Cortical propagation of slow-oscillation-associated waves unveiled by fast line fMRI scanning

Cortex-wide BOLD fMRI activity reflects locally-recorded slow oscillation-associated calcium waves

Spontaneous slow oscillation-associated slow wave activity represents an internally generated state which is characterized by alternations of network quiescence and stereotypical episodes of neuronal activity - slow wave events. However, it remains unclear which macroscopic signal is related to these active periods of the slow wave rhythm. We used optic fiber-based calcium recordings of local n...

Catch the dream Wave Propagation of Cortical Slow Oscillation to the Striatum in anaesthetised mice

Oscillation Patterns in Stochastic Fast-Slow Systems

The effect of Gaussian white noise on fast-slow stochastic differential equations (SDEs) can induce, modify or destroy deterministic oscillations. One key example discussed in this contribution are fast-slow systems exhibiting mixed-mode oscillations owing to the presence of a folded-node singularity. The stochastic system can be described by a continuous-space, discrete-time Markov chain, reco...

fMRI Resting Slow Fluctuations Correlate with the Activity of Fast Cortico-Cortical Physiological Connections

Recording of slow spontaneous fluctuations at rest using functional magnetic resonance imaging (fMRI) allows distinct long-range cortical networks to be identified. The neuronal basis of connectivity as assessed by resting-state fMRI still needs to be fully clarified, considering that these signals are an indirect measure of neuronal activity, reflecting slow local variations in de-oxyhaemoglob...

Perovskite photovoltaics: Slow recombination unveiled.

news & views neighbouring spins are pointing in opposite directions) as a proximity layer is a new approach in the context of magnetic topological insulators. Antiferromagnets and 'artificial antiferromagnets' (engineered heterostructures in which the coupling between ferromagnetic layers can be tuned) are widely used in magnetic memory applications. One of their advantages is the absence of a ...