43 citations · 141 across the 10 of their papers we have counts for
10 papers
Effects of T-type and L-type calcium currents on synchronized activity patterns in a model subthalamo-pallidal network
Choongseok Park, Leonid L. Rubchinsky, Sungwoo Ahn
Synchronized rhythmic oscillatory activity in the beta frequency band in the basal ganglia (BG) is a hallmark of Parkinson's disease (PD). Recent experiments and theoretical studie…
Distinct neurodynamics of functional brain networks in Alzheimer's disease and frontotemporal dementia as revealed by EEG
Sungwoo Ahn, Evie A. Malaia, Leonid L Rubchinsky
Objective While Alzheimer's disease (AD) and frontotemporal dementia (FTD) show some common memory deficits, these two disorders show partially overlapping complex spatiotemporal p…
Distinct Modes of Functional Neural Organization in Autism: Insights from Dynamical Systems Analysis of Resting-State EEG
Sungwoo Ahn, Leonid L Rubchinsky, Evie A Malaia
While differences in patterns of functional connectivity and neural synchronization have been reported between individuals on the autism spectrum and neurotypical peers at various…
Mathematical model of subthalamic nucleus neuron: characteristic activity patterns and bifurcation analysis
Choongseok Park, Leonid L. Rubchinsky, Sungwoo Ahn
The subthalamic nucleus (STN) has an important role in the pathophysiology of the basal ganglia in Parkinson's disease. The ability of STN cells to generate bursting rhythms under…
Temporal patterns of dispersal-induced synchronization in population dynamics
Sungwoo Ahn, Leonid L Rubchinsky
The mechanisms and properties of synchronization of oscillating ecological populations attract attention because it is a fairly common phenomenon and because spatial synchrony may…
Dynamics of desynchronized episodes in intermittent synchronization
Leonid L Rubchinsky, Sungwoo Ahn, Choongseok Park
Intermittent synchronization is observed in a variety of different experimental settings in physics and beyond and is an established research topic in nonlinear dynamics. When coup…
Lengths of attractors and transients in neuronal networks with random connectivities
Winfried Just, Sungwoo Ahn
We study how the dynamics of a class of discrete dynamical system models for neuronal networks depends on the connectivity of the network. Specifically, we assume that the network…
Fine temporal structure of cardiorespiratory synchronization
Sungwoo Ahn, Jessica Solfest1, Leonid L Rubchinsky
Cardiac and respiratory rhythms are known to exhibit a modest degree of phase synchronization, which is affected by age, diseases, and other factors. We study the fine temporal str…
Short desynchronization episodes prevail in synchronous dynamics of human brain rhythms
Sungwoo Ahn, Leonid L. Rubchinsky
Neural synchronization is believed to be critical for many brain functions. It frequently exhibits temporal variability, but it is not known if this variability has a specific temp…
Detecting the temporal structure of intermittent phase locking
Sungwoo Ahn, Choongseok Park, Leonid L. Rubchinsky
This study explores a method to characterize temporal structure of intermittent phase locking in oscillatory systems. When an oscillatory system is in a weakly synchronized regime…