Biological Cybernetics最新文献_第10页

Pattern formation revisited within nonequilibrium thermodynamics: Burgers'-type equation. 在非平衡热力学中重新审视模式形成:汉堡型方程。

IF 1.9 4区工程技术

Biological Cybernetics Pub Date : 2022-02-01 Epub Date: 2021-11-10 DOI: 10.1007/s00422-021-00908-3

Václav Klika

{"title":"Pattern formation revisited within nonequilibrium thermodynamics: Burgers'-type equation.","authors":"Václav Klika","doi":"10.1007/s00422-021-00908-3","DOIUrl":"https://doi.org/10.1007/s00422-021-00908-3","url":null,"abstract":"We revisit the description of reaction-diffusion phenomena within nonequilibrium thermodynamics and investigate the role of a nonstandard splitting of the entropy balance into the entropy production and the divergence of entropy flux. As previously reported by Pavelka et al. (Int J Eng Sci 78:192-217, 2014), a new term is identified following from the kinetic energy of diffusion. This newly appearing term acts as a thermodynamic force driving the reaction kinetics. Using the standard constitutive relations within the linear nonequilibrium thermodynamics, the governing equations for a reaction-diffusion problem in a two-species system are derived. They turn out to be linked to Burgers' equation. It is shown that the onset of stability is not altered, but a non-periodic pattern can emerge. The latter follows from the relation of the governing equation to Burger's equation with a source term. Hence, transients formed by glued and merging parabolic profiles are expected to appear at least in certain parameter regimes. We explore the significance of this effect and observe that for a comparable magnitude of the diffusion and of the new term stemming from the kinetic energy of diffusion, the solution is expected to be linked to the saw-tooth like solution to Burger's equation rather than to the eigenmodes of the Laplacian. We conclude that the reaction-diffusion model proposed by Turing is robust to the addition of this effect of the kinetic energy of diffusion, at least when this new term is sufficiently small. As the governing equations can be rewritten into the classical reaction-diffusion problem but with reaction kinetics outside of the classical law of mass action, the analysis presented in this study suggests that a yet richer behaviour of the classical reaction-diffusion problems can be expected, if nonstandard reaction kinetics are considered.","PeriodicalId":55374,"journal":{"name":"Biological Cybernetics","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39605721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

On motion camouflage as proportional navigation. 运动伪装在比例导航中的应用。

IF 1.9 4区工程技术

Biological Cybernetics Pub Date : 2022-02-01 Epub Date: 2021-11-11 DOI: 10.1007/s00422-021-00907-4

Iñaki Rañó

{"title":"On motion camouflage as proportional navigation.","authors":"Iñaki Rañó","doi":"10.1007/s00422-021-00907-4","DOIUrl":"https://doi.org/10.1007/s00422-021-00907-4","url":null,"abstract":"Motion camouflage is a stealth behaviour by which an insect can appear stationary at a fixed point while approaching or escaping another moving insect. Although several approaches have been proposed to generate motion camouflage in simulated and real agents, the exact mechanisms insects use to perform this complex behaviour are not well understood, especially considering their limited perceptual and computational resources. This paper sheds light on the possible underlying control mechanisms insect might use to generate motion camouflage, by training and analysing a series of motion camouflage controllers using reinforcement learning. We first investigate through simulations the most relevant information available to the insect that can be used to perform motion camouflage and analyse the learnt controllers. The results of this analysis drove us to hypothesise two simpler control mechanisms which, we show, can also generate motion camouflage. The proposed controllers are an extension of proportional navigation, another interception technique found in nature, and therefore, both animal behaviours seem to be connected. Motion camouflage can lead, among others, to novel approaches to closely observe animals in the wild, record sports events or gather information in military operations without being noticed.","PeriodicalId":55374,"journal":{"name":"Biological Cybernetics","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39881210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Editorial board of Biological Cybernetics: Advances in Computational Neuroscience and in Control and Information Theory for Biological Systems. 《生物控制论:计算神经科学与生物系统控制与信息论的进展》编委会。

IF 1.9 4区工程技术

Biological Cybernetics Pub Date : 2022-02-01 DOI: 10.1007/s00422-022-00921-0

引用次数: 0

Auxiliary controller design and performance comparative analysis in closed-loop brain-machine interface system. 闭环脑机接口系统中辅助控制器的设计与性能对比分析。

IF 1.9 4区工程技术

Biological Cybernetics Pub Date : 2022-02-01 Epub Date: 2021-10-04 DOI: 10.1007/s00422-021-00897-3

Hongguang Pan, Haoqian Song, Qi Zhang, Wenyu Mi, Jinggao Sun

{"title":"Auxiliary controller design and performance comparative analysis in closed-loop brain-machine interface system.","authors":"Hongguang Pan, Haoqian Song, Qi Zhang, Wenyu Mi, Jinggao Sun","doi":"10.1007/s00422-021-00897-3","DOIUrl":"https://doi.org/10.1007/s00422-021-00897-3","url":null,"abstract":"Brain-machine interface (BMI) can realize information interaction between the brain and external devices, and yet the control accuracy is limited by the change of electroencephalogram signals. The introduction of auxiliary controller can overcome the above problems, but the performance of different auxiliary controllers is quite different. Hence, in this paper, we comprehensively compare and analyze the performance of different auxiliary controllers to provide a theoretical basis for designing BMI system. The main work includes: (1) designing four kinds of auxiliary controllers based on simultaneous perturbation stochastic approximation-function approximator (SPSA-FA), iterative feedback tuning-PID (IFT-PID), model predictive control (MPC) and model-free control (MFC); (2) based on the model of improved single-joint information transmission, constructing the closed-loop BMI systems with the decoder-based Wiener filter; and (3) comparing their performance in the constructed closed-loop BMI systems for dynamic motion restoration. The results show that the order of tracking accuracy is MPC, IFT-PID, SPSA-FA, MFC, and the order of time consumed is opposite. A good control effectiveness is achieved at the expense of time, so a suitable auxiliary controller should be selected according to the actual requirements.","PeriodicalId":55374,"journal":{"name":"Biological Cybernetics","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39483778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Generalized neural field theory of cortical plasticity illustrated by an application to the linear phase of ocular dominance column formation in primary visual cortex. 皮层可塑性的广义神经场理论在初级视觉皮层眼优势柱形成线性阶段的应用。

IF 1.9 4区工程技术

Biological Cybernetics Pub Date : 2022-02-01 Epub Date: 2021-11-13 DOI: 10.1007/s00422-021-00901-w

M M Aghili Yajadda, P A Robinson, J A Henderson

{"title":"Generalized neural field theory of cortical plasticity illustrated by an application to the linear phase of ocular dominance column formation in primary visual cortex.","authors":"M M Aghili Yajadda, P A Robinson, J A Henderson","doi":"10.1007/s00422-021-00901-w","DOIUrl":"https://doi.org/10.1007/s00422-021-00901-w","url":null,"abstract":"Physiologically based neural field theory (NFT) is extended to encompass cortical plasticity dynamics. An illustrative application is provided which treats the evolution of the connectivity of left- and right-eye visual stimuli to neuronal populations in the primary visual cortex (V1), and the initial, linear phase of formation of approximately one-dimensional (1D) ocular dominance columns (ODCs) that sets their transverse spatial scale. This links V1 activity, structure, and physiology within a single theory that already accounts for a range of other brain activity and connectivity phenomena, thereby enabling ODC formation and many other phenomena to be interrelated and cortical parameters to be constrained across multiple domains. The results accord with experimental ODC widths for realistic cortical parameters and are based directly on a unified description of the neuronal populations involved, their connection strengths, and the neuronal activity they support. Other key results include simple analytic approximations for ODC widths and the parameters of maximum growth rate, constraints on cortical excitatory and inhibitory gains, elucidation of the roles of specific poles of the V1 response function, and the fact that ODCs are not formed when input stimuli are fully correlated between eyes. This work provides a basis for further generalization of NFT to model other plasticity phenomena, thereby linking them to the range multiscale phenomena accounted for by NFT.","PeriodicalId":55374,"journal":{"name":"Biological Cybernetics","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39708669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction to: Excitable networks for finite state computation with continuous time recurrent neural networks. 修正:用连续时间递归神经网络进行有限状态计算的可激励网络。

IF 1.9 4区工程技术

Biological Cybernetics Pub Date : 2022-02-01 DOI: 10.1007/s00422-021-00911-8

Peter Ashwin, Claire Postlethwaite

引用次数: 0

BAIQ : Aplikasi Pembelajaran Iqro Berbasis Ponsel Pintar untuk Penguatan Pendidikan Karakter Religius BAIQ:基于智能手机的Iqro学习应用，以加强宗教性格教育

IF 1.9 4区工程技术

Biological Cybernetics Pub Date : 2021-12-07 DOI: 10.29406/cbn.v5i02.2730

Hariyady Hariyady, Ali Softyan Kholimi, Najmuddin Tsaqib, M. A. S. Rijal

引用次数: 0

Sistem Kendali dan Monitoring Pemberian Pakan Unggas Berbasis Internet of Things (IoT) 控制系统和监测基于互联网的家禽饲料(许多)

IF 1.9 4区工程技术

Biological Cybernetics Pub Date : 2021-12-07 DOI: 10.29406/cbn.v5i02.2567

Irma Nirmala, D. Triyanto, S. Suhardi

引用次数: 0

Analisis Pemanfaatan Search Engine Optimization (SEO) sebagai Upaya Meningkatkan Volume Lalu Lintas Website Akademik di Google Search Engine

IF 1.9 4区工程技术

Biological Cybernetics Pub Date : 2021-12-07 DOI: 10.29406/cbn.v5i02.2733

Habibullah Al Faruq, Hindayati Mustafidah

引用次数: 0

Archerfish respond to a hunting robotic conspecific. 射水鱼会对一个狩猎机器人做出反应。

IF 1.9 4区工程技术

Biological Cybernetics Pub Date : 2021-12-01 DOI: 10.1007/s00422-021-00885-7

Alexander A Brown, Michael F Brown, Spencer R Folk, Brent A Utter

{"title":"Archerfish respond to a hunting robotic conspecific.","authors":"Alexander A Brown, Michael F Brown, Spencer R Folk, Brent A Utter","doi":"10.1007/s00422-021-00885-7","DOIUrl":"https://doi.org/10.1007/s00422-021-00885-7","url":null,"abstract":"While the unique hunting behavior of archerfish has received considerable scientific attention, the specific social cues that govern behaviors like intraspecific kleptoparasitism in the species are less understood. This paper asks whether the use of a robotic facsimile representing an archerfish can elicit a social response if it approximates an archerfish's appearance, along with key features of its hunting behavior. We found that the fish respond to the robot when it hunted, as indicated by decreasing distances between the robot and fish (and among the fish) during the robot's hunting behavior sequence, as well as higher net transfer entropy when the robot was hunting. These effects were present even when the robot's \"hunt\" was unproductive and did not result in food. The temporal pattern of fish approach to the robot and each other indicated that the segment of robot hunting behavior proximal to the robotic facsimile shot elicited fish behavior initially. However, earlier cues in the robot's hunting sequence became important following more experience with a food contingency. This indicates that further studies could use a robotic facsimile to conduct a detailed stimulus analysis, changing aspects of the robot's appearance and behavior to uncover the basic mechanisms of information transfer among individuals in a social hunting scenario.","PeriodicalId":55374,"journal":{"name":"Biological Cybernetics","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00422-021-00885-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9330258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6