A comunicação humana é essencial para que ocorra um processo de interação social. É através dela que os sujeitos podem manifestar suas vontades, desejos, necessidades, estabelecer trocas que resultam em processos de ensino-aprendizagem e participar ativamente da sociedade, comunidade na qual se encontra inserido realizando trocas recíprocas que propiciam a aquisição do conhecimento historicamente construído. Esta pesquisa teve como foco principal investigar de que de que forma o uso de um sistema de CA que parte de uma perspectiva metodológica sócio-histórica pode promover o desenvolvimento de gestos que propiciam intencionalidade comunicativa em crianças de 03 a 05 anos com autismo. A presente pesquisa cunhou-se como um estudo de caso múltiplo de três sujeitos com autismo, não oralizados, com idades entre 03 e 05 anos de idade. Os resultados a serem apresentados mostram que o sistema SCALA contribuiu como forma constante de mediação integrada ao todo do sujeito. Dessa forma foram surgindo novos gestos, fomos significando cada olhar, apontar, sorrir, morder, etc. Considerando nossos sujeitos como agentes intencionais, deixando-os serem atores nas interações, não somente interagentes passivos, ancorados pelo uso de materiais concretos, que levaram a ligação entre o representacional e o simbólico e, sobretudo nos conduziram a diversos e diferentes momentos de atenção e cenas de atenção conjunta, onde nossos sujeitos participavam de interações triádicas e se incluíam nelas. / Human communication is essential to the occurrence of a social interaction process. It is through it that subjects can express their wishes, desires, needs and establish exchanges that result in teaching-learning processes. And, also, actively participate in society, the community in which they are inserted, conducting reciprocal exchanges that foster the acquisition of historically constructed knowledge. This research main focus was to investigate how the use of a CA system that starts from a sociohistorical methodological perspective can promote the development of gestures that provide communicative intentionality in children 03-05 years old with autism. This research was coined as a multiple case study of three subjects with autism, who do not use oral language, aged between 03 and 05 years of age. The results to be presented show that the SCALA system contributed steadily as integrated mediation into the subject as a whole. Thus new gestures started to arise, we gave meaning to each look, point, laugh, biting, etc. Considering our subjects as intentional agents, leaving them to be actors in interactions, not only passive interacting agents, anchored by the use of concrete materials, which led the connection between the representational and the symbolic and above all led us to several different moments of attention and joint attention scenes where our subjects participated in triadic interactions and included themselves in these interactions.

A comunicação humana é essencial para que ocorra um processo de interação social. É através dela que os sujeitos podem manifestar suas vontades, desejos, necessidades, estabelecer trocas que resultam em processos de ensino-aprendizagem e participar ativamente da sociedade, comunidade na qual se encontra inserido realizando trocas recíprocas que propiciam a aquisição do conhecimento historicamente construído. Esta pesquisa teve como foco principal investigar de que de que forma o uso de um sistema de CA que parte de uma perspectiva metodológica sócio-histórica pode promover o desenvolvimento de gestos que propiciam intencionalidade comunicativa em crianças de 03 a 05 anos com autismo. A presente pesquisa cunhou-se como um estudo de caso múltiplo de três sujeitos com autismo, não oralizados, com idades entre 03 e 05 anos de idade. Os resultados a serem apresentados mostram que o sistema SCALA contribuiu como forma constante de mediação integrada ao todo do sujeito. Dessa forma foram surgindo novos gestos, fomos significando cada olhar, apontar, sorrir, morder, etc. Considerando nossos sujeitos como agentes intencionais, deixando-os serem atores nas interações, não somente interagentes passivos, ancorados pelo uso de materiais concretos, que levaram a ligação entre o representacional e o simbólico e, sobretudo nos conduziram a diversos e diferentes momentos de atenção e cenas de atenção conjunta, onde nossos sujeitos participavam de interações triádicas e se incluíam nelas. / Human communication is essential to the occurrence of a social interaction process. It is through it that subjects can express their wishes, desires, needs and establish exchanges that result in teaching-learning processes. And, also, actively participate in society, the community in which they are inserted, conducting reciprocal exchanges that foster the acquisition of historically constructed knowledge. This research main focus was to investigate how the use of a CA system that starts from a sociohistorical methodological perspective can promote the development of gestures that provide communicative intentionality in children 03-05 years old with autism. This research was coined as a multiple case study of three subjects with autism, who do not use oral language, aged between 03 and 05 years of age. The results to be presented show that the SCALA system contributed steadily as integrated mediation into the subject as a whole. Thus new gestures started to arise, we gave meaning to each look, point, laugh, biting, etc. Considering our subjects as intentional agents, leaving them to be actors in interactions, not only passive interacting agents, anchored by the use of concrete materials, which led the connection between the representational and the symbolic and above all led us to several different moments of attention and joint attention scenes where our subjects participated in triadic interactions and included themselves in these interactions.

A comunicação humana é essencial para que ocorra um processo de interação social. É através dela que os sujeitos podem manifestar suas vontades, desejos, necessidades, estabelecer trocas que resultam em processos de ensino-aprendizagem e participar ativamente da sociedade, comunidade na qual se encontra inserido realizando trocas recíprocas que propiciam a aquisição do conhecimento historicamente construído. Esta pesquisa teve como foco principal investigar de que de que forma o uso de um sistema de CA que parte de uma perspectiva metodológica sócio-histórica pode promover o desenvolvimento de gestos que propiciam intencionalidade comunicativa em crianças de 03 a 05 anos com autismo. A presente pesquisa cunhou-se como um estudo de caso múltiplo de três sujeitos com autismo, não oralizados, com idades entre 03 e 05 anos de idade. Os resultados a serem apresentados mostram que o sistema SCALA contribuiu como forma constante de mediação integrada ao todo do sujeito. Dessa forma foram surgindo novos gestos, fomos significando cada olhar, apontar, sorrir, morder, etc. Considerando nossos sujeitos como agentes intencionais, deixando-os serem atores nas interações, não somente interagentes passivos, ancorados pelo uso de materiais concretos, que levaram a ligação entre o representacional e o simbólico e, sobretudo nos conduziram a diversos e diferentes momentos de atenção e cenas de atenção conjunta, onde nossos sujeitos participavam de interações triádicas e se incluíam nelas. / Human communication is essential to the occurrence of a social interaction process. It is through it that subjects can express their wishes, desires, needs and establish exchanges that result in teaching-learning processes. And, also, actively participate in society, the community in which they are inserted, conducting reciprocal exchanges that foster the acquisition of historically constructed knowledge. This research main focus was to investigate how the use of a CA system that starts from a sociohistorical methodological perspective can promote the development of gestures that provide communicative intentionality in children 03-05 years old with autism. This research was coined as a multiple case study of three subjects with autism, who do not use oral language, aged between 03 and 05 years of age. The results to be presented show that the SCALA system contributed steadily as integrated mediation into the subject as a whole. Thus new gestures started to arise, we gave meaning to each look, point, laugh, biting, etc. Considering our subjects as intentional agents, leaving them to be actors in interactions, not only passive interacting agents, anchored by the use of concrete materials, which led the connection between the representational and the symbolic and above all led us to several different moments of attention and joint attention scenes where our subjects participated in triadic interactions and included themselves in these interactions.

An ongoing research focus in Augmented Reality (AR) is to improve tracking and display technology in order to minimize registration errors between the graphical display and the physical world. However, registration is not always necessary for users to understand the intent of an augmentation, especially in situations where the user and the system have shared semantic knowledge of the environment. I hypothesize that adding appropriate graphical context to an augmentation can ameliorate the effects of registration errors. I establish a theoretical basis supporting the use of context based on perceptual and cognitive psychology. I introduce the notion of Adaptive Intent-Based Augmented Reality (i.e. augmented reality systems that adapt their augmentations to convey the correct intent in a scene based on an estimate of the registration error in the system.) I extend the idea of communicative intent, developed for desktop graphical explanation systems by Seligmann and Feiner (Seligmann &Feiner, 1991), to include graphical context cues, and use this as the basis for the design of a series of example augmentations demonstrating the concept. I show how semantic knowledge of a scene and the intent of an augmentation can be used to generate appropriate graphical context that counters the effects of registration error. I evaluate my hypothesis in two user studies based on a Lego block-placement task. In both studies, a virtual block rendered on a head-worn display shows where to place the next physical block. In the first study, I demonstrate that a user can perform the task effectively in the presence of registration error when graphical context is included. In the second, I demonstrate that a variety of approaches to displaying graphics outside the task space are possible when sufficient graphical context is added.

No description available.

Students in upper secondary school write in a number of different genres, and do this in school contexts as well as in their spare time. The study presented here is an overview of this activity and the genres concerned. The theoretical framework of the study is that of genre theory whereby genre is understood as a socially situated concept. The study is based on 2 000 texts gathered from students on different study programmes all over Sweden in the school year of 1996-97. The texts were written in different situations. The most important distinction made here is between test texts (i.e. texts from national tests) and self-chosen texts, which may come from schoolwriting or spare-time writing. The texts are categorized according to genre. This text inventory shows a repertoire of 33 different genres in the text material. A small number of genres, such as story, book-review and expository essay dominate the school writing. The test genres differ from this pattern in that they clearly imitate texts with a genuine communicative intent. The most frequent genres are studied further and each of them is demonstrated by an interpretative reading. This reading shows that the genres differ considerably with respect to genre character and stability of text structure. A quantitative study of text length and variation in vocabulary further shows that texts written by two categories of students, those on vocationally oriented programmes and those on programmes preparing for higher education, differ significantly. Reference cohesion is studied in a smaller sample of the texts. This lexico-semantic mechanism of cohesion proves to exhibit an interrelation with variation in vocabulary as well as with text type. One particular cohesive tie, inference, shows different patterns in texts written by the two categories of students mentioned above.

No description available.

This research describes the development of communicative intention of young children with cochlear implants in order to study the relationship between the early communicative intention of these children and their later verbal communication. Five children under the age of three years with cochlear implants were selected from the records of the University of Stellenbosch, Tygerberg Academic Hospital’s Cochlear Implant Unit, Cape Town as subjects. Video recordings of each of the five subjects in unstructured free play interaction with their caregivers, before cochlear implantation and each six months after cochlear implantation over a period of two years were used to identify the development of their communicative intention. The Communicative Intention Inventory (Coggins&Carpenter, 1981) was used to classify the communicative behaviour of the subjects according to the types of communication functions that were used, as well as the way in which they expressed the functions of communication. Results of the study show that the development course of the functions of communication that the subjects used over a two-year period, were consistent with the development patterns found in younger children with normal hearing. There was however marked individual differences between the subjects during the transition from nonverbal to dominantly verbal ways of communication as far as the rate of development of verbal communication was concerned. A strong relationship was found among the five subjects regarding the use of the nonverbal communication functions, request for object or action and protest before cochlear implantation and their total verbal communication two years after cochlear implantation, which could account for these individual differences in the rate of verbal communication development after cochlear implantation. Indications for clinical application and future research were identified on the basis of these conclusions. The data collected during the research is seen as meaningful in clinical decision-making regarding the suitability of young children under the age of three years with a profound hearing loss for cochlear implantation and their therapeutic management. / Dissertation (M (Communication Pathology))--University of Pretoria, 2006. / Speech-Language Pathology and Audiology / Unrestricted