This study was designed to investigate the effect of background on the disappearance of luminous figures. The basic observation is the Ditchburn-Riggs effect obtained with stabilized images. Stabilized images of simple visual objects, like straight lines, disappear and reappear rapidly from time to time. Pritchard, Heron, and Hebb (1960) observed that stabilized images of complex figures disappear and reappear in a meaningful fashion. McKinney (1963) demonstrated a similar phenomenon with luminous figures in the darkroom. He observed that luminous figures also tend to disappear and reappear like stabilized images. McKinney showed that there are more disappearances when the figure is steadily viewed than when the eyes are moved along the figures. In a recent paper, Hart (1964) reported that disappearance is greater at the fixation point than at other points. Cohen (1961) found that a stabilized line seemed to disappear less when seen with an adjacent parallel line than when seen alone. [...]
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.116619 |
| Date | January 1964 |
| Creators | Rahman, A. K. M. Abdur. |
| Contributors | Donderi, D. (Supervisor) |
| 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 Psychology.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: NNNNNNNNN, Theses scanned by McGill Library. |
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