Fiol-Veny Aina, De la Torre-Luque Alejandro, Balle Maria, Bornas Xavier
University of the Balearic Islands, Spain.
Nonlinear Dynamics Psychol Life Sci. 2017 Jul;21(3):255-266.
Many physiological systems are multistable, i.e. they operate at different time scales under an allometric control process. The multistability of affective fluctuations has been clearly illustrated in a sample of adults, but little is known about their dynamics in adolescents. The main aim of this study was to determine whether affective fluctuations in adolescents show multistability and to explore their relationship with anxiety symptomatology and temperamental factors. Twenty-five early adolescents self-reported their daily mood, anxiety and worry levels twice a day over a 100-day period. The time series were analysed using the allometric aggregation method to obtain the scaling exponent h. Almost all the (Hurst) scaling exponents were 0.5 > h > 1. The worry exponents were related to temperament factors, whereas the anxiety exponents were related to social phobia symptoms. The results substantiate that affective fluctuations in adolescents are multistable, lending support to the presence of allometric control mechanisms.
许多生理系统是多稳态的，即它们在异速生长控制过程下以不同的时间尺度运行。情感波动的多稳态在成年人样本中已得到清晰阐释，但对于青少年情感波动的动态变化却知之甚少。本研究的主要目的是确定青少年的情感波动是否呈现多稳态，并探讨其与焦虑症状及气质因素之间的关系。25名青少年早期个体在100天的时间里每天两次自我报告他们的日常情绪、焦虑和担忧水平。使用异速生长聚合方法对时间序列进行分析以获得标度指数h。几乎所有的（赫斯特）标度指数均为0.5 > h > 1。担忧指数与气质因素相关，而焦虑指数与社交恐惧症症状相关。结果证实青少年的情感波动是多稳态的，这为异速生长控制机制的存在提供了支持。
