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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

EEG-Based Speech Decoding Using a Machine Learning Pipeline / Avkodning av tänkt tal via EEG-signaler med hjälp av maskininlärning

Önerud, Julia January 2023 (has links)
his project aims to find a method that will help fill the information gaps in electroencephalography (EEG) brain-computer interfaces (BCI) research, by creating a pipeline method that allows for quicker research iterations than current state-of-the-art methods. The pipeline method is a multi-step processstarting from the recording EEG data from a subject performing a thought paradigm action, continuing with processing and decoding of the data, and ending with visualization and analysis the decoded results. Thought paradigms are in this project defined as different ways that the subject can think, with different words and different ways of thinking of those words. The pipeline will utilize various machine learning methods to be able to reach the two main goals of quickly being able to analyze and compare different paradigms and methods. Regarding the accuracy of the models, a minimum level of higher than random chance accuracies is needed if the pipeline should be considered to be useful for analyzing and comparing paradigms and methods, while a higher level of having accuracies comparable with state-of-the-art methods will allow for comparisons with paradigms and methods from other research methods as well. In the pipeline, various simple feature extraction methods are tested, such as the Fourier transform (FT) and low pass filtering. As well as features based on covariance between channels and data gradients. A specific way to baseline correct the features is also proposed and tested. The results of the project show that the pipeline method is a viable way of quickly testing and comparing paradigms and methods. With results that are comparable to state of the art methods. While also allowing for quick iteration and comparison. Future possibilities using this method are discussed
22

Relasieterapieteorie : 'n opvoedkundige sielkundige teorie vir diagnose en terapie / The relationship therapy theory : an educational psychological theory for diagnosis and therapy

Pienaar, Emily 11 1900 (has links)
Summaries in Afrikaans and Engish / There is at present a lack of consensus in the Educational Psychological domain to a universal point of departure of a uniform approach for Educational Psychologists. Educational Psychologists have become increasingly aware that the therapy and theories that they use for diagnoses and therapy are not based on educational theories. They frequently fall back on existing psychological schools of thought with the result that very few of the educational theories feature there in. The purpose of this dissertation is therefore: • To devise an accountable educational psychological theory which will lead to the integrating of psychological and educational insights. • To devise diagnostic and research models to create an accountable design in practice. • To utilize the essence of educational psychology educational psychologists for diagnoses and therapy. / Daar bestaan tans in die Opvoedkundige Sielkundige vakgebied 'n gebrek aan konsensus ten opsigte van 'n gemeenskaplike vertrekpunt vir 'n eenheidsbenadering vir opvoedkundige sielkundiges. Opvoedkundige sielkundiges het toenemend daarvan bewus geword dat die terapie en teoriee wat hulle gebruik vir diagnose en terapie nie gebaseer is op opvoedkundige teoriee nie, maar gewoonlik terugval op bestaande sielkundige skole en denkrigtings met die gevolg dat baie min van die opvoedkundige teoriee daarin voorkom. Die doel van die proefskrif is gevolglik om: • 'n Verantwoordbare opvoedkundige sielkundige teorie: "Die Relasieterapieteorie" daar te stel wat sal lei tot die integrering van sielkundige- en opvoedkundige insigte. • Diagnoserings- en navorsingsmodelle daar te stel ten einde 'n verantwoordbare praktykontwerp te skep. • Die Relasieterapieteorie in praktyk te veroperasionaliseer om die opvoedkundige sielkundige essensies in die praktyk in te dra en aan opvoedkundige sielkundiges 'n gemeenskaplike vertrekpunt te gee vir diagnose en terapie. / Psychology of Education / D.Ed. (Sielkundige Opvoedkunde)
23

Relasieterapieteorie : 'n opvoedkundige sielkundige teorie vir diagnose en terapie / The relationship therapy theory : an educational psychological theory for diagnosis and therapy

Pienaar, Emily 11 1900 (has links)
Summaries in Afrikaans and Engish / There is at present a lack of consensus in the Educational Psychological domain to a universal point of departure of a uniform approach for Educational Psychologists. Educational Psychologists have become increasingly aware that the therapy and theories that they use for diagnoses and therapy are not based on educational theories. They frequently fall back on existing psychological schools of thought with the result that very few of the educational theories feature there in. The purpose of this dissertation is therefore: • To devise an accountable educational psychological theory which will lead to the integrating of psychological and educational insights. • To devise diagnostic and research models to create an accountable design in practice. • To utilize the essence of educational psychology educational psychologists for diagnoses and therapy. / Daar bestaan tans in die Opvoedkundige Sielkundige vakgebied 'n gebrek aan konsensus ten opsigte van 'n gemeenskaplike vertrekpunt vir 'n eenheidsbenadering vir opvoedkundige sielkundiges. Opvoedkundige sielkundiges het toenemend daarvan bewus geword dat die terapie en teoriee wat hulle gebruik vir diagnose en terapie nie gebaseer is op opvoedkundige teoriee nie, maar gewoonlik terugval op bestaande sielkundige skole en denkrigtings met die gevolg dat baie min van die opvoedkundige teoriee daarin voorkom. Die doel van die proefskrif is gevolglik om: • 'n Verantwoordbare opvoedkundige sielkundige teorie: "Die Relasieterapieteorie" daar te stel wat sal lei tot die integrering van sielkundige- en opvoedkundige insigte. • Diagnoserings- en navorsingsmodelle daar te stel ten einde 'n verantwoordbare praktykontwerp te skep. • Die Relasieterapieteorie in praktyk te veroperasionaliseer om die opvoedkundige sielkundige essensies in die praktyk in te dra en aan opvoedkundige sielkundiges 'n gemeenskaplike vertrekpunt te gee vir diagnose en terapie. / Psychology of Education / D.Ed. (Sielkundige Opvoedkunde)
24

Lingvistika ve speciální pedagogice / Linguistics in the field of special education

Majerová, Radka January 2016 (has links)
Lingvistika je představena v aplikaci na řešení obtíží u lidí s jazykovým hendikepem, kteří se nacházejí ve speciálně pedagogickém prostředí. Ve výzkumu a rehabilitaci jazykových symptomů se nazývá klinickou lingvistikou. Klinická lingvistika kooperuje v multidisciplinárním kontextu s psycholingvistikou a neurolingvistikou. Práce nastiňuje potřebnost klinické lingvistiky také v českém měřítku. Je analyzována diagnóza vývojová anartrie u celoživotně nemluvících lidí s dětskou mozkovou obrnou. Vývojová anartrie je dosti častou diagnózou ve speciálním školství. Vyjevuje se její nedostatečný popis klinickou logopedií a potřeba její analýzy z klinicko-lingvistického hlediska. U vývojové anartrie je odhaleno druhotné narušení jazykových funkcí, sekundární dysfázie. Sekundární dysfázie u vývojové anartrie se manifestuje na všech jazykových rovinách, práce tuto manifestaci ukazuje. Inteligentní lidé s vývojovou anartrií se ocitají v situaci pozdní akvizice mateřského jazyka, který produkčně uchopují pouze ve formě psané řeči. Mají dílčí percepční obtíže. Fatální nemožnost mluvené produkce jim zapříčiňuje subvokální vnitřně řečový deficit. Je diskutován potenciál těchto lidí osvojovat jazyk v procesu pozdní akvizice, diskuze je uvedena v kontextu světového výzkumu o otázkách maturace a kritických period....
25

CORRELAZIONI TRA SVILUPPO CONCETTUALE NELL'INFANZIA E ACQUISIZIONE DELLA PRIMA LINGUA / Relationships between conceptual development and first language acquisition

VERNICH, LUCA ANTONIO TOMMASO 23 March 2015 (has links)
L'obiettivo del presente lavoro è quello di esaminare criticamente le prospettive teoriche più note sul problema delle relazioni tra sviluppo concettuale del bambino ed acquisizione della prima lingua. Per quanto il lavoro si concentri in particolare sullo sviluppo della componente lessicale, ovvero sul legame tra concetti e apprendimento delle parole con cui gli stessi vengono codificati, verranno necessariamente trattati anche alcuni aspetti relativi alla competenza morfologica e sintattica. Dopo aver presentato sinteticamente le principali teorie proposte nell'ambito della linguistica acquisizionale e della psicologia dello sviluppo, procederemo ad una problematizzazione e discussione dei punti critici delle stesse alla luce dei risultati ottenuti in sede sperimentale negli ultimi anni. Partendo dalla consapevolezza che nell'ambito della linguistica, forse ancor più che in altre discipline, il contrasto tra impostazioni teoriche diverse si traduce spesso in discrepanze significative nell'interpretazione degli stessi dati empirici, abbiamo cercato di dare lo stesso spazio ai vari orientamenti teorici. L'obiettivo di questa tesi, infatti, non è quello di dare giudizi di merito sulla validità di una teoria in quanto tale rispetto ad un'altra, quanto di discutere in modo trasversale i nodi più problematici delle varie teorie e le implicazioni delle stesse. Questo intento è particolarmente evidente nelle conclusioni della tesi, strutturate intorno ad una serie di domande di ricerca. / This work provides a critical overview of the major theoretical perspectives on the relationships between conceptual development and first language acquisition. While our focus is on lexical development (ie. on the relation between learning a word and acquiring the relevant concept), we will also touch on some aspects which pertains more specifically to morphological and syntactical development. After briefly introducing the major theories developed in the field of first language acquisition and developmental psychology, we will discuss them in the light of experimental data collected in recent years. As the same empirical findings tend to be interpreted in completely different ways, in our work we tried to give voice to authors supporting different views. Our goal is not to assess the merits of these theores as such, but to take this comparison as an opportunity to discuss the implications and issues thereof. This will be particularly clear in the Conclusions of our work, which are structured as a series of research questions.

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