EFFECTS OF SOCIAL AND PHYSICAL VARIABLES ON BETWEEN-PERSON VISUAL COORDINATION
EFFECTS OF SOCIAL AND PHYSICAL VARIABLES ON BETWEEN-PERSON VISUAL COORDINATION
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DOI:
10.1207/s15326969eco0603_1
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发表时间:
1994-01-01
影响因子:
1.9
通讯作者:
BARON, R
中科院分区:
文献类型:
--
作者:
SCHMIDT, RC;CHRISTIANSON, N;BARON, R
Between-person visual coordination of rhythmic limb movements was investigated under manipulation of both social and physical variables. Each member of a pair of participants oscillated a hand-held pendulum at the same tempo, with both visually coordinating their movements so as to maintain the alternate phase mode. Participants' social competence was assessed and they were paired to produce three types of combinations: high-high (HH), low-low (LL), and high-low (HL). The frequency of oscillation (set by a metronome) and the preferred frequency difference of the pendulum combinations (set by changing the relative lengths of the pendulums to be coordinated) were manipulated. Mean relative phase angle phi and its variability were measured as indices of coordination. Standard results from interlimb coordination were replicated in the manipulation of the physical variables: (a) More breakdowns in phase locking (defined as mean phis outside the stable 130-degrees to 230-degrees range) were observed for the higher frequency of oscillation, (b) Relative phase lag changed proportionately with absolute difference in the preferred frequency of the individual pendulums. Further, anomalous phi standard-deviation results seemed to indicate a second source of phi fluctuations being caused by strong nonlinearities at the level of the component rhythmic units. Importantly, the coordination was also affected by the social competence manipulations: HH and LL pairs demonstrated more breakdowns in phase locking than did the HL pair. Moreover, the HH pairs, in producing greater fluctuations in phi for pendulum combinations of equal length, did not seem to use the dynamical strategy for producing stable phase locking that has been widely observed and produced. An interpretation of the results is sought in the social control aspect of social competence.