Sökning: "visual awareness"

Visar resultat 1 - 5 av 83 avhandlingar innehållade orden visual awareness.

  1. 1. Towards Enhancing Awareness in Designing Collaborative Computing Systems

    Författare :Khanh Duy Le; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; social network; Workspace awareness; vibro-tactile feedback; Contextual awareness; Social awareness; distributed creative group work; tabletop; Awareness; Collaboration;

    Sammanfattning : Awareness is critical to the success of collaborative activities. User awareness (from here on: awareness) is a system’s capacity to provide comprehensible and appropriate communication cues from one user to the other users of the same system. LÄS MER

  3. 2. Investigations of neural attractor dynamics in human visual awareness

    Författare :David N. Silverstein; Pawel Herman; Martin Ingvar; Karl Friston; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; attractor dynamics; visual awareness; visual perception; visual attention; attentional blink; backward masking; gliomas; brain tumor; white matter; cell assemblies; neocortical model; threat response; fear signaling; amygdala; Biological Physics; Biologisk fysik; Computer Science; Datalogi; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

    Sammanfattning : What we see, how we see it and what emotions may arise from stimuli has long been studied by philosophers, psychologists, medical doctors and neuroscientists. This thesis work investigates a particular view on the possible dynamics, utilizing computational models of spiking neural attractor networks. LÄS MER

  4. 3. Guided by Fear : Effects on attention and awareness

    Författare :Nathalie Peira; Stefan Wiens; Nazanin Derakhshan; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Emotion; fear; attention; awareness; affective processing; heart rate; skin conductance; Psychology; Psykologi; Psychology; psykologi;

    Sammanfattning : Because the visual system has limited capacity, emotions such as fear may play an important role in guiding the selection of relevant input (LeDoux, 2000; Öhman & Mineka, 2001). The aim of the current thesis was to investigate how fear can guide the organism by influencing:  (I) attentional processes, (II) awareness of the visual input, and (III) affective processing independent of awareness. LÄS MER

  5. 4. Predictive eyes precede retrieval : visual recognition as hypothesis testing

    Författare :Linus Holm; Timo Mäntylä; Lars Nyberg; David Melcher; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; declarative memory; face perception; object recognition; scene recognition; eye movements; visual awareness; recollection; familiarity; Psychology; Psykologi;

    Sammanfattning : Does visual recognition entail verifying an idea about what is perceived? This question was addressed in the three studies of this thesis. The main hypothesis underlying the investigation was that visual recognition is an active process involving hypothesis testing. LÄS MER

  7. 5. Change Detection of the Unexpected : Enhancing change detection of the unexpected in a complex and high risk context – guiding visual attention in a digital display environment

    Författare :Ulrik Spak; Else Nygren; Patrik Sörqvist; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; awareness; change blindness; change detection; command and control; display; feedback; human-computer interaction; inattentional blindness; monitoring; surveillance; visual cue; Människa-dator interaktion; Human-Computer Interaction; Ledningsvetenskap;

    Sammanfattning : Change detection of objects and events in our visual surroundings is sometimes severely difficult, especially if these changes are unexpected. Such failures in change detection may cause huge malicious outcomes in contexts characterized by high levels of complexity and risk. LÄS MER