scholarly journals Fixation durations in scene viewing: Experimental data and computational modeling

2010 ◽  
Vol 8 (6) ◽  
pp. 1107-1107 ◽  
Author(s):  
A. Nuthmann ◽  
T. J. Smith ◽  
J. M. Henderson
Keyword(s):  
Experimental Data ◽  
Computational Modeling ◽  
Fixation Durations ◽  
Scene Viewing

Computational Modeling of Fixation Durations in Scene Viewing

2008 ◽  
Author(s):  
Antje Nuthmann ◽  
Tim J. Smith ◽  
John M. Henderson
Keyword(s):  
Computational Modeling ◽  
Fixation Durations ◽  
Scene Viewing

Circadian clocks and phosphorylation: Insights from computational modeling

2009 ◽  
Vol 4 (3) ◽  
pp. 290-303 ◽  
Author(s):  
Jean-Christophe Leloup
Keyword(s):  
Experimental Data ◽  
Computational Modeling ◽  
Regulatory Mechanism ◽  
Circadian Clocks ◽  
Recent Experimental Data ◽  
Sleep Phase ◽  
Clock Proteins ◽  
High Degree ◽  
Clock Protein

AbstractCircadian clocks are based on a molecular mechanism regulated at the transcriptional, translational and post-translational levels. Recent experimental data unravel a complex role of the phosphorylations in these clocks. In mammals, several kinases play differential roles in the regulation of circadian rhythmicity. A dysfunction in the phosphorylation of one clock protein could lead to sleep disorders such as the Familial Advanced Sleep Phase Disorder, FASPS. Moreover, several drugs are targeting kinases of the circadian clocks and can be used in cancer chronotherapy or to treat mood disorders. In Drosophila, recent experimental observations also revealed a complex role of the phosphorylations. Because of its high degree of homology with mammals, the Drosophila system is of particular interest. In the circadian clock of cyanobacteria, an atypical regulatory mechanism is based only on three clock proteins (KaiA, KaiB, KaiC) and ATP and is sufficient to produce robust temperature-compensated circadian oscillations of KaiC phosphorylation. This review will show how computational modeling has become a powerful and useful tool in investigating the regulatory mechanism of circadian clocks, but also how models can give rise to testable predictions or reveal unexpected results.

scholarly journals Object Frequency and Predictability Effects on Eye Fixation Durations in Real-World Scene Viewing

2010 ◽  
Vol 3 (3) ◽  
Author(s):  
Hsueh-Cheng Wang ◽  
Alex D. Hwang ◽  
Marc Pomplun
Keyword(s):  
Real World ◽  
Latent Semantic Analysis ◽  
Fixation Duration ◽  
Semantic Analysis ◽  
Scene Analysis ◽  
Eye Fixations ◽  
Fixation Durations ◽  
Scene Viewing ◽  
Direction Of Effects ◽  
Text Reading

During text reading, the durations of eye fixations decrease with greater frequency and predictability of the currently fixated word (Rayner, 1998; 2009). However, it has not been tested whether those results also apply to scene viewing. We computed object frequency and predictability from both linguistic and visual scene analysis (LabelMe, Russell et al., 2008), and Latent Semantic Analysis (Landauer et al., 1998) was applied to estimate predictability. In a scene-viewing experiment, we found that, for small objects, linguistics-based frequency, but not scene-based frequency, had effects on first fixation duration, gaze duration, and total time. Both linguistic and scene-based predictability affected total time. Similar to reading, fixation duration decreased with higher frequency and predictability. For large objects, we found the direction of effects to be the inverse of those found in reading studies. These results suggest that the recognition of small objects in scene viewing shares some characteristics with the recognition of words in reading.

scholarly journals Eye movement patterns and visual attention during scene viewing in 3- to 12-month-olds

2016 ◽  
Vol 33 ◽  
Author(s):  
ANDREA HELO ◽  
PIA RÄMÄ ◽  
SEBASTIAN PANNASCH ◽  
DAVID MEARY
Keyword(s):  
Eye Movement ◽  
Movement Patterns ◽  
First Year ◽  
Attentional Processing ◽  
Fixation Durations ◽  
Feature Processing ◽  
Scene Viewing ◽  
Image Inspection ◽  
Object Feature ◽  
First Year Of Life

AbstractRecently, two attentional modes have been associated with specific eye movement patterns during scene processing. Ambient mode, characterized by short fixations and long saccades during early scene inspection, is associated with localization of objects. Focal mode, characterized by longer fixations, is associated with more detailed object feature processing during later inspection phase. The aim of the present study was to investigate the development of these attentional modes. More specifically, we examined whether indications of ambient and focal attention modes are similar in infants and adults. Therefore, we measured eye movements in 3- to 12-months-old infants while exploring visual scenes. Our results show that both adults and 12-month-olds had shorter fixation durations within the first 1.5 s of scene viewing compared with later time phases (>2.5 s); indicating that there was a transition from ambient to focal processing during image inspection. In younger infants, fixation durations between two viewing phases did not differ. Our results suggest that at the end of the first year of life, infants have developed an adult-like scene viewing behavior. The evidence for the existence of distinct attentional processing mechanisms during early infancy furthermore underlines the importance of the concept of the two modes.

scholarly journals Asymmetrical control of fixation durations in scene viewing

2014 ◽  
Vol 100 ◽  
pp. 38-46 ◽  
Author(s):  
R. Calen Walshe ◽  
Antje Nuthmann
Keyword(s):  
Fixation Durations ◽  
Scene Viewing

scholarly journals Fixation durations in natural scene viewing are guided by peripheral scene content

2020 ◽  
Vol 20 (4) ◽  
pp. 15
Author(s):  
Wolfgang Einhäuser ◽  
Charlotte Atzert ◽  
Antje Nuthmann
Keyword(s):  
Natural Scene ◽  
Fixation Durations ◽  
Scene Viewing ◽  
Scene Content
Sign in / Sign up

Export Citation Format

Share Document