Probing the temporal dynamics of the exploration-exploitation dilemma of eye movements
DC Element | Wert | Sprache |
---|---|---|
dc.contributor.author | Ehinger, Benedikt V. | |
dc.contributor.author | Kaufhold, Lilli | |
dc.contributor.author | Koenig, Peter | |
dc.date.accessioned | 2021-12-23T16:13:09Z | - |
dc.date.available | 2021-12-23T16:13:09Z | - |
dc.date.issued | 2018 | |
dc.identifier.issn | 15347362 | |
dc.identifier.uri | https://osnascholar.ub.uni-osnabrueck.de/handle/unios/10427 | - |
dc.description.abstract | When scanning a visual scene, we are in a constant decision process regarding whether to further exploit the information content at the current fixation or to go on and explore the scene. The balance of these two processes determines the distribution of fixation durations. Using a gaze-contingent paradigm, we experimentally interrupt this process to probe its state. Here, we developed a guided-viewing task where only a single 38 aperture of an image (''bubble'') is displayed. Subjects had to fixate the bubble for an experimentally controlled time (forced fixation time). Then, the previously fixated bubble disappeared, and one to five bubbles emerged at different locations. The subjects freely selected one of these by performing a saccade toward it. By repeating this procedure, the subjects explored the image. We modeled the resulting saccadic reaction times (choice times) from bubble offset to saccade onset using a Bayesian linear mixed model. We observed an exponential decay between the forced fixation time and the choice time: Short fixation durations elicited longer choice times. In trials with multiple bubbles, the choice time increased monotonically with the number of possible future targets. Additionally, we found only weak influences of the saccade amplitude, low-level stimulus properties, and saccade angle on the choice times. The exponential decay of the choice times suggests that the sampling and processing of the current stimulus were exhausted for long fixation durations, biasing toward faster exploration. This observation also shows that the decision process took into account processing demands at the current fixation location. | |
dc.description.sponsorship | European Union through the H FET Proactive Project socSMCs [641321]; Deutsche Forschungsgemeinschaft (DFG)German Research Foundation (DFG); Osnabruck University; [SPP 1665]; The authors thank Jiameng Wu for helping with the data collection and analysis. This work was supported by SPP 1665 and the European Union through the H2020 FET Proactive Project socSMCs (GA no 641321). We acknowledge support by Deutsche Forschungsgemeinschaft (DFG) and Open Access Publishing Fund of Osnabruck University. | |
dc.language.iso | en | |
dc.publisher | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | |
dc.relation.ispartof | JOURNAL OF VISION | |
dc.subject | bubble paradigm | |
dc.subject | COMPUTATIONAL MODEL | |
dc.subject | decision processes | |
dc.subject | exploration-exploitation dilemma | |
dc.subject | FIXATION DURATIONS | |
dc.subject | gaze-contingent | |
dc.subject | INFORMATION | |
dc.subject | NEURAL BASIS | |
dc.subject | Ophthalmology | |
dc.subject | PERCEPTUAL DECISION | |
dc.subject | REACTION-TIME | |
dc.subject | SACCADE GENERATION | |
dc.subject | SALIENCY | |
dc.subject | STIMULUS | |
dc.subject | VISUAL-SEARCH | |
dc.title | Probing the temporal dynamics of the exploration-exploitation dilemma of eye movements | |
dc.type | journal article | |
dc.identifier.doi | 10.1167/18.3.6 | |
dc.identifier.isi | ISI:000427376000006 | |
dc.description.volume | 18 | |
dc.description.issue | 3 | |
dc.contributor.orcid | 0000-0002-6276-3332 | |
dc.contributor.orcid | 0000-0003-3654-5267 | |
dc.contributor.researcherid | W-5954-2018 | |
dc.contributor.researcherid | ABB-2380-2020 | |
dc.publisher.place | 12300 TWINBROOK PARKWAY, ROCKVILLE, MD 20852-1606 USA | |
dcterms.isPartOf.abbreviation | J. Vision | |
dcterms.oaStatus | gold, Green Submitted | |
crisitem.author.dept | Institut für Kognitionswissenschaft | - |
crisitem.author.dept | Institut für Kognitionswissenschaft | - |
crisitem.author.dept | FB 05 - Biologie/Chemie | - |
crisitem.author.deptid | institute28 | - |
crisitem.author.deptid | institute28 | - |
crisitem.author.deptid | fb05 | - |
crisitem.author.orcid | 0000-0003-3654-5267 | - |
crisitem.author.parentorg | FB 08 - Humanwissenschaften | - |
crisitem.author.parentorg | FB 08 - Humanwissenschaften | - |
crisitem.author.parentorg | Universität Osnabrück | - |
crisitem.author.grandparentorg | Universität Osnabrück | - |
crisitem.author.grandparentorg | Universität Osnabrück | - |
crisitem.author.netid | EhBe492 | - |
crisitem.author.netid | KoPe298 | - |
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