The primary purpose of the present study was to examine various aspects of local and global perception in groups of children and young adults with average ages of 6, 8, 10, 12, and 22 years. The aspects examined included developmental differences in RT for local and global visual information, the influence of filtering on global and local perception, and role of distracter congruency and compatibility on processing local and global stimuli. At a general level, the findings revealed that participants processed global faster than local stimuli. With the presence of distracters, 6 and 8-year-old participants demonstrated slower RTs for global targets relative to local targets. Distracter congruency or compatibility did not differentially affect global and local processing. However, congruency did appear to be related to differential performance for 6-year old males versus females. These results indicate that the underlying processes involved in global and local perception may be separate, with global perception relying on attentional mechanisms to a greater extent than local perception.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.30796 |
| Date | January 2000 |
| Creators | Porporino, Mafalda. |
| Contributors | Burack, Jacob A. (advisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Arts (Department of Educational and Counselling Psychology.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001808240, proquestno: MQ70312, Theses scanned by UMI/ProQuest. |
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