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Gaze control and recollective experience in face recognition
Umeå University, Faculty of Social Sciences, Department of Psychology.
Umeå University, Faculty of Social Sciences, Department of Psychology.
2006 (English)In: Visual cognition (Print), ISSN 1350-6285, E-ISSN 1464-0716, Vol. 14, no 3, 365-386 p.Article in journal (Refereed) Published
Abstract [en]

In two experiments, we examined the relation between gaze control and recollective experience in the context of face recognition. In Experiment 1, participants studied a series of faces, while their eye movements were eliminated either during study or test, or both. Subsequently, they made remember/know judgements for each recognized test face. The preclusion of eye movements impaired explicit recollection without affecting familiarity-based recognition. In Experiment 2, participants examined unfamiliar faces under two study conditions (similarity vs. difference judgements), while their eye movements were registered. Similarity vs. difference judgements produced the opposite effects on remember/know responses, with no systematic effects on eye movements. However, face recollection was related to eye movements, so that remember responses were associated with more frequent refixations than know responses. These findings suggest that saccadic eye movements mediate the nature of recollective experience, and that explicit recollection reflects a greater consistency between study and test fixations than familiarity-based face recognition.

Place, publisher, year, edition, pages
Hove: Psychology Press , 2006. Vol. 14, no 3, 365-386 p.
National Category
Psychology
Research subject
Psychology
Identifiers
URN: urn:nbn:se:umu:diva-14027DOI: 10.1080/13506280500347992OAI: oai:DiVA.org:umu-14027DiVA: diva2:153698
Available from: 2007-05-21 Created: 2007-05-21 Last updated: 2011-06-08Bibliographically approved
In thesis
1. Predictive eyes precede retrieval: visual recognition as hypothesis testing
Open this publication in new window or tab >>Predictive eyes precede retrieval: visual recognition as hypothesis testing
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Does visual recognition entail verifying an idea about what is perceived? This question was addressed in the three studies of this thesis. The main hypothesis underlying the investigation was that visual recognition is an active process involving hypothesis testing. Recognition of faces (Study 1), scenes (Study 2) and objects (Study 3) was investigated using eye movement registration as a window on the recognition process. In Study 1, a functional relationship between eye movements and face recognition was established. Restricting the eye movements reduced recognition performance. In addition, perceptual reinstatement as indicated by eye movement consistency across study and test was related to recollective experience at test. Specifically, explicit recollection was related to higher eye movement consistency than familiarity-based recognition and false rejections (Studies 1-2). Furthermore, valid expectations about a forthcoming stimulus scene produced eye movements which were more similar to those of an earlier study episode, compared to invalid expectations (Study 2). In Study 3 participants recognized fragmented objects embedded in nonsense fragments. Around 8 seconds prior to explicit recognition, participants began to fixate the object region rather than a similar control region in the stimulus pictures. Before participants’ indicated awareness of the object, they fixated it with an average of 9 consecutive fixations. Hence, participants were looking at the object as if they had recognized it before they became aware of its identity. Furthermore, prior object information affected eye movement sampling of the stimulus, suggesting that semantic memory was involved in guiding the eyes during object recognition even before the participants were aware of its presence. Collectively, the studies support the view that gaze control is instrumental to visual recognition performance and that visual recognition is an interactive process between memory representation and information sampling.

Place, publisher, year, edition, pages
Umeå: Psykologi, 2007. 58 p.
Series
Umeå studies in cognitive science, ISSN 1654-2568 ; 2
Keyword
declarative memory, face perception, object recognition, scene recognition, eye movements, visual awareness, recollection, familiarity
National Category
Psychology
Identifiers
urn:nbn:se:umu:diva-1179 (URN)978-91-7264-347-5 (ISBN)
Public defence
2007-09-14, NBVH 1031, Norra Beteendevetarhuset, Umeå Universitet, S-901 87, Umeå, 10:15 (English)
Opponent
Supervisors
Available from: 2007-06-12 Created: 2007-06-12 Last updated: 2011-03-08Bibliographically approved

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Mäntylä, TimoHolm, Linus

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Citation style
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