Mismatch negativity and reorienting negativity demonstrated during EEG flight trials

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TypePresentation
Proceedings titleAviation, Space, and Environmental Medicine
Conference2014 Annual Scientific Meeting of the Aerospace Medical Association, May 10-15, 2014, San Diego, CA
ISSN0095-6562
Volume85
Issue3
Pages333333
AbstractINTRODUCTION: A physiological monitoring capability was integrated into a National Research Council Canada Convair 580 research aircraft in order to investigate pilot workload and fatigue. The goal of the project was to develop an objective means of evaluating pilot workload and alertness that does not interfere with a pilot’s fl ight task. To this end, an electroencephalography (EEG) system was interfaced with the aircraft communication system to present auditory stimuli to the pilot’s headset so that the resultant event-related potentials (ERPs) could be analyzed. The result was a precisely-timed technique for evaluating the cognitive processing of an ignored auditory information stream in a fl ying pilot. METHODS: An auditory oddball task was used such that 100 ms standard (1000Hz) and deviant (1500Hz) tones were presented at a rate of one per second. Deviant tones represented 10% of the tone sequence, and were delivered at random, unpredictable times. RESULTS: Across a series of 15-minute fl ight segments, characteristic ERP sensory components (P1, N1, and P2) were observed in response to the standard tones. More importantly, when the event-related potentials to standard and deviant tones were compared, a signifi cant mismatch negativity (MMN) with a classic frontocentral distribution was observed. A statistically signifi cant reorienting negativity (RON) was also observed, suggesting a reorienting to the primary fl ight task following distraction by the deviant tones. DISCUSSION: Mismatch and reorienting negativity are small ERP components that can be diffi cult to detect in environments that are high in electromagnetic noise. The demonstration of reliable MMN and RON effects during actual fl ight represents an important step in the development of pilot alertness monitoring techniques.
Publication date
PublisherAerospace Medical Association
Linkhttp://www.ingentaconnect.com/contentone/asma/asem/2014/00000085/00000003/art00013
LanguageEnglish
AffiliationNational Research Council Canada; Aerospace
Peer reviewedYes
NPARC number23001342
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Record identifier2a0def4e-3720-452d-9c16-9675b0b4bfc1
Record created2017-01-20
Record modified2017-01-20
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