期刊
TOPICS IN COGNITIVE SCIENCE
卷 -, 期 -, 页码 -出版社
WILEY
DOI: 10.1111/tops.12700
关键词
ACT-R; Vigilance; Attention; Fatigue; EEG
This article introduces the use of frontal gamma spectral power as a direct measure of vigilant effort and demonstrates its efficacy in modeling performance on the PVT.
Performance on the psychomotor vigilance test (PVT; Dinges & Powell, 1985)-a common index of sustained attention-is affected by the opposing forces of fatigue and sustained effort, where reaction times and error rates typically increase across trials and are sometimes offset by additional efforts deployed toward the end of the task (i.e., an end-spurt; cf. Bergum & Klein, 1961). In ACT-R (Adaptive Control of Thought-Rational; Anderson et al., 2004), these influences on task performance have been modeled as latent variables that are inferred from performance (e.g., Jongman, 1998; Veksler & Gunzelmann, 2018) without connections to directly observable variables. We propose the use of frontal gamma (gamma) spectral power as a direct measure of vigilant effort and demonstrate its efficacy in modeling performance on the PVT in both the aggregate and in individuals.
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