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Physiological Data to Analyze and Improve the User Experience
Štěpánek, Daniel ; Beran, Vítězslav (referee) ; Materna, Zdeněk (advisor)
The goal of this thesis is to obtain dataset of physiological data for user emotions in order to analyze and improve human-computer interaction. This paper proposes of the use Empatica wristband to capture physiological data and Python for data processing. After evaluation, 94 % of intact data was obtained from the expected number of samples. Based on the obtained data, it is possible to better analyze the user experience and thus improve it.
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Novel methods for sleep analysis and classification
Navrátilová, Markéta ; Ronzhina, Marina (referee) ; Kolářová, Jana (advisor)
Tato diplomová práce se zabývá metodami pro analýzu a klasifikaci spánku. Popisuje jakjednotlivé spánkové fáze a vzorce biosignálů v průběhu spánku, tak metody pro klasifi-kaci. Příznaky jsou extrahovány na dodaných biosignálech ECG, EDA a RIP. Na základětěchto příznaků jsou klasifikovány jednotlivé spánkové fáze s využitím klasifikátoru ná-hodný les. Parametry klasifikátoru jsou optimalizovány a následně jsou vyhodnocenydosažené výsledky. Pomocí metod pro redukci dimenzionality je soubor příznaků analy-zován a výsledky jsou porovnány s výsledky ze standardní klasifikace. Řešení pro vizuali-zaci jak samotných nezpracovaných signálů, tak extrahovaných příznaků je navrhnuto aimplementováno. Dosažené výsledky jsou porovnány s publikovanými metodami.
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Psychophysiological correlates of emotion and memory
Jindrová, Miroslava ; Telenský, Petr (advisor) ; Vlček, Kamil (referee)
The first aim was to determine the baseline psychophysiological correlates in healthy subjects as a first necessary step towards the long-term goal of application the psychophysiological techniques in diagnostics mood and cognitive disorders. The second aim was to establish an easily applicable set of tests for evaluating emotional and memory processes by non-invasive psychophysiological methods. EEG, GSR, and eye-tracking data from 100 participants without any neurological or psychiatric disorders were obtained during watching affective pictures and performing memory tests. The spectral powers were computed for each 500 ms of the stimuli in theta, alpha, beta1, beta2 and beta3 bands in 12 areas of the brain. Lower alpha and higher beta3 power was related to higher emotional intensity. Negative emotions were distinguished in spatio-temporal changes of beta1 power and positive emotions showed higher beta3 power in right temporal region. Memory encoding showed higher alpha power. Lower theta and higher alpha power in central regions and overall increase of beta bands were observed during successful memory retrieval. A summary of spatio-temporal spectral correlates to emotional and memory processes was provided by this work. Key words: Electroencephalography, electrodermal activity, psychophysiology,...
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Smart Tourism Destination
KOUBOVÁ, Andrea
The theoretical part of this thesis is focused on the explanation of the Smart concept within the cities and tourist destinations, how the destination of Písek uses marketing communication to attract new visitors and to keep the existing ones. In this part, the reader will also be informed about the topic of measuring emotions, what the methods are, their strengths and weaknesses, and specifically how the EDA method (measurement of electrodermal activity, or skin conductivity) works, which was used in the practical part. The aim of thesis is to use new technologies in effective marketing of tourism destinations - based on measurement of emotional reactions using the EDA method, optimalization of visual communication for destination Písek and its surroundings as a city with a Smart city concept. The practical part describes how the questionnaire and measurement by the EDA method took place. During the research the respondents were shown pictures that were taken of Písek and its surroundings. Data processing was done by evaluating the questionnaire and EDA measurements. The results of both research methods were ranked in the Top Ten Positively/Negatively Ranked Images with Higher Emotional Response. Ten positively and ten negatively evaluated questionnaire and EDA measurements are also visualized in this thesis. It can be concluded from the research that the EDA method is suitable for the measurement of emotions and, together with the questionnaire, it provided interesting information on what type of images is suitable to use in the marketing communication of Píseckem, s. r. o.
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The skin conductivity and its use in clinical practice
Javorčeková, Lenka ; Kozumplík, Jiří (referee) ; Nováková, Zuzana (advisor)
The aim of bachelor thesis is to acquaint with the measurement of the skin conductivity and its use in a clinical practice. The applied protocol is based on a current measurement of the skin conductivity in the resting and stressful conditions. The endurance previsions were created through listening to the most favourite and the most unpopular songs. This fact was detected before the measurement on the ground of completed questionnaires.
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Module for Electrodermal Activity recording
Vičar, Tomáš ; Harabiš, Vratislav (referee) ; Bubník, Karel (advisor)
This thesis describes electrodermal activity (EDA) and its origin based on the properties of the skin and thermoregulation of body. EDA is a signal having a close relationship to psychophysiology and its help we can evaluate a variety of emotional, motoric and attentional effects on the human organism. The thesis also discusses the possibility of sensing skin potential and conductatce and how to construct a module for its scanning and uploading to computer.
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Analysis of the galvanic skin response
Caha, Martin ; Chmelař, Milan (referee) ; Ronzhina, Marina (advisor)
This work deals with the analysis of skin conductance for the study of the psychophysiological state of man, with a focus on the change in the level of arousal. It is important to study microsleep events during driving, where there are the changes in alertness and consequently the changes in skin conductivity. The experimental protocol is proposed. Skin conductance analysis is realized in Matlab. This program allows drowing reaction time and measured conductivities and calculating their parameters. These data are used for determination of vigilance level.
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Measurement of the galvanic skin response during repeated stimulus
Fabík, Vojtěch ; Chmelař, Milan (referee) ; Ronzhina, Marina (advisor)
The aim of this work was introducing with the metods of analysis of galvanic skin response. The protocol for measurement of galvanic skin response during repeate stimulus was developed. Several stimulus were included in study. Then the program withgraphical user interface for analysis selected parameters was created in Matlab. Effect of habituation on repeated answers on the stimulus was described. Habituation was analized using parameters derived from electrical skin response.
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Thinking manifested in body
Lukavský, Jiří
In this report we review several methods for indirect monitoring of cognitive activity. Human thinking, concentration and emotional excitement are observable in pupilar changes, electrodermal activity, eye movements or reaction times. The methods are first introduced on general level, then experimental results comparing outputs of each method during Word Association Test are reported.
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Word association test – physiological reactions and semantic similarities
Lukavský, Jiří
His report is focused on physiological reaction measurements during the word association test. The results of preliminary experiment (N=14) are described. In this experiment association responses, physiological reactions (electrodermal activity) and semantic rating of stimuli were recorded. The obtained results may be visualized on individual level as semantic maps combined with electrodermal activity peaks.
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