Measuring Pavlovian appetitive conditioning in humans with the postauricular reflex.

This analysis revealed a statistically significant main effect of stimulus type, F (2, 108) = 11.67, p < .001, ɛ HF = 0.90, partial η 2 = .178, 90% CI = [.069, .279], and a marginal main effect of phase, F (2, 108) = 2.97, p = .063, ɛ HF = 0.87, partial η 2 = .052, 90% CI = [.000, .130], whereas the Stimulus Type × Phase interaction did not reach statistical significance, F (4, 216) = 1.33, p = .266, ɛ HF = 0.81, partial η 2 = .024, 90% CI = [.000, .057] (but see online supporting information for the outcome of more powerful planned contrasts testing specific patterns of results for the postauricular reflex). 2 As for the postauricular reflex, we ran a two‐way repeated measures ANOVA on the startle eyeblink reflex data for the sake of completeness.

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