{"id":{"repo_id":"cape-town","oai_identifier":"oai:open.uct.ac.za:11427/6426"},"canonical_url":"https://search.dev.ndltd.org/etd/cape-town/oai:open.uct.ac.za:11427/6426","repository":{"repo_id":"cape-town","name":"University of Cape Town","base_url":"https://open.uct.ac.za/oai/request"},"display":{"title":"A capacity limited, cognitive constructionist model of virtual presence","abstract":"The capacity Limited, Cognitive Constructionist (CLCC) model of presence is proposed as an information processing model of presence, which is demonstrated to have more theoretical power than extant models. The CLCC model defines information processing paths between attention, working memory, declarative memory and procedural memory, which operate to create and maintain a semantic context or bias. Bottom-up information entering the sensory cortices is filtered by attention into working memory where it forms temporary structures encoding the subject's experience of the VE. These structures also receive top-down information, which arises in declarative memory. This interaction of top-down and bottom and bottom-up data gives the entire model a semantic bias which attempts to keep the subject's construction of the environment semantically coherent. This allows for inferences and decision making, which translates into high presence.","abstract_html":"The capacity Limited, Cognitive Constructionist (CLCC) model of presence is proposed as an information processing model of presence, which is demonstrated to have more theoretical power than extant models. The CLCC model defines information processing paths between attention, working memory, declarative memory and procedural memory, which operate to create and maintain a semantic context or bias. Bottom-up information entering the sensory cortices is filtered by attention into working memory where it forms temporary structures encoding the subject's experience of the VE. These structures also receive top-down information, which arises in declarative memory. This interaction of top-down and bottom and bottom-up data gives the entire model a semantic bias which attempts to keep the subject's construction of the environment semantically coherent. This allows for inferences and decision making, which translates into high presence.","abstract_has_math":false,"creators":["Nunez, David"],"institution":"Department of Computer Science","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2007,"date_issued":"2007","date_published":"2007","updated_at":"2026-07-22T22:22:49Z","subjects":[],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11427/6426","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Nunez, David"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2014-08-13T19:31:48Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2014-08-13T19:31:48Z"]},{"key":"dc:date.issued","label":"Date","values":["2007"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Department of Computer Science"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["University of Cape Town"]},{"key":"dc:type","label":"Dc Type","values":["Master Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["Masters"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["MPhil"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11427/6426"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Includes bibliographica references (leaves 285-300)."]},{"key":"dc:description.abstract","label":"Abstract","values":["The capacity Limited, Cognitive Constructionist (CLCC) model of presence is proposed as an information processing model of presence, which is demonstrated to have more theoretical power than extant models. The CLCC model defines information processing paths between attention, working memory, declarative memory and procedural memory, which operate to create and maintain a semantic context or bias. Bottom-up information entering the sensory cortices is filtered by attention into working memory where it forms temporary structures encoding the subject's experience of the VE. These structures also receive top-down information, which arises in declarative memory. This interaction of top-down and bottom and bottom-up data gives the entire model a semantic bias which attempts to keep the subject's construction of the environment semantically coherent. This allows for inferences and decision making, which translates into high presence."]},{"key":"dc:title","label":"Title","values":["A capacity limited, cognitive constructionist model of virtual presence"]}]}],"canonical_facts":{"dc:creator":["Nunez, David"],"dc:date.accessioned":["2014-08-13T19:31:48Z"],"dc:date.available":["2014-08-13T19:31:48Z"],"dc:date.issued":["2007"],"dc:description":["Includes bibliographica references (leaves 285-300)."],"dc:description.abstract":["The capacity Limited, Cognitive Constructionist (CLCC) model of presence is proposed as an information processing model of presence, which is demonstrated to have more theoretical power than extant models. The CLCC model defines information processing paths between attention, working memory, declarative memory and procedural memory, which operate to create and maintain a semantic context or bias. Bottom-up information entering the sensory cortices is filtered by attention into working memory where it forms temporary structures encoding the subject's experience of the VE. These structures also receive top-down information, which arises in declarative memory. This interaction of top-down and bottom and bottom-up data gives the entire model a semantic bias which attempts to keep the subject's construction of the environment semantically coherent. This allows for inferences and decision making, which translates into high presence."],"dc:identifier.uri":["http://hdl.handle.net/11427/6426"],"dc:language.iso":["eng"],"dc:publisher.department":["Department of Computer Science"],"dc:publisher.institution":["University of Cape Town"],"dc:title":["A capacity limited, cognitive constructionist model of virtual presence"],"dc:type":["Master Thesis"],"dc:type.qualificationlevel":["Masters"],"dc:type.qualificationname":["MPhil"]},"updated_at":"2026-07-22T22:22:49Z"}