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J Neurophysiol. 2016 Oct 1;116(4):1592-1602. doi: 10.1152/jn.00171.2016. Epub 2016 Jul 6.

Presaccadic motion integration between current and future retinotopic locations of attended objects.

Author information

1
Allgemeine und Experimentelle Psychologie, Ludwig-Maximilians-Universität München, Munich, Germany; martin.szinte@gmail.com.
2
Allgemeine und Experimentelle Psychologie, Ludwig-Maximilians-Universität München, Munich, Germany.
3
Bernstein Center for Computational Neuroscience and Department of Psychology, Humboldt Universität zu Berlin, Berlin, Germany.
4
Laboratoire Psychologie de la Perception, Université Paris Descartes and Centre National de la Recherche Scientifique (UMR 8242), Paris, France; and Department of Psychological and Brain Sciences, Dartmouth College, Hanover, New Hampshire.

Abstract

Object tracking across eye movements is thought to rely on presaccadic updating of attention between the object's current and its "remapped" location (i.e., the postsaccadic retinotopic location). We report evidence for a bifocal, presaccadic sampling between these two positions. While preparing a saccade, participants viewed four spatially separated random dot kinematograms, one of which was cued by a colored flash. They reported the direction of a coherent motion signal at the cued location while a second signal occurred simultaneously either at the cue's remapped location or at one of several control locations. Motion integration between the signals occurred only when the two motion signals were congruent and were shown at the cue and at its remapped location. This shows that the visual system integrates features between both the current and the future retinotopic locations of an attended object and that such presaccadic sampling is feature specific.

KEYWORDS:

motion integration; remapping; saccade; space constancy

PMID:
27385792
PMCID:
PMC5144701
DOI:
10.1152/jn.00171.2016
[Indexed for MEDLINE]
Free PMC Article

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