title: Priorities for selection and representation in natural tasks.
abstract: Selecting and remembering visual information is an active and competitive process. In natural environments, representations are tightly coupled to task. Objects that are task-relevant are remembered better due to a combination of increased selection for fixation and strategic control of encoding and/or retaining viewed information. However, it is not understood how physically manipulating objects when performing a natural task influences priorities for selection and memory. In this study, we compare priorities for selection and memory when actively engaged in a natural task with first-person observation of the same object manipulations. Results suggest that active manipulation of a task-relevant object results in a specific prioritization for object position information compared with other properties and compared with action observation of the same manipulations. Experiment 2 confirms that this spatial prioritization is likely to arise from manipulation rather than differences in spatial representation in real environments and the movies used for action observation. Thus, our findings imply that physical manipulation of task relevant objects results in a specific prioritization of spatial information about task-relevant objects, possibly coupled with strategic de-prioritization of colour memory for irrelevant objects.
authors.affiliation: School of Psychology, University of Dundee, , Dundee DD1 4HN, UK.
authors.forename: Benjamin W
authors.initials: BW
authors.lastname: Tatler
authors.forename: Yoriko
authors.initials: Y
authors.lastname: Hirose
authors.forename: Sarah K
authors.initials: SK
authors.lastname: Finnegan
authors.forename: Riina
authors.initials: R
authors.lastname: Pievilainen
authors.forename: Clare
authors.initials: C
authors.lastname: Kirtley
authors.forename: Alan
authors.initials: A
authors.lastname: Kennedy
mesh_terms: D001288:Attention / Q000502:physiology*; D005403:Fixation, Ocular / Q000502:physiology*; D006801:Humans; D016014:Linear Models; D008568:Memory / Q000502:physiology*; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000502:physiology*; D012606:Scotland; D011795:Surveys and Questionnaires; D013997:Time Factors; D014741:Video Recording; D014796:Visual Perception / Q000502:physiology*
keywords: action; fixation; memory; natural task; priority; video
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