In the joint context, NMF-derived BtBC cluster slopes predicted learning: Cluster 1 negatively with RT slope and Cluster 2 positively with intra-brain connectivity slope¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3 · i3 large
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person
Design limits · Zheng Zheng & Jun Wang 2024: no comparison group (read from the study by two models, 2026-10-26)

Subclaims¶

q3 i3 The slope of BtBC within NMF-derived Cluster 1 (parietal–occipital to frontal) was negatively correlated with the slope of RT in the joint context (r = −0.39, P = 0.043). → Zheng Zheng & Jun Wang 2024 q3 i3 The slope of BtBC within NMF-derived Cluster 2 (parietal–parietal) was positively correlated with the slope of intra-brain functional connectivity in the joint context (r = 0.44, P = 0.021). → Zheng Zheng & Jun Wang 2024 (2)

Evidence¶

Zheng Zheng & Jun Wang 2024¶

Zheng Zheng & Jun Wang. (2024). Interbrain neural correlates of self and other integration in joint statistical learning. npj Science of Learning. https://doi.org/10.1038/s41539-024-00280-4

q3 · i3 · causal · r2

Pearson correlation between NMF-clustered BtBC slopes and behavioural learning slopes, significant only for the joint context: Cluster 1 BtBC slope correlated negatively with RT slope, r = −0.39, P = 0.043.

"the slope of BtBC within NMF-derived Cluster 1 (see Fig. 3e) was negatively correlated with the slope of RT ( r = −0.39, P = 0.043; see Fig. 3f), indi- cating that the increasing trend in BtBC (i.e., a more positive slope) within Cluster 1 predicted the decreasing trend in RT"

Zheng Zheng & Jun Wang 2024 (2)¶

Zheng Zheng & Jun Wang. (2024). Interbrain neural correlates of self and other integration in joint statistical learning. npj Science of Learning. https://doi.org/10.1038/s41539-024-00280-4

q3 · i3 · causal · r2

Pearson correlation in the joint context between Cluster 2 (parietal–parietal) BtBC slopes and intra-brain functional-connectivity slopes: r = 0.44, P = 0.021, with correlations observed only for the joint context.

"the slope of BtBC within NMF-derived Cluster 2 (see Fig. 3g) was positively correlated with the slope of intra-brain functional connectivity ( r = 0.44, P = 0.021; see Fig. 3h), indicating that the increasing trend in BtBC (i.e., the more positive slope) within Cluster 2 predicted the increasing trend in intra-brain functional connectivity"

Discussion¶

Related Claims¶

• Intra-brain theta-band functional connectivity between frontal and parietal regions declined more steeply during learning in the joint context than the baseline context — related
• Theta-band brain-to-brain coupling increased more steeply during learning in the joint context and was modulated by the presence or absence of statistical regularity — related
• Inserting an interference sequence disrupted and then recovered joint-context performance: RT rose from Block 6 to 7 and fell from Block 7 to 8 only in the joint context — related
• A joint context with an active co-actor produces a steeper reaction-time learning slope than a baseline context with a passive observer in a complementary statistical learning task — related