ORCID Profile
0000-0002-7742-8123
Current Organisation
Philipps-Universität Marburg
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Publisher: Elsevier BV
Date: 12-2018
Publisher: Association for Research in Vision and Ophthalmology (ARVO)
Date: 17-06-2019
DOI: 10.1167/19.6.17
Publisher: Association for Research in Vision and Ophthalmology (ARVO)
Date: 03-11-2020
DOI: 10.1167/JOV.20.12.2
Publisher: Springer Science and Business Media LLC
Date: 14-02-2022
DOI: 10.1038/S41598-022-06357-7
Abstract: Our environment contains an abundance of objects which humans interact with daily, gathering visual information using sequences of eye-movements to choose which object is best-suited for a particular task. This process is not trivial, and requires a complex strategy where task affordance defines the search strategy, and the estimated precision of the visual information gathered from each object may be used to track perceptual confidence for object selection. This study addresses the fundamental problem of how such visual information is metacognitively represented and used for subsequent behaviour, and reveals a complex interplay between task affordance, visual information gathering, and metacogntive decision making. People fixate higher-utility objects, and most importantly retain metaknowledge about how much information they have gathered about these objects, which is used to guide perceptual report choices. These findings suggest that such metacognitive knowledge is important in situations where decisions are based on information acquired in a temporal sequence.
Publisher: American Physiological Society
Date: 10-2019
Abstract: Across saccades, humans can integrate the low-resolution presaccadic information of an upcoming saccade target with the high-resolution postsaccadic information. There is converging evidence to suggest that transsaccadic integration occurs at the saccade target. However, given ergent evidence on the spatial specificity of related mechanisms such as attention, visual working memory, and remapping, it is unclear whether integration is also possible at locations other than the saccade target. We tested the spatial profile of transsaccadic integration, by testing perceptual performance at six locations around the saccade target and between the saccade target and initial fixation. Results show that integration benefits do not differ between the saccade target and surrounding locations. Transsaccadic integration benefits are not specific to the saccade target and can occur at other locations when they are behaviorally relevant, although there is a trend for worse performance for the location above initial fixation compared with those in the direction of the saccade. This suggests that transsaccadic integration may be a more general mechanism used to reconcile task-relevant pre- and postsaccadic information at attended locations other than the saccade target. NEW & NOTEWORTHY This study shows that integration of pre- and postsaccadic information across saccades is not restricted to the saccade target. We found performance benefits of transsaccadic integration at attended locations other than the saccade target, and these benefits did not differ from those found at the saccade target. This suggests that transsaccadic integration may be a more general mechanism used to reconcile pre- and postsaccadic information at task-relevant locations.
Publisher: Association for Research in Vision and Ophthalmology (ARVO)
Date: 14-10-2020
DOI: 10.1167/JOV.20.10.13
Publisher: Elsevier BV
Date: 2018
No related grants have been discovered for Alexander C Schütz.