Functional magnetic resonance imaging of mental strategy in a simulated aviation performance task. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Aviation, Space, and Environmental Medicine Année : 2000

Functional magnetic resonance imaging of mental strategy in a simulated aviation performance task.

Résumé

BACKGROUND: The objective of this study was to analyze the sensory and cognitive functions associated with activated brain regions characterizing mental strategy relative to degree of expertise in aviation-related tasks. METHODS: We used echo-planar functional magnetic resonance imaging (fMRI) technique to examine brain activity in expert pilots (n = 6) compared with novice pilots (n = 6) during performance of a simulated aviation track-following task at 200 knots vs. 100 knots. RESULTS: Expert pilots showed reduced activity in visual and motor regions that contrasted with predominant activation within anterior structures including the frontal and prefrontal cortices; structures involved in visual working memory, planning, selective attention and decision making functions. Novice pilots showed widespread activation of anterior and posterior brain structures, with a rise in activity in the visual, parietal and motor cortices as task difficulty increased. CONCLUSIONS: A high level of performance in the track-following task related to a high degree of expertise in the aviation field. This corresponded to experts performing perceptual and mnemonic processing through a network of specialized functions from visual through multiple prefrontal areas. By contrast, the novice pilots predominantly show activity associated with non-specific perceptual processing and without subsequent representation of selective information in working memory.

Domaines

Imagerie
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Dates et versions

hal-00349818 , version 1 (04-01-2009)

Identifiants

  • HAL Id : hal-00349818 , version 1
  • PUBMED : 11439722

Citer

M. Pérès, P. F. van de Moortele, C. Pierard, S. Lehericy, P. Satabin, et al.. Functional magnetic resonance imaging of mental strategy in a simulated aviation performance task.. Aviation, Space, and Environmental Medicine, 2000, 71 (12), pp.1218-31. ⟨hal-00349818⟩
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