Effect of isolated facial feature transformations in a change blindness experiment involving a person as the object of change

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dc.contributor.author Kadosh, Hadar
dc.date.accessioned 2008-05-29T11:21:02Z
dc.date.available 2008-05-29T11:21:02Z
dc.date.issued 2008-05-29T11:21:02Z
dc.identifier.uri http://hdl.handle.net/10539/4901
dc.description.abstract Research has shown that people often fail to notice changes to visual scenes. This phenomenon is known as change blindness. This study investigated the effect of facial feature transformations on change blindness using change detection tasks involving a person as the object of change. 301 participants viewed a photo-story comprised of a few still frames. In the final frame, a selected facial feature of a character in the story was altered. Four different photo-stories were used, each utilising a different alteration. Questionnaires designed to determine whether the change was detected were administered. Results showed that changes to facial features considered to be more salient produced higher levels of change detection. A flicker test using the same images from the photo-story was administered to a further 75 participants and showed a similar pattern of results. It was concluded that in order to detect change, the changing stimuli have to be both salient and meaningful. en
dc.format.extent 4521186 bytes
dc.format.extent 11166 bytes
dc.format.mimetype application/pdf
dc.format.mimetype application/pdf
dc.language.iso en en
dc.subject change blindness en
dc.subject change detection en
dc.subject visual perception en
dc.subject attention en
dc.subject memory en
dc.subject facial features en
dc.subject cue salience en
dc.title Effect of isolated facial feature transformations in a change blindness experiment involving a person as the object of change en
dc.type Thesis en


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    Thesis (Ph.D.)--University of the Witwatersrand, 1972.

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