CNV and P3 scalp topographies show a frontal shift with increasing age during adolescence¶

Claim · All claims
Evidence · 2 studies · 2 associational r1 · q3 · i3 large
Currency · newest study 2015 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2020: baselines and conditions change

Subclaims¶

q3 i3 Normalized CNV amplitude at Fz preceding standards and random targets was larger in 18–24 year-olds than in younger groups, indicating an age-related increase in frontal contribution. → Thillay A 2015 q3 i3 Normalized P3 amplitude at Fz to standards was larger in 18–24 year-olds than in younger groups, indicating a frontal shift in the P3 response with age. → Thillay A 2015 (2)

Evidence¶

Thillay A 2015¶

Thillay A, Roux S, Gissot V, Carteau-Martin I, Knight RT, Bonnet-Brilhault F and Bidet-Caulet A (2015) Sustained attention and prediction: distinct brain maturation trajectories during adolescence. Front. Hum. Neurosci. 9:519. https://doi.org/10.3389/fnhum.2015.00519

q3 · i3 · associational · r1

rmANOVAs on normalized CNV amplitudes at Fz, Cz, Pz in the 36-participant cross-sectional sample showed a significant electrode × age group interaction, driven by the frontal electrode. The frontal effect at Fz for standards was "F(2,33) = 5.86, p = 0.007, ηp = 0.262". No difference was found between the two younger groups.

"Post hoc analyses revealed that CNV normalized amplitude at Fz preceding standards and randTs were larger in 18–24 year-olds compared to 14–17 year-olds ( p = 0.002, or p = 0.023; respectively) and compared to 12–14 year-olds ( p = 0.003, or p = 0.047; respectively)."

Thillay A 2015 (2)¶

Thillay A, Roux S, Gissot V, Carteau-Martin I, Knight RT, Bonnet-Brilhault F and Bidet-Caulet A (2015) Sustained attention and prediction: distinct brain maturation trajectories during adolescence. Front. Hum. Neurosci. 9:519. https://doi.org/10.3389/fnhum.2015.00519

q3 · i3 · associational · r1

rmANOVAs on normalized P3 amplitudes (350–600 ms) showed a significant electrode × age group interaction; the frontal effect at Fz to standards was "F(2,33) = 5.59, p = 0.008, ηp = 0.253". P3 amplitude at Pz to random targets was smaller in 18–24 year-olds than 14–17 year-olds, consistent with a parietal-to-frontal shift.

"Post hoc analyses revealed that P3 normalized amplitude at Fz to standards were larger in 18–24 year-olds compared to 14–17 year-olds ( p = 0.015) and compared to 12–14 year-olds (p = 0.016)."

Discussion¶

Related Claims¶

• Predictability enhances P3 amplitude, CNV amplitude, and shortens target-P3 latency equally at all ages, indexing mature prediction encoding, preparation, and implementation — related
• The magnitude of ERP prediction markers correlates with the behavioral reaction-time benefit of predictability — related
• Reaction-time benefit from predictive context is similar across ages 12–24, suggesting mature prediction abilities by age 12 — related
• Old high performers show larger CNV amplitudes than old middle and low performers, comparable to middle-aged and young adults — related
• Executive-function brain circuitry takes more than twenty years to fully mature, leaving school-age youth with underdeveloped long-run decision systems — related