“…As previously noted, frontal asymmetry may be a unique trait‐level marker of affective and approach‐withdrawal tendencies in infants (Buss et al, ; Davidson & Fox, ; Hane, Fox, Henderson, & Marshall, ). In contrast, parietal asymmetry may reflect more cognitive processing and general emotional arousal, regardless of valence (Heller, Nitschke, & Miller, ; Solomon, O'Toole, Hong, & Dennis, ). Therefore, to the degree that posterior asymmetry may reflect cognitive or emotional arousal to a task at hand rather than traitlike pattern of individual differences in behavioral propensities, less consistency over time—particularly during baseline tasks—may be expected.…”