the …
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Modelling the behaviour of a process control operator under stress
… control operator is proposed. There exists many cognitive models, each of which attempts to model a specific class of human behaviour. One major effect of stress is the cause of errors, both physical and cognitive. In order to model the effects of stress, two cognitive models, a cognitive model …
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Análise da navegação com ECDIS (sistema de apresentação de cartas eletrônicas e informações) utilizando conceitos de engenharia de resiliência
The Electronic Chart Display and Information System (ECDIS) has become a key element in ships' bridge and it is of great importance for the officer to interact well with the system to maintain safety of navigation. The objective of the study is to analyze the shared cognitive system between the …
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Investigating the role of simulation fidelity in laparascopic surgical training
… limitations of the sensory, motor, and cognitive system of the human user, perfect simulation is unnecessary. Furthermore, given the large variations in human anatomy and physiology, there is no single perfect model. The question is how simple a simulation can we get away with, while at …
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Comparative Studies of Numerical Cognition in Nonhuman Primates: From Numerical Comparison to Arithmetic
… primates share an evolutionarily ancient system of nonverbal number representation. By and large, the focus in the field has been on providing existence proofs of numerical competence in wide-ranging taxa or using individual species as models for comparisons with humans. Recent findings in …
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The effect of interference and time on forgetting in visual short-term memory
‘Memory’ is a flexible cognitive system, adapting to suit the specific needs of the individual. Creating and losing memories helps to maintain the harmony of a complex set of neurological processes. However, the reason for losing memories has led to a contentious debate, especially in short-term …
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Data comparison schemes for Pattern Recognition in Digital Images using Fractals
… solution which can be compared with the human cognitive system in which a pattern can be recognised subject to arbitrary orientation and scale. The application of Artificial Neural Networks can in principle provide a very general solution providing suitable training schemes are implemented. …
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Extended cognition, dynamics, and algorithms. A turing machine based approach to the study of arithmetical skills
The fields of philosophy of mind and cognitive science have been characterized, in the last few decades, by a growing interest for explanations of mind's activity in terms of interaction between brains, bodies and the world. Embodiment, embeddedness, situatededness are key words that most often can …
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Exploring socio-affective mental health risk factors in adolescence
… mental health disorders; in particular the socio-cognitive affective processing in depression across the lifespan. Depression risk is prevalent amongst adolescents, and there has been considerable research interest focusing on building a clear profile of the mechanisms of depression based on adult …
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The accessibility of memory items in children’s working memory
This thesis investigates the processes and systems that support recall in working memory. In particular it seeks to apply ideas from the adult-based dual-memory framework (Unsworth & Engle, 2007b) that claims primary memory and secondary memory are independent contributors to working memory …
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Investigating the effect of self-cues on children and adults’ visuospatial and verbal working memory, and its applications in maths word problem solving
Working memory (WM) is a limited cognitive system responsible for the temporary storage and manipulation of information. It is argued that the successful execution of WM tasks is dependent on attentional control. As self-cues have been associated with biases in attention, the present thesis sought …
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