This thesis examines the use of computer-mediated communication for lie-detection and interpersonal deceit. The literature within the fields of lie-detection and mediated communication are reviewed and it is proposed that there is a lack of knowledge surrounding how people use CMC to deceive one another. Qualitative research was carried out in order to address this shortcoming, exploring the self-reported experiences of chat room users who have been exposed to online deceit. Reports were provided that describe the misrepresentation of age, gender, vocation, affection, and appearance. The importance of stereotypes in driving suspicions is also emphasised within the reports. It is suggested that this key characteristic has more dominance in CMC than it would do face-to-face because of the occlusion of the traditional nonstrategic clues to deceit. Evidence for an alternative set of nonstrategic leakage clues was examined further by conducting a variant of the Guilty-Knowledge test within the context of a CMC based crime. It was found that participants exhibited a response time inhibition effect when presented with 'guilty knowledge' and that this effect was detectable through a standard two-button mouse. The use of such nonstrategic cues to deceit was explored further in a study that examined how CMC might be used to add additional control to a Statement Validity Assessment truth-validation test. It was found that the content analysis technique used by SVA was unable in its present form to correctly distinguish between truthful and fabricated statements of participants interviewed using a CMC chat program. In addition, it was found that the deletion-behaviours of participants fabricating a story within CMC provided no quantitative or qualitative evidence that they were lying.

Thesis (PhDSocialScience)--University of South Australia, 2005.

Thesis (Ph.D.)--University of Nebraska-Lincoln, 2007. / Title from title screen (site viewed Feb. 4, 2008). "November, 2007." Digitized (PDF) and posted Dec. 2007. Includes bibliographical references (p. 85-94). Also available in paper format.

Thesis (Ph.D.)--University of Nebraska-Lincoln, 2007. / Title from title screen (site viewed May 20, 2008). PDF text: iv, 103 p. : ill. (some col.), maps ; 1 Mb. UMI publication number: AAT 3284212. Includes bibliographical references. Also available in microfilm and microfiche formats.

Diss. Lund. med. / Acta physiologica scandinavica. Vol. 42. Suppl. 146.

Th. 3e cycle--Pharm., chim. biol--Paris 5, 1982. N°: 38.

Made available in DSpace on 2014-06-12T23:00:13Z (GMT). No. of bitstreams: 2 arquivo9130_1.pdf: 1428164 bytes, checksum: 73f1cb334dd746a4945ee290cfff3f6f (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2004 / O objetivo deste trabalho é explicar a construção do espaço virtual na Internet, especificamente em ambientes de chat, a partir de uma abordagem sócio-cultural da psicologia. Através desta abordagem, o espaço virtual foi visto como um espaço relacional em contínua transformação, no qual as pessoas se localizam e localizam as outras em um ambiente computacional. Os ambientes tratados neste estudo são os chats, definidos como recursos da Internet que possibilitam comunicação síncrona entre indivíduos. A partir de releituras do enfoque sócio-cultural, do materialismo dialético e de estudos lingüísticos, bem como da prática de utilização de chats, foi construída uma unidade de análise denominada intercal(ação) de marcadores espaço-virtuais. Esta unidade de análise envolve elementos de localização (basicamente aqueles com uma função dêitica) e seqüências interacionais (em termos de mensagens que possibilitam a construção do espaço), além de estar associada às transformações de expectativas e pressuposições dos participantes do chat. Foram analisados chats com atividades previamente definidas (encontros acadêmicos realizados no contexto da plataforma Virtus, entrevistas on-line e serviços de suporte realizados no Website da UOL) e chats sem uma atividade previamente definida (bate-papos nos sistemas Terra, mIRC, Paltalk e Yahoo Messenger). A análise definiu sete categorias relacionadas às estratégias psicológicas de construção do espaço virtual pelos usuários dos sistemas (conexão, engajamento, emergência, manutenção, imergência, desengajamento e desconexão). Algumas conclusões da análise são: as estratégias psicológicas dos usuários tornaram possível que eles entrassem, permanecessem e saíssem do espaço virtual por meio de elementos dêiticos relacionados aos movimentos virtual-físico e virtual-virtual; os elementos dêiticos têm funções próprias em cada categoria e chats com atividades previamente definidas e sem atividades previamente definidas determinam a construção do espaço virtual bem como o tipo de atividade. Outras contribuições deste trabalho, além da análise de construção do espaço virtual, são as investigações teóricas para o estudo da abordagem sócio-cultural com base em fundamentos do materialismo dialético, o entendimento de como ambientes específicos como aqueles com atividades educacionais têm seu próprio espaço e a compreensão da interface de ambientes computacionais em uso através da observação do processo de construção do espaço virtual

Since conventional audio-video teleconferencing systems have reached their limits, the needs of integrating new sensations to improve users' telecommunication experience are growing. Haptics, the sense of touch, which includes handshake, comforting hug, encouraging pat, and other physical contacts, is of great importance for interpersonal communication, since it allows people to express and receive intimate affection, intention or emotion efficiently. Motivated by a few haptic telecommunication softwares, this thesis presents an innovative webcam-based touchscreen to replace the haptic device, which is used in HugMe system as human hand, to further increase people's degree of immersion with the audio-video-haptic teleconferencing system at a more reasonable price. With our webcam-based touchscreen, the user could directly use his/her bare hand to touch the image of the person who he/she is chatting with, instead of controlling a haptic device as the medium to realize indirect touch. This thesis also gives details of the touchscreen method and our proposed mathematical models for touch position calculation. Experimental results show that our system is accurate and robust, while maintaining high compatibility with conventional audio-video teleconferencing systems for combination. With our haptic jacket, the passive user can feel the touch of the active user at the right position. Also, additional applications with the touchscreen, such as writing and drawing, are developed and tested. Finally, we draw the conclusions and talk about future work.

Thesis (Ph. D.)--University of Missouri-Columbia, 2008. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on June 15, 2009) Vita. Includes bibliographical references.

Thesis (M.A.)--Memorial University of Newfoundland, 2001. / Bibliography: leaves 124-135.