5/31/2023 0 Comments Visual paradigm purdueBibliographic references can be found in Section 5. Discussions and conclusions are presented in Section 4. Section 3 thoroughly analyzes the empirical results obtained by research and experiments. In Section 2 the research methodology and the experimental design are presented and discussed. The focus is directed towards the following topics: a) metacognition b) visual attention and c) visualization of websites. In the same section, the objectives of the study are explained and some important arguments are brought forward to justify the development of this research. The dissertation is organized in as follows: First, an introductory section (section 1) presents the topic, including a literature review on already published research and the relevance of the intended study for academic and practical fields. The investigation of human cognition on websites, in which the aspects and factors that draw or call visual attention to the contents brought up through the internet is of extreme importance, is the major objective of this Ph.D. In the Age of Information, a multitude of visual appeals compete to attract the consumer’s attention for a chance to forward their message or idea. Therefore, we suggest that non-goal driven eye movements play a crucial role in maintaining the readiness of the oculomotor system for the next search task. Decoupling of top-down control from the oculomotor system during a rest period induces backward saccades, resulting in fixation around the central part of a display. In this model, the engagement levels of top-down and bottom-up control change along with task difficulty and are affected by the gaze-shift patterns during a visual search task. From these findings, we propose a model describing the oculomotor system in terms of goal-driven and non-goal-driven eye movements. The gaze-shift pattern was affected by the task-difficulty during the task period. Scanning gaze-shift patterns dominated the task period, and backward and corrective-saccade-like gaze-shift patterns dominated the rest period. The results indicate a significant difference between goal-driven eye movements, which were observed in the task period, and non goal - driven eye movements, which were observed in the rest period. We mainly analyzed the gaze-shift patterns in both task and rest periods, in which eye movements were classified in accordance with the angles of saccade directions in two consecutive saccades. During the rest period, the participants were asked to only look at the displays without engaging in any visual or cognitive tasks. In our experiment, participants were asked to perform a visual search task on a display, which was followed by a rest period in which stimuli remained on the display or all stimuli were erased. We investigated the functions and mechanisms of non-goal-driven eye movements, whichĪre defined as eye movements induced when looking at visual stimuli on a display withoutĮngaging in a specific task or looking at a display without any visual stimuli or tasks.
0 Comments
Leave a Reply. |