Show simple item record

dc.contributor.authorRajsic, Jason
dc.contributor.otherQueen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))en
dc.date2011-09-30 14:25:01.967en
dc.date.accessioned2011-09-30T22:39:50Z
dc.date.available2011-09-30T22:39:50Z
dc.date.issued2011-09-30
dc.identifier.urihttp://hdl.handle.net/1974/6805
dc.descriptionThesis (Master, Psychology) -- Queen's University, 2011-09-30 14:25:01.967en
dc.description.abstractRecent evidence suggests that, in addition to improving performance, spatial attention alters the perceptual experience of visual stimuli. We investigated whether two other forms of attention – feature-based attention, and memory-driven attention – also produce an increase in the perceived contrast of stimuli. Perceived contrast was measured by requiring participants to report which of two Gabor stimuli appeared higher in contrast, under different attentional or memory conditions. In Experiment 1, our results indicated that participants indeed allocated attention in a feature-based manner, but no increase in perceived contrast when attending to a given colour was found. Instead, feature-based attention appears to have produced a response bias, such that a stimulus was selected more often when it was attended. In Experiment 2, no change in perceived contrast due to the memory task was observed. A subsequent experiment indicated that our memory task may not have succeeded in causing an attentional shift, which limits the scope of our conclusions on the relationship of memory to perception, but is informative for the development of effective memory manipulations. Overall, our results have provided evidence that the mechanisms of feature-based attention may not be identical to those of spatial attention, but have left the effects of memory-driven attention to be determined.en_US
dc.languageenen
dc.language.isoenen_US
dc.relation.ispartofseriesCanadian thesesen
dc.rightsThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.en
dc.subjectAttentionen_US
dc.subjectMemoryen_US
dc.subjectPsychologyen_US
dc.subjectPerceptionen_US
dc.titleThe Effects of Feature-Based and Memory-Driven Attention on Appearanceen_US
dc.typethesisen_US
dc.description.degreeMasteren
dc.contributor.supervisorWilson, Darylen
dc.contributor.departmentPsychologyen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record