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Uniform TitleAttention during sequences of saccades along marked and memorized paths
PublisherElsevier Ltd.
NameGersch, Timothy M. (author), Kowler, Eileen (author), Schnitzer, Brian S. (author), Dosher, Barbara Anne (author), National Institutes of Health (U.S.),
Date Created2008
SubjectEye movements,
Orientation discrimination,
Motor control,
Attention,
Movement sequences,
Saccadic eye movements
DescriptionNatural scenes are explored by combinations of saccadic eye movements and shifts of attention. The mechanisms that coordinate attention and saccades during ordinary viewing are not well understood because studies linking saccades and attention have focused mainly on single saccades made in isolation. This study used an orientation discrimination task to examine attention during sequences of saccades made through an array of targets and distractors. Perceptual measures showed that attention was distributed along saccadic paths when the paths were marked by color cues. When paths were followed from memory, attention rarely spread beyond the goal of the upcoming saccade. These different distributions of attention suggest the involvement of separate processes of attentional control during
saccadic planning, one triggered by top-down selection of the saccadic target, and the other by activation linked to visual mechanisms not tied directly to saccadic planning. The concurrent activity of both processes extends the effective attentional field without compromising the accuracy, precision, or timing of saccades.
saccadic planning, one triggered by top-down selection of the saccadic target, and the other by activation linked to visual mechanisms not tied directly to saccadic planning. The concurrent activity of both processes extends the effective attentional field without compromising the accuracy, precision, or timing of saccades.
NoteThe published version of this article is available at: http://www.elsevier.com/locate/visres
NoteGersch, T. M. et al., Attention during sequences of saccades along marked ..., Vision Research (2008)
Notedoi:10.1016/j.visres.2007.10.030
NoteNIH R01 EY15522; to Eileen Kowler
NoteThis research was supported by NIH EY 15522.
Genrearticles
Persistent URLhttp://hdl.rutgers.edu/1782.2/rucore00000001148.Article.17073
LanguageEnglish
CollectionKowler, Eileen Collection
Organization NameRutgers, The State University of New Jersey
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