21 papers · ranked by Valyu relevance
Abdelmalik Moujahid, Fernando Vadillo
Mathematical modeling is an important tool to study the role of delay in neural systems and to evaluate its effects on the signaling activity of coupled neurons. Models for delayed neurons are often used to represent the dynamics of real neurons, but rarely to assess the energy required to maintain these dynamics. In…
Fahhad H. Alharbi, Abdelrahman S Abdelrahman, Abdullah M Alkathiry, Hussain M Al-Qahtan
'Hussain M Al-Qahtan'] > The Frimmer-Novotny model to simulate two-level systems by coupled oscillators is extended by incorporating a constant time delay in the coupling. The effects of the introduced delay on system dynamics and two-level modeling are then investigated and found substantial. Mathematically…
Valentin Bégel, Alexander P. Demos, Michelle Wang, Caroline Palmer
Important individual differences are observed in people’s abilities to synchronize their body movements with regular auditory rhythms. We investigate whether synchronizing with a regular auditory cue is affected by each person’s spontaneous production rate (SPR) and by hearing a partner’s synchronization in a social…
Bruno R. R. Boaretto, Kalel L. Rossi, Lyle E. Muller, Elbert E. Macau + 1 more
Neuronal communication is inherently time-delayed, due to the finite speed of signal propagation. Although often considered challenging or disruptive, such time delays can also endow neural circuits with useful capabilities. Here, we show that delays in excitatory connections between excitable neurons coordinate their…
Joon-Young Moon, Kathrin Müsch, Charles E. Schroeder, Taufik A. Valiante + 1 more
The flow of information between cortical regions depends on the excitability at each site, which is reflected in fluctuating field potentials. It remains uncertain how global changes in field potentials affect the latency and strength of cortico-cortical couplings. Therefore, we measured changes in oscillations and…
Andrei V. Bukh, Igor A. Shepelev, E. M. Elizarov, Sishu Shankar Muni + 2 more
'Eckehard Schöll' 'Galina I. Strelkova'] We study numerically the effects of time delay in networks of delay-coupled excitable FitzHugh–Nagumo systems with dissipation. Generation of periodic self-sustained oscillations and its threshold are analyzed depending on the dissipation of a single neuron, the delay time and…
Valentin Bégel, Alexander P. Demos, Michelle Wang, Caroline Palmer
Important individual differences are observed in people’s abilities to synchronize their body movements with regular auditory rhythms. We investigate whether synchronizing with a regular auditory cue is affected by each person’s spontaneous production rate (SPR) and by hearing a partner’s synchronization in a social…
Mattia Coccolo, Miguel A. F. Sanjuán
We study two coupled systems, one playing the role of the driver system and the other one of the driven system. The driver system is a time-delayed oscillator, and the driven or response system has a negligible delay. Since the driver system plays the role of the only external forcing of the driven system, we…
Christian Bick, Bob Rink, Babette de Wolff
reduction unravels delay-induced synchronization in oscillator networks Authors: ['Christian Bick' 'Bob Rink' 'Babette de Wolff'] Coupled oscillators with time-delayed network interactions are critical to understand synchronization phenomena in many physical systems. Phase reductions to finite-dimensional phase…
Malik Muhammad Ibrahim, Shazia Iram, Muhammad Ahmad Kamran, Malik Muhammad Naeem Mannan + 3 more
'Malik Muhammad Naeem Mannan' 'Muhammad Umair Ali' 'Il Hyo Jung' 'Sangil Kim'] This paper presents a methodology for synchronizing noisy and nonnoisy multiple coupled neurobiological FitzHugh-Nagumo (FHN) drive and slave neural networks with and without delayed coupling, under external electrical stimulation (EES)…
Ananth Vedururu Srinivas, Carmen C Canavier
Previously, our group used phase response curves under a pulsatile coupling assumption to determine the stability of synchrony within a cluster of neural oscillators and between two clusters of oscillators. The interactions of the within and between cluster terms were considered, demonstrating how an alternating firing…
Polina Plitchenko, Valentin Bégel, Caroline Palmer
Successful music-making requires precise sensorimotor synchronization, both in individual (solo) and joint (ensemble) social settings. We investigated how individual practice synchronizing with a temporally regular melody (Solo conditions) influences subsequent synchronization between two partners (Joint conditions).…
Mojtaba Madadi Asl
2.1### Delays change spike timings perceived at the synapse As illustrated in [F1], consider that the presynaptic neuron (1) is connected to the postsynaptic neuron (2), characterized by the coupling weight w21. If the presynaptic neuron fires at tpre = t1 and the postsynaptic neuron fires at tpost = t2, both the…
Cuirong Yang, Linwei Yu, Liangchuan Mi, Ming Yin + 1 more
However, for the right OFC/FPA (Figure [brb371683-fig-0004]), left dlPFC (Figure [brb371683-fig-0004]), and left SMC (Figure [brb371683-fig-0004]), the analysis did not yield any significant main or interaction effects on IBS (*F 0.095). 3.4### Interbrain Synchronization During Different Phases As an exploratory…
Jingxian Gu, Dobromir Dotov
When walking, we generate rich acoustic information through our footsteps. This sound stream contains information about footfall timing, dragging, loading rate, etc. The role of this endogenous auditory feedback in gait control remains underexplored. Building on work in delayed auditory feedback (DAF) for speech and on…
Satya Rungta, Aditya Murthy
Understanding how the brain transforms motor plans into the appropriate pattern of muscle activity is a central question in motor control. Whereas some neurophysiological studies in non-human primates have shown the presence of early recruitment of motor units, other studies have reported recruitment of motor units to…
Valentin Bégel, Alexander P. Demos, Caroline Palmer
Humans’ complex behavior, such as speech, music, or dance, requires us to coordinate our actions with external sounds as well as with social partners. The presence of a partner can influence individuals’ synchronization, and, in turn, social connection with the partner may depend on the degree of synchronization. We…
Sirong Lin, Zheng Pei, Bin Zhang, Huili Ma + 1 more
Assessing and improving the performance of organic light-emitting diode (OLED) materials require quantitative prediction of rate coefficients for the intersystem crossing (ISC) and reverse ISC (RISC) processes, which are determined not only by the singlet-triplet energy gap and the direct spin-orbit coupling (SOC) at a…
Authors not listed
Thermally activated delayed fluorescence (TADF) is a desirable emission mechanism that can translate into highly efficient organic light-emitting diodes (OLEDs). Conventionally, the TADF kinetics have been extracted by analysing the transient photoluminescence (PL) of the emitters in combination with measurements of…
Authors not listed
Molecular geometry is a powerful lever for steering excited-state dynamics in thermally activated delayed fluorescence (TADF) systems. We present a modular phthalimide-based emitter platform that systematically decouples donor planarity and donor–acceptor (D–A) connectivity to sculpt distinct excited-state topologies.…
Aliye Hazal Koyuncu, Jacopo Movilli, Sevil Sahin, Dmitrii V. Kriukov + 2 more
This work describes a competing activation network, which is regulated by chemical feedback at the liquid-surface interface. Feedback loops dynamically tune the concentration of chemical components in living systems, thereby controlling regulatory processes in neural, genetic, and metabolic networks. Advances in…