Where do we look next? First steps towards a scan path theory.

Activity: Talk or presentationConference PresentationsResearch

Rainer Höger - Coauthor

Marlene Schlorf - Coauthor

    While viewing pictures a series of eye-movements (saccades) were performed which constitute the so-called scan path. The ideas of how those sequences of fixations are steered by the cognitive system range from saliency based mechanisms up to global and local scanning strategies. The study reported follows the idea that spatial frequency components of image parts influence the sequence of fixations. Within an experiment sinusoidal gratings of different spatial frequencies (0.4 cpd to 7 cpd) were arranged within an image. A series of images in which the position of the different gratings were arranged randomly were shown to 44 participants. Eye-movements were recorded while recipients viewed these compound images. The gaze data were analyzed with regard to the fixation sequence of the different gratings. The results showed that participants tend to fixate gratings with lower spatial frequencies (around 1 cpd) at first. The second glance is merely directed to gratings with much lower spatial frequencies (0.5 cpd) whereas in the following third glance the recipients returned near to the initially inspected frequency band. This finding can be interpreted as a perceptual strategy to inspect at first more global structures. Moreover, before
    the initial frequency band is visited again another frequency band is sought out. This observation looks like a spatial frequency related version of the inhibition of return effect.
    20.08.201824.08.2018

    Event

    34th Annual Meeting of the International Society for Psychophysics: Fechner Day 2018

    20.08.1824.08.18

    Lüneburg, Lower Saxony, Germany

    Event: Conference

    Recently viewed

    Publications

    1. Prozessanalytische Modellierung von Wissenskommunikation in chat-basiertem CSCL
    2. Neighbourhood interactions drive overyielding in mixed-species tree communities
    3. How does economic integration influence employment and wages in border regions?
    4. Contribution of Pollinator-Mediated Crops to Nutrients in the Human Food Supply
    5. Different responses of ant species to sugars and amino acids in a subtropical forest of China 
    6. Review of: Toews, Miriam. 2018. Women Talking. London, UK: Faber & Faber. 216pp., h/c. $24.00.
    7. Mechthild Rumpf, Ute Gerhard, Mechtild M. Jansen (Hrsg.): Facetten islamischer Welten
    8. Exploring plant community assembly for its potential for grassland restoration
    9. Zirkuläre Migration zwischen neuem Policy-Paradigma und "Autonomie der Migration"
    10. Arno Bammé, Geosoziologie. Gesellschaft neu denken. Marburg: Metropolis 2016, 628 S.
    11. The implications of central bank transparency for uncertainty and disagreement
    12. Leaders' ‘Green’ Posts. The Environmental Issues Shared by Politicians on Facebook
    13. Modellierung und Implementierung von Geschäftsprozessen in verteilten Systemen
    14. Psychological interventions to prevent the onset of major depression in adults
    15. Vertrag über die Europäische Union (EUV) : Artikel 27b [Nichtmilitärisches Handeln]
    16. Urban Transdisciplinary Co-study in a Cooperative Multicultural Working Project
    17. Good Practices der digitalen Transformation im öffentlichen Gesundheitsdienst
    18. Cultivation of the heterotrophic microalga Galdieria sulphuraria on food waste
    19. Placing Brazil's grasslands and savannas on the map of science and conservation
    20. From “Decent work and economic growth” to “Sustainable work and economic degrowth”
    21. How young children integrate information sources to infer the meaning of words