dc.contributor.authorPatsula, Peter Joseph.en_US
dc.date.accessioned2008-09-10T08:37:10Z
dc.date.available2008-09-10T08:37:10Z
dc.date.copyright2007en_US
dc.date.issued2007
dc.identifier.urihttp://hdl.handle.net/10356/1893
dc.description.abstractGrounded in cognitive load theory, levels of processing theory, the facets of WM framework, and dual-process research, this thesis proposes two theoretical propositions related to mental model production in WM and encoding to LTM. The first proposition, "structure processing," posits a domain-general goal-oriented chunking mechanism that facilitates the coordination of associations made into coherent structures in WM to improve performance and retention. The second proposition of "singularity," posits that information processing in WM is directed towards creating a single coherent and parsimonious episodic model that exerts a low cognitive load. To test these propositions, two studies were conducted to investigate navigation performance and retention of a variety of simple and complex Web-based menus treated with structured or unstructured design. The proposition of singularity was assessed in an analysis of pauses during a menu recall task to estimate the number of chunks needed to recall a menu. Participants were also tested for cognitive abilities necessary for coordination, storage, and supervision. Findings provided strong support that structured design improved menu performance and retention, with weak to moderate correlations with coordination. A strong correlation between retention and number of chunks needed to recall a menu was also found.en_US
dc.rightsNanyang Technological Universityen_US
dc.subjectDRNTU::Library and information science::Libraries::Information storage and retrieval
dc.titleMental model processes in working memory : implications for usability design.en_US
dc.typeThesisen_US
dc.contributor.supervisorDetenber, Benjamin Hill.en_US
dc.contributor.schoolWee Kim Wee School of Communication and Informationen_US
dc.description.degreeDOCTOR OF PHILOSOPHY (SCI)en_US


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