I create computational models to build hypothesis and make predictions.
Philosophy of science aficionado
I'm very happy to join @karalis-lab.bsky.social at @institutducerveau.bsky.social 🇫🇷, where I will explore how neuromodulation shapes circuit dynamics. Stay tuned!
I'm very happy to join @karalis-lab.bsky.social at @institutducerveau.bsky.social 🇫🇷, where I will explore how neuromodulation shapes circuit dynamics. Stay tuned!
Follow us if you are interested on cortico-striatal activity and its neuromodulation!
Or if you love to see in vivo whole-cell patch clamp recordings from time to time 😉
Follow us if you are interested on cortico-striatal activity and its neuromodulation!
Or if you love to see in vivo whole-cell patch clamp recordings from time to time 😉
As an example, increasing gabaergic conductance lengthened the Up state and increased the nº of peaks, without impacting the subthreshold properties of the neighbor population (color code above).
As an example, increasing gabaergic conductance lengthened the Up state and increased the nº of peaks, without impacting the subthreshold properties of the neighbor population (color code above).
So, in the end, which SWA properties are the result of local features and relatively blind to the global state of the network? Changes in the E/I balance had a local impact on the length and number of peaks in the Up states (Diplets from elifesciences.org/articles/60580)
So, in the end, which SWA properties are the result of local features and relatively blind to the global state of the network? Changes in the E/I balance had a local impact on the length and number of peaks in the Up states (Diplets from elifesciences.org/articles/60580)
This allowed us to created a middle ground for discussion between a physiological perspective and a dynamical system viewpoint. We could explore the prediction of mean-field theories and connect them to mechanistically precise substrates.
This allowed us to created a middle ground for discussion between a physiological perspective and a dynamical system viewpoint. We could explore the prediction of mean-field theories and connect them to mechanistically precise substrates.
We sequentially manipulated the glutamatergic and gabaergic currents in our model, as well as the outward rectification currents. We characterized how they impacted the SWA, the influence of long-range connections, and if the changes remained local.
We sequentially manipulated the glutamatergic and gabaergic currents in our model, as well as the outward rectification currents. We characterized how they impacted the SWA, the influence of long-range connections, and if the changes remained local.
We performed in vivo experiments, locally increasing the frequency of the SWA in the caudal cortical pole and showed how this reverses the direction of the travelling waves and increased the frequency of Up states along the cortex.
We performed in vivo experiments, locally increasing the frequency of the SWA in the caudal cortical pole and showed how this reverses the direction of the travelling waves and increased the frequency of Up states along the cortex.
We show how differences in excitability became difficult to infer when populations are connected, as the most excitable one will impose its own rhythm, impacting global firing dynamics and subthreshold parameters.
We show how differences in excitability became difficult to infer when populations are connected, as the most excitable one will impose its own rhythm, impacting global firing dynamics and subthreshold parameters.
To do so we built conductance-based models of neuronal populations following the work of Albert Compte journals.physiology.org/doi/full/10....), and extended it to multiple connected populations with heterogeneous levels of excitability.
To do so we built conductance-based models of neuronal populations following the work of Albert Compte journals.physiology.org/doi/full/10....), and extended it to multiple connected populations with heterogeneous levels of excitability.
I tried it with my PubMed profile and this is the result
I tried it with my PubMed profile and this is the result