Group-by-RPE interaction in the anterior insula without a general group effect in overall activation¶

Claim · All claims
Evidence · 1 study · associational r1 · q3
Currency · newest study 2015 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? A repeated measures ANOVA on binned aIns responses revealed a significant RPE effect and a significant group-by-RPE interaction, but no significant group main effect. → Hauser 2015

Evidence¶

Hauser 2015¶

Hauser, T. U., Iannaccone, R., Walitza, S., Brandeis, D., & Brem, S. (2015). Cognitive flexibility in adolescence: Neural and behavioral mechanisms of reward prediction error processing in adaptive decision making during development. Neuroimage, 104, 347-354. https://doi.org/10.1016/j.neuroimage.2014.09.018

q3 · i? · associational · r1

Omnibus repeated measures ANOVA on the binned anterior insula fMRI responses of all 36 participants, with factors group and RPE bin. The article reports a significant RPE effect (F(2,34) = 40.37, p < .001), a significant group-by-RPE interaction (F(2,34) = 4.60, p = .013), and no significant group effect (F(1,34) = 1.77, p = .193).

"The repeated measures ANOVA with factors group (adolescents, adults) and RPE (negative, neutral, positive) revealed a significant RPE-effect (indicating that the aIns is modulated by RPEs across all subjects, F(2,34) = 40.37, p < .001), a significant group-by-RPE interaction (indicating that only some RPE bins differ between groups, F(2,34) = 4.60, p = .013), but no significant group effect (indicating that the group difference was not caused by generally increased or decreased responses across all RPE bins, F(1,34) = 1.77, p = .193)."

Discussion¶

Related Claims¶

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