scholarly journals Filament dynamics in planar chemical gardens

2021 ◽  
Vol 23 (9) ◽  
pp. 5222-5235
Author(s):  
Luis A. M. Rocha ◽  
Julyan H. E. Cartwright ◽  
Silvana S. S. Cardoso

Modelling describes oscillatory dynamics of precipitate filaments; growth of an ensemble of filaments is a self-organized dispersion mechanism.

Author(s):  
György Buzsáki ◽  
Antonio Fernández-Ruiz

Information in the entorhinal-hippocampal system is transferred through alternating layers of recurrent excitatory and largely parallel-organized networks, allowing the iterative integration and segregation of messages. Local computations require time, and the speed of layer-to-layer transfer of information is largely determined by the dynamics of network oscillations. Temporal integration within coherent theta oscillation sets constraints on the resolution of both spatial and nonspatial information. Theta and high-frequency oscillatory dynamics can generate self-organized assembly sequences that reflect a compressed version of experienced firing patterns during exploration and learning. The strength and theta phase preference of upstream drivers cooperate with local circuit mechanisms in controlling the timing of spikes in hippocampal circuits in the service of memory and spatial navigation.


2018 ◽  
Vol 20 (2) ◽  
pp. 784-793 ◽  
Author(s):  
Fabian Brau ◽  
Florence Haudin ◽  
Stephanie Thouvenel-Romans ◽  
Anne De Wit ◽  
Oliver Steinbock ◽  
...  

Once rescaled by the preferred wavenumber ω* of the curvature power spectrum, both filiform corrosion and chemical garden filaments display similar dynamics.


2019 ◽  
Vol 42 ◽  
Author(s):  
Lucio Tonello ◽  
Luca Giacobbi ◽  
Alberto Pettenon ◽  
Alessandro Scuotto ◽  
Massimo Cocchi ◽  
...  

AbstractAutism spectrum disorder (ASD) subjects can present temporary behaviors of acute agitation and aggressiveness, named problem behaviors. They have been shown to be consistent with the self-organized criticality (SOC), a model wherein occasionally occurring “catastrophic events” are necessary in order to maintain a self-organized “critical equilibrium.” The SOC can represent the psychopathology network structures and additionally suggests that they can be considered as self-organized systems.


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