Paradoxical roles of inhibitory autapse and excitatory synapse in formation of counterintuitive anticipated synchronization  

作　　者：丁学利 古华光 李玉叶 贾雁兵 Xue-Li Ding;Hua-Guang Gu;Yu-Ye Li;Yan-Bing Jia(Department of Public Basic Education,Fuyang Institute of Technology,Fuyang 236031,China;School of Aerospace Engineering and Applied Mechanics,Tongji University,Shanghai 200092,China;College of Mathematics and Computer Science,Chifeng University,Chifeng 024000,China;School of Mathematics and Statistics,Henan University of Science and Technology,Luoyang 471000,China)

机构地区：[1]Department of Public Basic Education,Fuyang Institute of Technology,Fuyang 236031,China [2]School of Aerospace Engineering and Applied Mechanics,Tongji University,Shanghai 200092,China [3]College of Mathematics and Computer Science,Chifeng University,Chifeng 024000,China [4]School of Mathematics and Statistics,Henan University of Science and Technology,Luoyang 471000,China

出　　处：《Chinese Physics B》2023年第8期499-509,共11页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.12072236,12162002,and11802086);the Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region(Grant No.NJYT-20-A09);the Program for Excellent Young Talents in Colleges and Universities of Anhui Province of China(Grant No.gxyq ZD2020077)。

摘　　要：Different from the common delayed synchronization(DS)in which response appears after stimulation,anticipated synchronization(AS)in unidirectionally coupled neurons denotes a counterintuitive phenomenon in which response of the receiver neuron appears before stimulation of the sender neuron,showing an interesting function of brain to anticipate the future.The dynamical mechanism for the AS remains unclear due to complex dynamics of inhibitory and excitatory modulations.In this article,the paradoxical roles of excitatory synapse and inhibitory autapse in the formation of AS are acquired.Firstly,in addition to the common roles such that inhibitory modulation delays and excitatory modulation advances spike,paradoxical roles of excitatory stimulation to delay spike via type-II phase response and of inhibitory autapse to advance spike are obtained in suitable parameter regions,extending the dynamics and functions of the excitatory and inhibitory modulations.Secondly,AS is related to the paradoxical roles of the excitatory and inhibitory modulations,presenting deep understandings to the AS.Inhibitory autapse induces spike of the receiver neuron advanced to appear before that of the sender neuron at first,and then excitatory synapse plays a delay role to prevent the spike further advanced,resulting in the AS as the advance and delay effects realize a dynamic balance.Lastly,inhibitory autapse with strong advance,middle advance,and weak advance and delay effects induce phase drift(spike of the receiver neuron advances continuously),AS,and DS,respectively,presenting comprehensive relationships between AS and other behaviors.The results present potential measures to modulate AS related to brain function.

关 键 词：anticipated synchronization inhibitory autapse excitatory synapse paradoxical firing 

分 类 号：Q42[生物学—神经生物学]