{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/72116"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/72116","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Object Segregation in Infancy","abstract":"Six experiments were conducted in order to investigate the development of object segregation in infancy. Infants aged 4 and 8 months were presented with display involving partly occluded and adjacent objects, and the experiments examined which sources of information infants could use to parse the displays. The results indicated that at four months of age, infants are able to make use of at least four sources of knowledge when locating object boundaries: knowledge about the spatial relations between objects, knowledge about the appearance of objects' surfaces, general knowledge about objects, and knowledge gained through previous experiences with objects. Further results indicated that when information about the spatial relations between the surfaces and the appearance of the surfaces yielded conflicting interpretations as to whether the surfaces belonged to the same unit or to different units, 4-month-old infants had an indeterminate percept of the surfaces. In contrast, 8-month-old infants had an unambiguous perception of the scene, driven by the appearance of the surfaces. Final results indicated that, just as 8-month-old infants appear to rank information about appearance above information about the spatial relations between the surfaces, they also seem to attach more importance to adjacent objects' physical properties than to their appearance.","abstract_html":"Six experiments were conducted in order to investigate the development of object segregation in infancy. Infants aged 4 and 8 months were presented with display involving partly occluded and adjacent objects, and the experiments examined which sources of information infants could use to parse the displays. The results indicated that at four months of age, infants are able to make use of at least four sources of knowledge when locating object boundaries: knowledge about the spatial relations between objects, knowledge about the appearance of objects' surfaces, general knowledge about objects, and knowledge gained through previous experiences with objects. Further results indicated that when information about the spatial relations between the surfaces and the appearance of the surfaces yielded conflicting interpretations as to whether the surfaces belonged to the same unit or to different units, 4-month-old infants had an indeterminate percept of the surfaces. In contrast, 8-month-old infants had an unambiguous perception of the scene, driven by the appearance of the surfaces. Final results indicated that, just as 8-month-old infants appear to rank information about appearance above information about the spatial relations between the surfaces, they also seem to attach more importance to adjacent objects' physical properties than to their appearance.","abstract_has_math":false,"creators":["Needham, Amy E."],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Psychology","degree_department":null,"school":null,"contributors":["Baillargeon, R.,"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-12-17T20:25:17Z","date_published":"2014-12-17T20:25:17Z","updated_at":"2026-07-22T22:26:06Z","subjects":["Psychology, Developmental"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(UMI)AAI9305632"],"render_values":[{"text":"(UMI)AAI9305632","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/72116","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Baillargeon, R.,"]},{"key":"dc:creator","label":"Author","values":["Needham, Amy E."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2014-12-17T20:25:17Z","10000-01-01","1992"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Psychology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Psychology, Developmental"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/72116","(UMI)AAI9305632"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Six experiments were conducted in order to investigate the development of object segregation in infancy. Infants aged 4 and 8 months were presented with display involving partly occluded and adjacent objects, and the experiments examined which sources of information infants could use to parse the displays. The results indicated that at four months of age, infants are able to make use of at least four sources of knowledge when locating object boundaries: knowledge about the spatial relations between objects, knowledge about the appearance of objects' surfaces, general knowledge about objects, and knowledge gained through previous experiences with objects. Further results indicated that when information about the spatial relations between the surfaces and the appearance of the surfaces yielded conflicting interpretations as to whether the surfaces belonged to the same unit or to different units, 4-month-old infants had an indeterminate percept of the surfaces. In contrast, 8-month-old infants had an unambiguous perception of the scene, driven by the appearance of the surfaces. Final results indicated that, just as 8-month-old infants appear to rank information about appearance above information about the spatial relations between the surfaces, they also seem to attach more importance to adjacent objects' physical properties than to their appearance.","Made available in DSpace on 2014-12-17T20:25:17Z (GMT). No. of bitstreams: 1 9305632.pdf: 4000460 bytes, checksum: 5f9a86ec7543f9ba47eb5ab52922a6f4 (MD5) Previous issue date: 1992","Embargo set by: Seth Robbins for item 72284 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","100 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1992."]},{"key":"dc:title","label":"Title","values":["Object Segregation in Infancy"]}]}],"canonical_facts":{"dc:contributor":["Baillargeon, R.,"],"dc:creator":["Needham, Amy E."],"dc:date":["2014-12-17T20:25:17Z","10000-01-01","1992"],"dc:description":["Six experiments were conducted in order to investigate the development of object segregation in infancy. Infants aged 4 and 8 months were presented with display involving partly occluded and adjacent objects, and the experiments examined which sources of information infants could use to parse the displays. The results indicated that at four months of age, infants are able to make use of at least four sources of knowledge when locating object boundaries: knowledge about the spatial relations between objects, knowledge about the appearance of objects' surfaces, general knowledge about objects, and knowledge gained through previous experiences with objects. Further results indicated that when information about the spatial relations between the surfaces and the appearance of the surfaces yielded conflicting interpretations as to whether the surfaces belonged to the same unit or to different units, 4-month-old infants had an indeterminate percept of the surfaces. In contrast, 8-month-old infants had an unambiguous perception of the scene, driven by the appearance of the surfaces. Final results indicated that, just as 8-month-old infants appear to rank information about appearance above information about the spatial relations between the surfaces, they also seem to attach more importance to adjacent objects' physical properties than to their appearance.","Made available in DSpace on 2014-12-17T20:25:17Z (GMT). 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