Evaluation of 3D cognitive fatigue using heart–brain synchronization

The purpose of this study was to identify an evaluation method for 3D cognitive fatigue based on a heart–brain synchronization phenomenon known as the heartbeat evoked potential (HEP). Thirty undergraduate students (15 females) watched a video in both 2D and 3D for an hour. Because visual fatigue is...

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Bibliographic Details
Published in:International journal of psychophysiology 2015-08, Vol.97 (2), p.120-130
Main Authors: Park, Sangin, Won, Myoung Ju, Lee, Eui Chul, Mun, Sungchul, Park, Min-Chul, Whang, Mincheol
Format: Article
Language:English
Subjects:
3D visual fatigue
Brain - physiopathology
Cognition - physiology
Cognitive load
Electrocardiography
Electroencephalography
ERP (event related potential)
Evoked Potentials - physiology
Fatigue - pathology
Female
Heart - physiopathology
Heart–brain synchronization
HEP (heartbeat evoked potential)
Humans
Imaging, Three-Dimensional
Male
Photic Stimulation
Reaction Time - physiology
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Summary:The purpose of this study was to identify an evaluation method for 3D cognitive fatigue based on a heart–brain synchronization phenomenon known as the heartbeat evoked potential (HEP). Thirty undergraduate students (15 females) watched a video in both 2D and 3D for an hour. Because visual fatigue is related to cognitive load, the HEP was used as an indicator of communication between the heart and the brain and therefore of cognitive function; responses were compared after 2D and 3D viewing. At the standard EEG sites F3 and F4, the alpha activity of the first and second HEP components was significantly increased after 3D video viewing relative to 2D. This increase likely indicates that sensory input from 3D video requires heavy computation by the brain, stimulating heart activity. The conclusion is that the first and second HEP components are significant parameters that can quantitatively evaluate 3D visual fatigue. Further work is needed to uncover the cause of 3D visual fatigue. •3D viewing significantly increased HEP (first & second components) at F3 and F4.•HEP measure showed high reliability and convergent validity rather than other measures.•HEP validated the usage of the measurement as indicator of cognitive function.•HEP was recommended as better evaluators of 3D visual fatigue than other measure.
ISSN:0167-8760
1872-7697
DOI:10.1016/j.ijpsycho.2015.04.006