<p>Artificial intelligence (AI) is already a fundamental component of computer games. In this context is emotions a growing part in simulating real life. The proposed emotional state module, provides a way for the game agents to select an action in real-time virtual environments. The modules function has been tested with the open-source strategy game ORTS. This thesis proposes a new approach for the design of an interacting network, similar to a spreading activation system, of emotional states that keeps track of emotion intensities changing and interacting over time. The network of emotions can represent any number of persisting states, such as moods, emotions and drives. Any emotional signal can affect every state positively or negatively. The states' response to emotional signals are influenced by the other states represented in the network. The network is contained within an emotional state module. This interactions between emotions are not the focus of much research, neither is the representation model. The focus tend to be on the mechanisms eliciting emotions and on how to express the emotions.</p>

This study aims at examining in detail the linguistic characteristics of sentential idioms (‘idiomatische Sätze’, IS) in German, e.g. Das kannst du dir an den Hut stecken.; Du hast wohl Tomaten auf den Augen!; Da lachen ja die Hühner!. In theoretically and empirically investigating their syntactic, semantic and pragmatic features and productive potential, it is shown that IS can only be described properly by looking at the interfaces between syntax, semantics, and pragmatics, and by systematically investigating pattern formation. In this respect, the study goes far beyond traditional phraseological research. As a theoretical background, the study refers to research on phraseology, sentence types and sentence mood, linguistic evaluation, morphological productivity, and the frameworks of Construction Grammar and Relevance Theory. Empirical evidence comes from a large corpus of written German, a linguistic experiment on productivity, and introspective data. With respect to syntax, the study shows that IS are bound to one or a few different sentence types, varying according to the degree of restriction of their speech act potential. The complex semantics of IS is shown to consist not only of a literal and an idiomatic, but also of a third, mediating representational level. The idiomatic meaning of IS is described as evaluative meaning. Pragmatically, IS are dependent on special contextual environments to obtain a proper interpretation. A context model is developed which makes use of certain categories of evaluation. Moreover, a relevance-theoretic approach is sketched in order to explain which functional advantages IS might have compared to non-idiomatic utterances. With respect to productivity, ten different idiomatic patterns of construction are identified and described in detail. It is experimentally demonstrated that these patterns are productive to a greater or lesser degree dependent on their internal syntactic, lexical, semantic and pragmatic features.

This thesis explores, through a number of production andperception studies, the nature of the voice source signal andhow it varies in spoken communication. Research is alsopresented that deals with the techniques and methodologies foranalysing and synthesising the voice source. The main analytictechnique involves interactive inverse filtering for obtainingthe source signal, which is then parameterised to permit thequantification of source characteristics. The parameterisationis carried by means of model matching, using the four-parameterLF model of differentiated glottal flow. The first three analytic studies focus on segmental andsuprasegmental determinants of source variation. As part of theprosodic variation of utterances, focal stress shows for theglottal excitation an enhancement between the stressed voweland the surrounding consonants. At a segmental level, the voicesource characteristics of a vowel show potentially majordifferences as a function of the voiced/voiceless nature of anadjacent stop. Cross-language differences in the extent anddirectionality of the observed effects suggest differentunderlying control strategies in terms of the timing of thelaryngeal and supralaryngeal gestures, as well as in thelaryngeal tensions settings. Different classes of voicedconsonants also show differences in source characteristics:here the differences are likely to be passive consequences ofthe aerodynamic conditions that are inherent to the consonants.Two further analytic studies present voice source correlatesfor six different voice qualities as defined by Laver'sclassification system. Data from stressed and unstressedcontexts clearly show that the transformation from one voicequality to another does not simply involve global changes ofthe source parameters. As well as providing insights into theseaspects of speech production, the analytic studies providequantitative measures useful in technology applications,particularly in speech synthesis. The perceptual experiments use the LF source implementationin the KLSYN88 synthesiser to test some of the analytic resultsand to harness them to explore the paralinguistic dimension ofspeech communication. A study of the perceptual salience ofdifferent parameters associated with breathy voice indicatesthat the source spectral slope is critically important andthat, surprisingly, aspiration noise contributes relativelylittle. Further perceptual tests using stimuli with differentvoice qualities explore the mapping between voice quality andits paralinguistic function of expressing emotion, mood andattitude. The results of these studies highlight the crucialrole of voice quality in expressing affect as well as providingpointers to how it combines withf0for this purpose. The last section of the thesis focuses on the techniquesused for the analysis and synthesis of the source. Asemi-automatic method for inverse filtering is presented, whichis novel in that it optimises the inverse filter by exploitingthe knowledge that is typically used by the experimenter whencarrying out manual interactive inverse filtering. A furtherstudy looks at the properties of the modified LF model in theKLSYN88 synthesiser: it highlights how it differs from thestandard LF model and discusses the implications forsynthesising the glottal source signal from LF model data.Effective and robust source parameterisation for the analysisof voice quality is the topic of the final paper: theeffectiveness of global, amplitude-based, source parameters isexamined across speech tokens with large differences inf0. Additional amplitude-based parameters areproposed to enable a more detailed characterisation of theglottal pulse. <b>Keywords:</b>Voice source dynamics, glottal sourceparameters, source-filter interaction, voice quality,phonation, perception, affect, emotion, mood, attitude,paralinguistic, inverse filtering, knowledge-based, formantsynthesis, LF model, fundamental frequency,f0.

Background: Estrogen has been reported to enhance well-being and quality of life during the climacteric phase. In women with an intact uterus estrogen treatment is always combined with progestins in order to protect the endometrium from hyperplasia and malignancies. However, in certain women the addition of progestins causes cyclicity in negative mood symptoms and physical symptoms similar to those encountered during ovulatory cycles in women with premenstrual dysphoric disorder (PMDD). The ovarian hormones estradiol and progesterone have profound effects on a number of neurotransmitter systems in the brain, such as the gamma aminobutyric acid (GABA) system and the serotonergic system. Progesterone metabolites, such as allopregnanolone and pregnanolone (also referred to as neurosteroids) modify the GABAA receptor in the central nervous system (CNS) and enhance GABAergic inhibitory transmission. Neurosteroid sensitivity in human studies can be studied by saccadic eye movement measurements using pharmacodynamic challenges with pregnanolone. Altered neurosteroid sensitivity has been suggested as a possible contributory factor to the progesterone/progestin-induced adverse mood effects of hormone replacement therapy (HRT). There is also evidence of estrogen treatment affecting the serotonergic system in postmenopausal women, although progestin addition has been less well studied. Aims and method: The aim was to investigate whether the negative mood symptoms experienced during the progestin or progesterone phase of HRT were associated with changes in neurosteroid sensitivity, or changes in platelet serotonin uptake site (transporter) and serotonin2A (5-HT2A) receptor binding. The intention was also to investigate whether hormonal changes during the normal menstrual cycle affect these peripheral serotonergic parameters. Postmenopausal women with climacteric symptoms were given HRT in two randomized, double-blinded, placebo-controlled crossover studies. The women received 2 mg estradiol (E2) continuously during 28- day cycles. Synthetic progestins or natural progesterone were added sequentially during the last 14 days, and compared to a placebo addition. Before treatment, as well as during the last week of each treatment cycle the pharmacodynamic response to pregnanolone was assessed using saccadic eye movement measurements. Throughout the studies daily symptom ratings were made. In the study regarding synthetic progestins, platelet serotonin transporter and 5-HT2A receptor binding were assayed before entering the study, as well as during the last week of each treatment cycle. In the study on reproductive women, blood samples were collected for analysis of platelet serotonin transporter and 5-HT2A receptor binding at six different points in time during the menstrual cycle. Results and conclusion: The addition of synthetic progestins to estrogen treatment increased negative mood symptoms and physical symptoms, whereas positive symptoms decreased. The addition of progestins also increased the sensitivity to pregnanolone. The addition of natural progesterone to estrogen treatment increased the sensitivity to pregnanolone. However, in this study the pregnanolone sensitivity was enhanced also during estrogen treatment. Women expressing cyclicity in negative mood symptoms were more sensitive to pregnanolone than women without symptom cyclicity. Thus, it is evident that mood deterioration during HRT is associated with altered neurosteroid sensitivity. Platelet serotonin transporter and 5-HT2A receptor binding did not change during the different treatment conditions in HRT. Thus, we were unable to explain the negative mood changes of HRT by use of these peripheral serotonergic parameters. In the study on reproductive women however, it was clear that the serotonergic variables did change during the menstrual cycle. Binding to the serotonin transporter was higher in the late follicular phase than in the ovulatory, early luteal or mid-luteal phases. Binding to the 5-HT2A receptor was higher in the early follicular phase and the early luteal phase than in the mid-luteal phase. These findings may provide a link between the ovarian steroids, and the GABAergic and serotonergic neurotransmitter systems, which in turn, could explain part of the specific vulnerability that women have for the development of adverse mood effects during HRT, mood and anxiety disorders and for the deterioration of mood so frequently seen during the luteal phase.

Background Affective disorders are poorly defined and studied in sub-Saharan Africa despite their substantial public health impact. Objectives Overall objective: To describe the epidemiology of selected affective disorders in rural Ethiopia. Specific objectives 1. To describe the validity and utility of the concept of minor depressive disorder (mD). 2. To describe the manifestation, prevalence and the short-term clinical and functional course and outcome of bipolar disorder. Subjects and methods Population: Zay community residents (age ≥16), and residents of Butajira (ages 15-49), in Southern Ethiopia. Study design: Population-based cross-sectional and longitudinal studies Case identification: For the identification of cases with bipolar disorder, a two stage process was employed. An initial screen used key informants and interview with the Composite International Diagnostic Interview (CIDI) to identify cases with probable bipolar disorder. A second confirmatory diagnostic assessment stage employed the Schedules for Clinical Assessment in Neuropsychiatry (SCAN). For the identification of cases with mD, data from the CIDI was used. Follow-up: 312 cases with bipolar disorder from Butajira were followed up for a mean of 2.5 years (ranging 1-4 years) through monthly clinical assessments and annual symptom and functional ratings. Results The CIDI was administered to 1714 adults among the Zay and to 68, 378 adults among the Butajira residents. The prevalence of mD among the Zay and Butajira was 20.5% and 2.2% respectively. Up to 80% of cases with mD had used services for their symptoms, while a third to a half of cases had thought about self harm. Up to a sixth of cases had attempted suicide. Age, marital status, education and somatic symptoms were independently associated with mD. The prevalence of bipolar disorder among the Zay was 1.8%. During a 2.5-year follow-up of 312 cases with bipolar disorder from Butajira, 65.9% relapsed (47.8% manic, 44.3% depressive and 7.7% mixed episodes) while 31.1% experienced persistent illness. Female gender predicted depressive relapse whereas male gender predicted manic relapse. Only being on psychotropic medication predicted remission (OR=3.42; 95% CI=1.82, 6.45). Disability was much worse among bipolar patients than in the general population and was predicted by symptom se3verity. Conclusions This is the largest study on mD and bipolar disorder in Africa. mD appears to have potential clinical utility in this setting given its association with service use and risk. The identified risk factors for mD also suggest potential aetiological continuity with major depression. The relatively high prevalence of bipolar disorder among the Zay may be related to genetic predisposition perhaps mediated through a founder effect, but other factors need exploring. In relation to the outcome of bipolar disorder, this study indicates that, contrary to previous assumptions, the course of bipolar disorder is characterised by both manic and depressive relapses in a relatively proportionate fashion. Bipolar disorder also leads to significant levels of disability. This is the only prospective outcome study of bipolar disorder in Africa where cases were monitored systematically at short assessment intervals. Therefore, findings are likely to be more robust than previous reports.

Students with Attention-Deficit/Hyperactivity Disorder (ADHD) are usually inattentive and disruptive in class, are at high risk for chronic academic achievement difficulties, and may develop problems in relationships with peers, parents, and teachers (DuPaul, Stoner, 2003). One of the primary goals of behavioural treatment for ADHD is to enable a student to develop adequate levels of self-control (Barkley, 1990; DuPaul & Stoner, 1994). Methods are needed in the classroom, which give the child or adolescent with ADHD, control over his or her condition and thus increased independence, more experiences with success, and increased resiliency. Listening to music has many therapeutic applications, including the development of cognitive skills such as attention and memory (Canadian Association for Music Therapy, 2006). Music is accessible to all teachers and students, and is an easy strategy to implement in classrooms. Yet, despite the knowledge that adolescents are active users of music media (North, Hargreaves, & ONeill, 2000), little research on music and ADHD participants has been completed. Through the use of a single subject case study, the purpose of this research was: look at the academic experience that an adolescent male diagnosed with ADHD faced in his life at school; and to gain a better understanding of how music could potentially affect his ability to self-regulate and cope with the detrimental effects of ADHD during in-class seat work and homework. Multiple interviews with one boy, his parents, and teachers across a 14-week period of time provided a primary source of data. Results indicated that the adolescents experiences with listening to music during school and homework increased the time that he was able to attend and concentrate. Unexpected gains included an increase in his ability to recall information during exams, and an increase in motivation, positive attitude, and mood towards school work as a result of enjoying listening to his favourite music. However, the study also involved the unexpected and disheartening discovery of clashing and competing voices that perhaps ultimately rendered the boys positive experiences with music insignificant, given the louder rule-and-order school culture. The pragmatic realities of working within a school context will need to be considered and strategically addressed if students are to benefit from practices that help even though they may be unconventional and not fully understood.

Subjects participating in magnetic resonance imaging (MRI) examinations regularly report anxiety and stress related reactions. This may result in impaired data quality and premature termination of scans. Moreover, cognitive functions and neural substrates can be altered by stress. While prior studies investigated pre–post scan differences in stress reactions only, the present study provides an in-depth analysis of mood changes and hormonal fluctuations during the time course of a typical fMRI session. Thirty-nine subjects participated in the study. Subjective mood, salivary alpha-amylase (sAA) and cortisol were assessed at six time points during the lab visit. Associations between hormonal data and neural correlates of a visual detection task were observed using a region of interest approach applied to the thalamic region. Mood and hormonal levels changed significantly during the experiment. Subjects were most nervous immediately after entering the scanner. SAA was significantly elevated after MRI preparation. A subgroup of n = 5 (12.8%) subjects showed pronounced cortisol responses exceeding 2.5 nmol/l. Preliminary fMRI data revealed an association between sAA levels and left thalamic activity during the first half of the experiment that disappeared during the second half. No significant correlation between cortisol and thalamic activity was observed. Results indicate that an fMRI experiment may elicit subjective and neuroendocrine stress reactions that can influence functional activation patterns.

Students with Attention-Deficit/Hyperactivity Disorder (ADHD) are usually inattentive and disruptive in class, are at high risk for chronic academic achievement difficulties, and may develop problems in relationships with peers, parents, and teachers (DuPaul, Stoner, 2003). One of the primary goals of behavioural treatment for ADHD is to enable a student to develop adequate levels of self-control (Barkley, 1990; DuPaul & Stoner, 1994). Methods are needed in the classroom, which give the child or adolescent with ADHD, control over his or her condition and thus increased independence, more experiences with success, and increased resiliency. Listening to music has many therapeutic applications, including the development of cognitive skills such as attention and memory (Canadian Association for Music Therapy, 2006). Music is accessible to all teachers and students, and is an easy strategy to implement in classrooms. Yet, despite the knowledge that adolescents are active users of music media (North, Hargreaves, & ONeill, 2000), little research on music and ADHD participants has been completed. Through the use of a single subject case study, the purpose of this research was: look at the academic experience that an adolescent male diagnosed with ADHD faced in his life at school; and to gain a better understanding of how music could potentially affect his ability to self-regulate and cope with the detrimental effects of ADHD during in-class seat work and homework. Multiple interviews with one boy, his parents, and teachers across a 14-week period of time provided a primary source of data. Results indicated that the adolescents experiences with listening to music during school and homework increased the time that he was able to attend and concentrate. Unexpected gains included an increase in his ability to recall information during exams, and an increase in motivation, positive attitude, and mood towards school work as a result of enjoying listening to his favourite music. However, the study also involved the unexpected and disheartening discovery of clashing and competing voices that perhaps ultimately rendered the boys positive experiences with music insignificant, given the louder rule-and-order school culture. The pragmatic realities of working within a school context will need to be considered and strategically addressed if students are to benefit from practices that help even though they may be unconventional and not fully understood.

The main aim of this study, in which 310 university students participated, is to investigate whether or not computer interfaces offering human-like apologetic error messages influence users&rsquo / self-appraisals of performances and actual performances in the computerized environment. For the study, an online instructional material which includes deliberate design problems leading to user frustration was developed. The study is comprised of three phases. In the first phase, based on the CCSARP (Cross-Cultural Study of Speech Act Realization Patterns) coding manual and the studies conducted with the framework provided by the manual, apology strategy sequences were elicited from Turkish participants. Two of these apology strategy sequences were selected for producing two apology error messages. In addition to these apology messages, one plain computer error message was also developed for experimental control. The second phase of the study was conducted to determine whether these three messages were perceived as apologies. It was found out that the two apology messages were perceived as apologies and the plain computer message was not perceived as an apology. In the third phase these three messages were used to investigate the relationship between mood, self-appraisal of performance and actual performance after the transmission of the apologetic error messages. The findings of this study show that the frequencies of apology strategies preferred in the computerized environment are similar with those utilized in the social context. Statistical analyses also reveal that the influence of apology messages on self-appraisal of performance depends on participants&rsquo / mood state and the contents of the apology messages.

Ausgehend von der Frage nach der Funktionsrelevanz des Konjunktivs als Anzeiger für 'Indirekte Rede' wird in einem zweiten Schritt das modale Funktionspotential von Indikativ, Konjunktiv I und II im Spannungsfeld von Sprachnorm, Sprachvariation und Sprachsystem diskutiert. Im Fokus stehen dabei die so genannte 'Berichtete Rede' und abhängige Verbletztsätze. Die anschließende empirische Untersuchung erhebt mittels speziell entwickelter Lückensätze, inwieweit mit der Modusverwendung in beiden Strukturen textsortenstilistische Empfehlungen und textgrammatische Regeln befolgt werden. Eine zusätzliche Befragung zielt darauf ab, ob ein Zusammenhang zwischen der Verwendung einer Modusform und dem Ausdruck einer Sprechereinstellung (Zustimmung, Neutralität, Skepsis und Ablehnung) zum Wahrheitsgehalt der wiedergegebenen Information feststellbar ist. Die statistische Auswertung ergibt einerseits, dass die Mehrheit sowohl der nichtmuttersprachlichen, als auch der muttersprachlichen Studierenden die wiedergegebene fremde Rede entweder gar nicht oder nicht konsequent als solche kenntlich macht und damit gegen die Wahrung geistigen Eigentums verstößt. Andererseits führt auch die Beobachtung eines häufig unsystematischen Modusformengebrauchs in beiden Probandengruppen nicht zum Nachweis, dass mit diesen grammatischen Mitteln mehrheitlich spezifische Sprechereinstellungen ausgedrückt würden.