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Thesis
ATTENTION, VISUAL MEMORY, AND CHANGE BLINDNESS
University of West Florida
Master of Arts (MA), University of West Florida
2012
Abstract
Under normal conditions, individuals effortlessly allocate attention to detect changes in their surroundings due to the motion signals arising from those changes (Becker, Pashler, & Anstis, 2000). However, when visual changes coincide with natural (e.g., eye saccades) or induced visual disruptions (e.g., blank delays between stimuli called interstimulus intervals, or ISIs), these changes often go unnoticed due to a phenomenon called change blindness (Rensink, O'Regan, & Clark, 1997). Outside of the laboratory, existing driving literature has revealed that drivers feel safe glancing away from the road for 0.8 seconds (s) provided they have 3.0 s to view the road between wayward glances (Green, 1999). This experiment examined the role of individual differences in change detection performance across a range of ISIs (i.e., 0 s to 2.0 s) and across possible (e.g., pedestrian changes orientation) and impossible changes (e.g., green stop sign). Change detection accuracy and the mean iterations participants required to detect possible changes declined as the ISI increased, regardless of their working memory capacity or visual short-term memory capacity. The results show glances away from the road should be very brief because all individuals, regardless of working memory capacity, are susceptible to overlooking changes in their surroundings.
Details
- Title
- ATTENTION, VISUAL MEMORY, AND CHANGE BLINDNESS
- Resource Type
- Thesis
- Publisher
- University of West Florida
- Format
- text
- Copyright
- http://rightsstatements.org/vocab/InC-EDU/1.0/
- Identifiers
- 99380090729706600
- Academic Unit
- Psychology
- Language
- English
- Awarding Institution
- University of West Florida; Master of Arts (MA)
- Theses and Dissertations
- Master of Arts (MA), University of West Florida