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Crowding und die Erscheinungsweisen im peripheren Gesichtsfeld

English title Crowding and appearance in peripheral vision
Applicant Sayim Bilge
Number 163723
Funding scheme SNSF Professorships
Research institution Institut für Psychologie Universität Bern
Institution of higher education University of Berne - BE
Main discipline Psychology
Start/End 01.05.2016 - 30.04.2022
Approved amount 1'526'825.00
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All Disciplines (3)

Discipline
Psychology
Education and learning sciences, subject-specific education
Arts

Keywords (10)

visual perception; psychophysics; spatial vision; crowding; reading; dyslexia; appearance; art; computational models; image processing

Lay Summary (German)

Lead
Zur Wahrnehmung und Handlung in komplexen Umwelten ist der Mensch in hohem Maß auf Informationen aus der visuellen Peripherie angewiesen. Das periphere Sehen wird wesentlich durch das sogenannte 'Crowding' eingeschränkt - dem Phänomen, dass Objekte, die bei isolierter Darbietung leicht erkannt werden, in Kontexten nicht identifiziert werden können. So sind beispielsweise das Lesen, die visuelle Suche, und die Objekterkennung erheblich durch das Crowding eingeschränkt. In diesem Forschungsprogramm werden die Wahrnehmungsleistungen des peripheren Gesichtsfeldes insbesondere im Hinblick auf Crowding untersucht.
Lay summary

Ziele der geplanten Untersuchungen sind eine präzise Charakterisierung des peripheren Sehens, die Entwicklung von Simulationen peripherer Erscheinungsweisen, und die Entwicklung und Implementierung von Methoden zur Verringerung des Crowdings und zur Verbesserung der Leseleistung. Mittels psychophysischer, computationaler und neu entwickelter phänomenologischer Methoden wird - unter anderem in interdisziplinärer Zusammenarbeit mit Künstlern - erforscht, welche Merkmale das visuelle System aus der Peripherie extrahiert und wie diese Extraktionsmechanismen die Diskriminationsleistung, die Erscheinungsweise und Kategorisierung von Objekten bestimmen.

Neben Erkenntnissen in der Grundlagenforschung des räumlichen Sehens, ist die Anwendung der gewonnen Erkenntnisse zur Verbesserung der Leseleistung (insbesondere im Bereich der Dylsexie) ein zentrales Anliegen unserer Forschungsarbeit. Ferner wird eine Sensibilisierung hinsichtlich der Varianz bereits grundlegender Wahrnehmungsleistungen angestrebt, um das Bewusstsein und Verstehen von psychologischen Beeinträchtigungen zu erhöhen.

Direct link to Lay Summary Last update: 15.04.2016

Responsible applicant and co-applicants

Employees

Publications

Publication
Emergent features break the rules of crowding
Melnik Natalia, Coates Daniel R., Sayim Bilge (2020), Emergent features break the rules of crowding, in Scientific Reports, 10(1), 406-406.
Redundancy masking: The loss of repeated items in crowded peripheral vision
Yildirim Fazilet Zeynep, Coates Daniel R., Sayim Bilge (2020), Redundancy masking: The loss of repeated items in crowded peripheral vision, in Journal of Vision, 20(4), 14-14.
Disrupting uniformity: Feature contrasts that reduce crowding interfere with peripheral word recognition
Rummens Koen, Sayim Bilge (2019), Disrupting uniformity: Feature contrasts that reduce crowding interfere with peripheral word recognition, in Vision Research, 161, 25-35.
Letters Lost: Capturing Appearance in Crowded Peripheral Vision Reveals a New Kind of Masking
Sayim Bilge, Taylor Henry (2019), Letters Lost: Capturing Appearance in Crowded Peripheral Vision Reveals a New Kind of Masking, in Psychological Science, 30(7), 1082-1086.
Letters Lost: Capturing Appearance in Crowded Peripheral Vision Reveals a New Kind of Masking
SayimBilge, TaylorHenry (2019), Letters Lost: Capturing Appearance in Crowded Peripheral Vision Reveals a New Kind of Masking, in Psychological Science, May 2019, 1-5.
Emergent features in the crowding zone: When target–flanker grouping surmounts crowding
Melnik Natalia, Coates Daniel R., Sayim Bilge (2018), Emergent features in the crowding zone: When target–flanker grouping surmounts crowding, in Journal of Vision, 18(9), 1-15.
Crowding, attention and consciousness: In support of the inference hypothesis
Taylor Henry, Sayim Bilge (2018), Crowding, attention and consciousness: In support of the inference hypothesis, in Mind & Language, 33(1), 17-33.
Appearance changes and error characteristics in crowding revealed by drawings
Sayim Bilge, Wagemans Johan (2017), Appearance changes and error characteristics in crowding revealed by drawings, in Journal of Vision, 17(11), 8-8.
Variations in crowding, saccadic precision, and spatial localization reveal the shared topology of spatial vision.
Greenwood John A, Szinte Martin, Sayim Bilge, Cavanagh Patrick (2017), Variations in crowding, saccadic precision, and spatial localization reveal the shared topology of spatial vision., in Proceedings of the National Academy of Sciences of the United States of America, 114(17), 3573-3582.
The Other Side of Magic.
Ekroll Vebjørn, Sayim Bilge, Wagemans Johan (2017), The Other Side of Magic., in Perspectives on psychological science : a journal of the Association for Psychological Science, 12(1), 91-106.
Diagnosing the visual periphery: Using the Rey- Osterrieth Complex Figure Test to evaluate peripheral visual function.
Coates DR, Wagemans J, Sayim B (2017), Diagnosing the visual periphery: Using the Rey- Osterrieth Complex Figure Test to evaluate peripheral visual function., in i-perception, 8(3), 1-20.
Perceptual grouping determines haptic contextual modulation.
Overvliet K E, Sayim B (2016), Perceptual grouping determines haptic contextual modulation., in Vision research, 126, 52-8.
What crowds in crowding?
Herzog Michael H, Sayim Bilge, Manassi Mauro, Chicherov Vitaly (2016), What crowds in crowding?, in Journal of vision, 16(11), 25-25.
Disrupting uniformity: Feature contrasts that reduce crowding interfere with peripheral word recognition.
Rummens Koen, Sayim Bilge, Disrupting uniformity: Feature contrasts that reduce crowding interfere with peripheral word recognition., in Vision Research.

Collaboration

Group / person Country
Types of collaboration
Bern University, Department of Psychology Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
University of Birmingham, Department of Philosophy Great Britain and Northern Ireland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
SCALab, University of Lille France (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
University of Kaiserslautern, Cognitive and Developmental Psychology Germany (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
University of Houston, College of Optometry United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Exchange of personnel
Bern University of the Arts Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
16th SPS SGP SSP Conference Poster Spatial compression in redundancy masking 10.09.2019 Bern, Switzerland Coates Daniel R.; Sayim Bilge; Yildirim Fazilet Zeynep;
16th SPS SGP SSP Conference Poster Peripheral appearance in dyslexic readers is characterized by an excessive loss of elements 10.09.2019 Bern, Switzerland Melnik Natalia; Coates Daniel R.; Sayim Bilge;
ECVP 2019 Talk given at a conference What dyslexics see: Excessive information loss characterizes peripheral appearance in dyslexia. 28.08.2019 Leuven, Belgium Coates Daniel R.; Melnik Natalia; Sayim Bilge;
ECVP 2019 Talk given at a conference No help for lost lines: Redundancy masking is strong under focused and diffuse attention 28.08.2019 Leuven, Belgium Coates Daniel R.; Sayim Bilge; Yildirim Fazilet Zeynep;
ECVP 2019 Talk given at a conference Attentional limits in crowding are asymmetric 26.08.2019 Leuven, Belgium Sayim Bilge; Rummens Koen;
VSS 2019 Talk given at a conference Lost lines in warped space: Evidence for spatial compression in crowded displays. 17.05.2019 St. Pete Beach, United States of America Sayim Bilge; Coates Daniel R.; Yildirim Fazilet Zeynep;
VSS 2019 Poster Direct capture of peripheral appearance reveals what is lost and retained in peripheral vision. 17.05.2019 St. Pete Beach, United States of America Sayim Bilge; Melnik Natalia; Coates Daniel R.;
VSS 2019 Poster When detrimental crowding becomes beneficial uniformity in peripheral letter recognition. 17.05.2019 St. Pete Beach, United States of America Sayim Bilge; Rummens Koen;
ECVP 2018 Talk given at a conference Too good to be crowded: A peculiar case of weak crowding with high target-flanker similarity. 26.08.2018 Trieste, Italy Melnik Natalia; Sayim Bilge; Coates Daniel R.;
ECVP 2018 Poster Visual references reverse diminishment in crowding. 26.08.2018 Trieste, Italy Coates Daniel R.; Sayim Bilge; Yildirim Fazilet Zeynep;
ECVP 2018 Talk given at a conference When uncrowding of parts interferes with identifying wholes in peripheral word recognition. 26.08.2018 Trieste, Italy Rummens Koen; Sayim Bilge;
VSAC 2018 Poster Towards a Phenomenology of the Unknown: 'Impossible' Objects in a Contemporary Art Installation. 23.08.2018 Trieste, Italy Sayim Bilge;
GDR Vision Meeting Talk given at a conference Capturing appearance in crowded peripheral vision 11.10.2017 Lille, France Yildirim Fazilet Zeynep; Melnik Natalia; Coates Daniel R.; Sayim Bilge;
ECVP 2017 Poster Creating peripheral shape metamers 27.08.2017 Berlin, Germany Yildirim Fazilet Zeynep; Melnik Natalia; Coates Daniel R.; Sayim Bilge;
European Conference on Visual Perception (ECVP) 2017 Poster Crowding impairs subitizing 27.08.2017 Berlin, Germany Yildirim Fazilet Zeynep; Sayim Bilge; Coates Daniel R.;
ECVP 2017 Poster Emergent features in the crowding zone 27.08.2017 Berlin, Germany Coates Daniel R.; Sayim Bilge; Melnik Natalia;
ECVP 2017 Talk given at a conference Deconstructing peripheral appearance 27.08.2017 Berlin, Germany Melnik Natalia; Yildirim Fazilet Zeynep; Coates Daniel R.; Sayim Bilge;
Visual Science of Art Conference (VSAC) Poster Disambiguation of ambiguous figures in peripheral vision by prior knowledge 25.08.2017 Berlin, Germany Sayim Bilge;


Knowledge transfer events

Active participation

Title Type of contribution Date Place Persons involved
Retreat into Darkness. Towards a Phenomenology of the Unknown Talk 27.06.2017 Berlin, Germany Sayim Bilge;


Abstract

One of the strongest limits of visual perception is 'crowding' - the inability to identify objects in clutter that are easily identified in isolation. For example, a letter presented in the visual periphery, that is easily identified when presented alone, is harder to identify when flanked by other letters. Crowding fundamentally limits numerous tasks such as reading, visual search, and object recognition. In this research program, we use a combination of psychophysics, computational methods, and newly developed appearance-based methods to characterize crowding phenomenology, create simulations of peripheral appearance, and devise methods to alleviate crowding and increase reading performance. We investigate crowding in observer populations that differ in regard to crowding strength, such as normal readers and dyslexics, and closely collaborate with visual artists to shed light on visual appearance, crowding, and the underlying mechanisms of spatial vision.
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