| Version imprimable |
Ressource documentaire
| “Quantifying JI” Short talk 1.2: Tommi Himberg -
Mirroring improvised hand movements in a dyad (en Anglais) | |||
Droits : BY NC SA Auteur(s) : HIRATA Helena 04-11-2015 Description : We studied coordination and movement kinematics in a mirror game. 32 participants (18 f, 14 m; mean age 25.2 years, range 19–37) performed circledrawing and freely improvised hand movement mirroring tasks in dyads. The participants were standing facetoface, right index fingers pointed at each other, fingertips 10–15 cm apart. In turn, one of the participants was appointed the leader, or the dyad was instructed to share leadership. Hand movements were recorded using an optical motion capture system. Joint leadership resulted in smoother performances than the leader–follower condition; the follower participant would often hesitate or correct their movements, resulting in oscillatory 2–3 Hz jitter. In joint leadership tasks this jitter was 23% lower than in followers (p < 0.01). This corresponds with the “coconfident motion” observed in joint leadership mirror task by Noy et al. (2011). In leaderfollower tasks the follower trailed the leader by approximately 0.3 seconds. Joint leadership trials resulted in mutual adaptation, with both participants “following” each other at similar lags. Windowed analysis revealed that the direction of the lag varied at subsecond intervals. Hand movements were faster in circle drawing than in free improvisation, but there were no velocity differences between the leadership conditions. These findings imply that dyads that share leadership perform smoother movements and exhibit stronger mutual adaptation than dyads where one participant is externally assigned as the leader. Our study on coordination of threedimensional movements extends the scope of previous dyadic interaction studies that used rhythmic tapping and 1D movements. Mots-clés libres : interaction linguistique,improvisation | TECHNIQUE Type : image en mouvement Format : video/x-flv Source(s) : rtmpt://fms2.cerimes.fr:80/vod/site_pouchet_cnrs/a.quantifying.jia.short.talk.1.2.tommi.himberg.mirroring.improvised.hand.movements.in.a.dyad_20260/ldquo_quantifying_ji_rdquo_short_talk_1_2_tommi_himberg_mirroring_improvised_hand_movements_in_a_dyad_20260.sd.mp4 | ||
Entrepôt d'origine : Canal-u.fr Identifiant : oai:canal-u.fr:20260 Type de ressource : Ressource documentaire | |||
| Exporter au format XML |
Ressource pédagogique
| “Quantifying JI” Short talk 1.2: Tommi Himberg -
Mirroring improvised hand movements in a dyad (en Anglais) | |||||||||
Identifiant de la fiche : 20260 Schéma de la métadonnée : LOMv1.0, LOMFRv1.0 Droits : libre de droits, gratuit Droits réservés à l'éditeur et aux auteurs. BY NC SA Auteur(s) : HIRATA HELENA 04-11-2015 Description : We studied coordination and movement kinematics in a mirror game. 32 participants (18 f, 14 m; mean age 25.2 years, range 19–37) performed circledrawing and freely improvised hand movement mirroring tasks in dyads. The participants were standing facetoface, right index fingers pointed at each other, fingertips 10–15 cm apart. In turn, one of the participants was appointed the leader, or the dyad was instructed to share leadership. Hand movements were recorded using an optical motion capture system. Joint leadership resulted in smoother performances than the leader–follower condition; the follower participant would often hesitate or correct their movements, resulting in oscillatory 2–3 Hz jitter. In joint leadership tasks this jitter was 23% lower than in followers (p < 0.01). This corresponds with the “coconfident motion” observed in joint leadership mirror task by Noy et al. (2011). In leaderfollower tasks the follower trailed the leader by approximately 0.3 seconds. Joint leadership trials resulted in mutual adaptation, with both participants “following” each other at similar lags. Windowed analysis revealed that the direction of the lag varied at subsecond intervals. Hand movements were faster in circle drawing than in free improvisation, but there were no velocity differences between the leadership conditions. These findings imply that dyads that share leadership perform smoother movements and exhibit stronger mutual adaptation than dyads where one participant is externally assigned as the leader. Our study on coordination of threedimensional movements extends the scope of previous dyadic interaction studies that used rhythmic tapping and 1D movements. Mots-clés libres : interaction linguistique, improvisation
| PEDAGOGIQUE Type pédagogique : cours / présentation Niveau : enseignement supérieur TECHNIQUE Type de contenu : image en mouvement Format : video/x-flv Taille : 76.01 Mo Durée d'exécution : 15 minutes 44 secondes RELATIONS Cette ressource fait partie de : | ||||||||
Entrepôt d'origine : Canal-u.fr Identifiant : oai:canal-u.fr:20260 Type de ressource : Ressource pédagogique | |||||||||
| Exporter au format XML |