English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Book Chapter

When Does the Brain Respond to Information During Visual Scanning?

MPS-Authors
/persons/resource/persons192889

Flad,  N
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons83839

Bülthoff,  HH
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons83861

Chuang,  LL
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Flad, N., Bülthoff, H., & Chuang, L. (2019). When Does the Brain Respond to Information During Visual Scanning? In H. Ayaz, & F. Dehais (Eds.), Neuroergonomics: the brain at work and in everyday life (pp. 267-268). London, UK: Elsevier, Academic Press. doi:10.1016/B978-0-12-811926-6.00068-3.


Cite as: https://hdl.handle.net/21.11116/0000-0003-367F-3
Abstract
High-stress work environments, such as a flight deck or surveillance systems, provide operators with multiple instruments that have to be monitored constantly using eye movements. Eye tracking allows us to infer when an operator’s overt attention is devoted to an instrument, namely when fixation begins. It is commonly assumed that fixating a visual stimulus equates its processing. In this study, we use an electroencephalogram (EEG) to demonstrate that visual perception, hence processing, can take place even prior to fixation. We show that target onsets give rise to brain responses that are associated with stimulus processing even before targets were fixated. This poses a challenge for the use of the electroencephalogram/event-related potential (EEG/ERP) in visual scanning environments: if fixation onset is not necessarily the onset of perception, it cannot always be used for attributing ERP data.