Journal Article

FZJ-2017-03485

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Switch from ambient to focal processing mode explains the dynamics of free viewing eye movements7

Ito, J. (Corresponding author)FZJ* ; Yamane, Y. ; Suzuki, M. ; Maldonado, P. ; Fujita, I. ; Tamura, H. ; Grün, S.FZJ*

2017
Nature Publishing Group London

This record in other databases:      

Please use a persistent id in citations: http://hdl.handle.net/2128/14373  doi:10.1038/s41598-017-01076-w

Abstract: Previous studies have reported that humans employ ambient and focal modes of visual exploration while they freely view natural scenes. These two modes have been characterized based on eye movement parameters such as saccade amplitude and fixation duration, but not by any visual features of the viewed scenes. Here we propose a new characterization of eye movements during free viewing based on how eyes are moved from and to objects in a visual scene. We applied this characterization to data obtained from freely-viewing macaque monkeys. We show that the analysis based on this characterization gives a direct indication of a behavioral shift from ambient to focal processing mode along the course of free viewing exploration. We further propose a stochastic model of saccade sequence generation incorporating a switch between the two processing modes, which quantitatively reproduces the behavioral features observed in the data.

---

Contributing Institute(s):

1. Computational and Systems Neuroscience (INM-6)
2. Theoretical Neuroscience (IAS-6)
3. Jara-Institut Brain structure-function relationships (INM-10)

Research Program(s):

1. 571 - Connectivity and Activity (POF3-571) (POF3-571)
2. BMBF-01GQ1114 - Einfluss von top-down Signalen auf den autonomen Sehvorgang - Multiskalen Analyse von massiv-parallelen Multi-Area-Daten des visuellen Pfades (BMBF-01GQ1116) (BMBF-01GQ1116)
3. HBP SGA1 - Human Brain Project Specific Grant Agreement 1 (720270) (720270)
4. SMHB - Supercomputing and Modelling for the Human Brain (HGF-SMHB-2013-2017) (HGF-SMHB-2013-2017)

Appears in the scientific report 2017

---

Database coverage:
; ; ; ; BIOSIS Previews ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

---