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Free-choice saccades and their underlying determinants: explorations of high-level voluntary oculomotor control
Please always quote using this URN: urn:nbn:de:bvb:20-opus-201493
- Models of eye-movement control distinguish between different control levels, ranging from automatic (bottom-up, stimulus-driven selection) and automatized (based on well-learned routines) to voluntary (top-down, goal-driven selection, e.g., based on instructions). However, one type of voluntary control has yet only been examined in the manual and not in the oculomotor domain, namely free-choice selection among arbitrary targets, that is, targets that are of equal interest from both a bottom-up and top-down processing perspective. Here, we askModels of eye-movement control distinguish between different control levels, ranging from automatic (bottom-up, stimulus-driven selection) and automatized (based on well-learned routines) to voluntary (top-down, goal-driven selection, e.g., based on instructions). However, one type of voluntary control has yet only been examined in the manual and not in the oculomotor domain, namely free-choice selection among arbitrary targets, that is, targets that are of equal interest from both a bottom-up and top-down processing perspective. Here, we ask which features of targets (identity- or location-related) are used to determine such oculomotor free-choice behavior. In two experiments, participants executed a saccade to one of four peripheral targets in three different choice conditions: unconstrained free choice, constrained free choice based on target identity (color), and constrained free choice based on target location. The analysis of choice frequencies revealed that unconstrained free-choice selection closely resembled constrained choice based on target location. The results suggest that free-choice oculomotor control is mainly guided by spatial (location-based) target characteristics. We explain these results by assuming that participants tend to avoid less parsimonious recoding of target-identity representations into spatial codes, the latter being a necessary prerequisite to configure oculomotor commands.…
Author: | Lynn Huestegge, Oliver Herbort, Nora Gosch, Wilfried Kunde, Aleks Pieczykolan |
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URN: | urn:nbn:de:bvb:20-opus-201493 |
Document Type: | Journal article |
Faculties: | Fakultät für Humanwissenschaften (Philos., Psycho., Erziehungs- u. Gesell.-Wissensch.) / Institut für Psychologie |
Language: | English |
Parent Title (English): | Journal of Vision |
Year of Completion: | 2019 |
Volume: | 19 |
Issue: | 3 |
Pagenumber: | 14 |
Source: | Journal of Vision (2019) 19:3, 14. https://doi.org/10.1167/19.3.14 |
DOI: | https://doi.org/10.1167/19.3.14 |
Dewey Decimal Classification: | 1 Philosophie und Psychologie / 15 Psychologie / 150 Psychologie |
Tag: | Adolescent; Adult; Choice Behavior/physiology; Eye Movements/physiology; Female; Humans; Learning/physiology; Male; Oculomotor Muscles/physiology; Photic; Psychomotor Performance/physiology; Saccades/physiology; Stimulation; Young Adult; bottom-up processing; control levels; eye movement; free choice; saccades; top-down processing |
Release Date: | 2020/05/12 |
Collections: | Open-Access-Publikationsfonds / Förderzeitraum 2019 |
Licence (German): | CC BY-NC-ND: Creative-Commons-Lizenz: Namensnennung, Nicht kommerziell, Keine Bearbeitungen 4.0 International |