Fluid gestures accompany the superior intra-brain state (State 1) of the gesturing participant, whose occurrence rate correlates with fluency¶

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

Subclaims¶

q3 i3 In BOTH and ONE-user conditions, when using fluid gestures, the occurrence rate of dFC State 1 was significantly higher than States 2 and 3 (ηP² = 0.18 each). → Xinyue Wang 2024 q3 i3 The occurrence rate of intra-brain State 1 was positively correlated with RPP fluency under BOTH (r = 0.38) and ONE-user (r = 0.38), and with the number of fluid gestures under ONE-user (r = 0.40). → Xinyue Wang 2024 (2)

Evidence¶

Xinyue Wang 2024¶

Xinyue Wang, Kelong Lu, Yingyao He, Xinuo Qiao, Zhenni Gao, Yu Zhang & Ning Hao. (2024). Dynamic brain networks in spontaneous gestural communication. npj Science of Learning. https://doi.org/10.1038/s41539-024-00274-2

q3 · i3 · causal · r2

Behaviour locking analysis of dynamic intra-brain FC states (27 dyads); ηP² = 0.18 under BOTH, and F (2,52) = 5.81, P = 0.005, ηP² = 0.18 under ONE-user. The article says this shows "a positive connection between fluid gestures and efficient intra-brain states".

"when using fluid gestures, the occurrence rate of State 1 was significantly higher than that of State 2 and 3 ( ‘BOTH’: F (2,52) = 5.78, P = 0.005, ηP 2 =0 . 1 8"

Xinyue Wang 2024 (2)¶

Xinyue Wang, Kelong Lu, Yingyao He, Xinuo Qiao, Zhenni Gao, Yu Zhang & Ning Hao. (2024). Dynamic brain networks in spontaneous gestural communication. npj Science of Learning. https://doi.org/10.1038/s41539-024-00274-2

q3 · i3 · causal · r2

Correlational analysis of dFC state occurrence with behaviour in the 27-dyad study; also correlated with the number of fluid gestures (r = 0.40, P = 0.037) under ONE-user, supporting Hypothesis (III) about fluid gestures and individual cognitive fluency.

"the occurrence rate of State 1 was positively correlated with RPP fluency under the ‘BOTH’(r = 0.38, P = 0.048) and ‘ONE-user’condition (r = 0.38, P = 0.049)"

Discussion¶

Related Claims¶

• State 1 of dynamic inter-brain connectivity is a superior communication state: higher global efficiency, clustering and ROI strength, lower path length, with ISFC increments in mirroring and mentalizing regions — related
• Behaviour locking shows interactive gestures accompany the superior inter-brain state (State 1), while the absence of gestures accompanies the inferior state under ONE — related
• When only one participant could gesture, that participant used fewer interactive and more fluid gestures than the per-person rate under BOTH — related
• Number of interactive gestures correlates positively with team originality and fluency, and number of fluid gestures with individual fluency — related
• Averaging brain connectivity over the whole task period failed to detect intra-brain differences between gesture conditions, motivating dynamic analysis — related
• Dyads in which both participants could gesture produced higher team originality and more combined ideas than dyads in which one or neither could gesture — related