Abstract
Level of arousal as indicated by the amplitude of the EEG alpha rhythm was continuously recorded from 40 Ss while their two flash thresholds were measured. A significant correlation (r=+.56) found between the two variables was interpreted as supporting the theory that 2FT is a measure of arousal. Additional evidence from other sources is considered, and a reason why the correlation is not higher is offered.
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1. The work described in this paper was supported by a grant from the Medical Research Council.
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Venables, P.H., Warwick-Evans, L.A. Cortical arousal and two flash threshold. Psychon Sci 8, 231–232 (1967). https://doi.org/10.3758/BF03331636
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DOI: https://doi.org/10.3758/BF03331636