Global field power is positively associated with associative learning performance (d') at 322–634 ms, with the 322–507 ms period sourced to the middle occipital gyrus (BA 19)¶

Claim · All claims
Evidence · 1 study (3 entries) · associational r1–r2 · q3
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Stronger activation of active neural sources (GFP) was significantly associated with higher d' at 322–634 ms; the sub-period 322–507 ms was localized to the middle occipital gyrus (BA 19), suggesting better learners engage more visual-discrimination resources. → Raynal 2024 q3 i? The two early GFP sub-periods (322–392 ms and 437–507 ms) shared one topography (r = 0.92, p < 0.001), distinct from the 530–600 ms period, supporting a split into two effects. → Raynal 2024 (3)

Evidence¶

Raynal 2024¶

Raynal, E., Schipper, K., Brandner, C., Ruggeri, P. & Barral, J. (2024). Electrocortical correlates of attention differentiate individual capacity in associative learning. npj Science of Learning. https://doi.org/10.1038/s41539-024-00236-8

q3 · i? · associational · r1

GFP analysis of ERPs from the same 38-participant EEG associative learning task; the analysis "revealed a significant positive association of the GFP with d’ at 322–634 ms".

"The GFP analysis revealed a significant positive association of the GFP with d’ at 322–634 ms (Fig.2a), indicating that stronger activation of active neural sources was associated with higherd’."

Raynal 2024 (2)¶

Raynal, E., Schipper, K., Brandner, C., Ruggeri, P. & Barral, J. (2024). Electrocortical correlates of attention differentiate individual capacity in associative learning. npj Science of Learning. https://doi.org/10.1038/s41539-024-00236-8

q3 · i? · associational · r2

sLORETA source estimation for the 322–507 ms GFP covariance map in the same study; sources "included the middle occipital gyrus (BA 19)", which the authors link to discriminating shapes and colors.

"The underlying sources for this period (Fig. 2d) included the middle occipital gyrus (BA 19), with a maximum value at MNI coordinates X= −40, Y = −85, Z = −10."

Raynal 2024 (3)¶

Raynal, E., Schipper, K., Brandner, C., Ruggeri, P. & Barral, J. (2024). Electrocortical correlates of attention differentiate individual capacity in associative learning. npj Science of Learning. https://doi.org/10.1038/s41539-024-00236-8

q3 · i? · associational · r1

Spatial-correlation check on the divided GFP interval in the same EEG study: the first two ~70 ms windows merged (r = 0.92, p < 0.001) while the 530–600 ms window formed a distinct topography.

"The results indicated that the two first periods were very similar and could be merged into one (r = 0.92, p < 0.001), while the third period was not highly correlated with the other two (r = 0.59,p < 0.001 with the first one andr = 0.69,p < 0.001 with the second one) and thus reflected a distinct topography."

Discussion¶

Related Claims¶

• Better associative learning performance is associated with a later (573–638 ms) P3b-like topographic difference with frontal (BA 11) sources — related
• Better associative learning performance is associated with early (126–148 ms) ERP topographic differences coinciding with P1 and sourced to the precuneus (BA 7) — related