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Self-relevant familiarity effects on object recognition
| Title: | Self-relevant familiarity effects on object recognition: effects of context, location and object's size. |
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| Name(s): |
Daskagianni, Evangelie. Charles E. Schmidt College of Science Department of Psychology |
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| Type of Resource: | text | |
| Genre: | Electronic Thesis Or Dissertation | |
| Date Issued: | 2011 | |
| Publisher: | Florida Atlantic University | |
| Physical Form: | electronic | |
| Extent: | viii, 78 p. : ill. (some col.) | |
| Language(s): | English | |
| Summary: | Recent research in visual object recognition has shown that context can facilitate object recognition. This study assessed the effect of self-relevant familiarity of context in object recognition. Participants performed a task in which they had to recognize degraded objects shown under varying levels of contextual information. The level of degradation at which they could successfully recognize the target object was used as a measure of performance. There were five contextual conditions: (1) no context, (2) context, (3) context and size, (4) context and location, (5) context, size and location. Within each contextual condition, we compared the performance of "Expert" participants who viewed objects in the context of their own house and "Novice" participants who viewed those particular settings for the first time. Ratings were performed to assess each object's consistency, frequency, position consistency, typicality and shape distinctiveness. Object's size was the only contextual info rmation that did not affect performance. Contextual information significantly reduced the amount of bottom-up visual information needed for object identification for both experts and novices. An interaction (Contextual Information x Level of Familiarity) was observed. Expert participants' performance improved significantly more than novice participants' performance by the presence of contextual information. Location information affected the performance of expert participants, only when objects that occupied stable positions were considered. Both expert and novice participants performed better with objects that rated high in typicality and shape distinctiveness. Object's consistency, frequency and position consistency did not seem to affect expert participants' performance but did affect novice participants' performance. | |
| Summary: | A regression analysis model that included Level of Familiarity, Contextual Information Level, Shape and Typical performance. Our results are in accordance with the priming model of visual object recognition. We concluded that a self-relevant context has its own consistency rules and that it affects visual object recognition by narrowing down the number of expectations and the search space significantly more than a non-self-relevant context does. Keywords: visual object recognition, self-relevant familiarity, location, size, probability. | |
| Identifier: | 773278793 (oclc), 3332183 (digitool), FADT3332183 (IID), fau:3767 (fedora) | |
| Note(s): |
by Evangelie Daskagianni. Thesis (Ph.D.)--Florida Atlantic University, 2011. Includes bibliography. Electronic reproduction. Boca Raton, Fla., 2011. Mode of access: World Wide Web. |
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| Subject(s): |
Optical pattern recognition Context effects (Psychology) Visual perception Categorization (Psychology) Recognition (Psychology) Whole and parts (Psycholog) |
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| Persistent Link to This Record: | http://purl.flvc.org/FAU/3332183 | |
| Use and Reproduction: | http://rightsstatements.org/vocab/InC/1.0/ | |
| Host Institution: | FAU |
