Spatial statistics for gaze patterns in scene viewing
- Scene viewing is used to study attentional selection in complex but still controlled environments. One of the main observations on eye movements during scene viewing is the inhomogeneous distribution of fixation locations: While some parts of an image are fixated by almost all observers and are inspected repeatedly by the same observer, other image parts remain unfixated by observers even after long exploration intervals. Here, we apply spatial point process methods to investigate the relationship between pairs of fixations. More precisely, we use the pair correlation function, a powerful statistical tool, to evaluate dependencies between fixation locations along individual scanpaths. We demonstrate that aggregation of fixation locations within 4 degrees is stronger than expected from chance. Furthermore, the pair correlation function reveals stronger aggregation of fixations when the same image is presented a second time. We use simulations of a dynamical model to show that a narrower spatial attentional span may explain differencesScene viewing is used to study attentional selection in complex but still controlled environments. One of the main observations on eye movements during scene viewing is the inhomogeneous distribution of fixation locations: While some parts of an image are fixated by almost all observers and are inspected repeatedly by the same observer, other image parts remain unfixated by observers even after long exploration intervals. Here, we apply spatial point process methods to investigate the relationship between pairs of fixations. More precisely, we use the pair correlation function, a powerful statistical tool, to evaluate dependencies between fixation locations along individual scanpaths. We demonstrate that aggregation of fixation locations within 4 degrees is stronger than expected from chance. Furthermore, the pair correlation function reveals stronger aggregation of fixations when the same image is presented a second time. We use simulations of a dynamical model to show that a narrower spatial attentional span may explain differences in pair correlations between the first and the second inspection of the same image.…
Verfasserangaben: | Hans Arne TrukenbrodORCiD, Simon BarthelmeORCiD, Felix A. WichmannORCiD, Ralf EngbertORCiDGND |
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DOI: | https://doi.org/10.1167/19.6.5 |
ISSN: | 1534-7362 |
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/31173630 |
Titel des übergeordneten Werks (Englisch): | Journal of vision |
Untertitel (Englisch): | effects of repeated viewing |
Verlag: | Association for Research in Vision and Opthalmology |
Verlagsort: | Rockville |
Publikationstyp: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Datum der Erstveröffentlichung: | 07.06.2019 |
Erscheinungsjahr: | 2019 |
Datum der Freischaltung: | 28.01.2021 |
Freies Schlagwort / Tag: | pair correlation function; scene viewing; spatial correlations |
Band: | 19 |
Ausgabe: | 5 |
Seitenanzahl: | 19 |
Erste Seite: | 1 |
Letzte Seite: | 19 |
Fördernde Institution: | Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)German Research Foundation (DFG) [EN 471/13-1]; Collaborative Research Centre [SFB 1294, B05]; Bundesministerium fur Bildung und Forschung (BMBF) via Bernstein Center for Computational Neuroscience BerlinFederal Ministry of Education & Research (BMBF) [01GQ1001F]; ANR grantFrench National Research Agency (ANR) [ANR-16-CE23-0008] |
Organisationseinheiten: | Humanwissenschaftliche Fakultät / Strukturbereich Kognitionswissenschaften / Department Psychologie |
DDC-Klassifikation: | 1 Philosophie und Psychologie / 15 Psychologie / 150 Psychologie |
Publikationsweg: | Open Access / Gold Open-Access |
Lizenz (Deutsch): | CC-BY-NC-ND - Namensnennung, nicht kommerziell, keine Bearbeitungen 4.0 International |