Monchy Noémie

PhD in cognitive neurosciences 🧠
aperiodic activity, brain oscillations, EEG, tACS, Parkinson’s disease
she/her

[Monchy Noémie @MonchyNoemie]

Functional connectivity: oscillatory coupling or aperiodic activity?

This is the question we addressed in this brand-new preprint, fresh off the press today! 📜

https://t.co/MuuIFbhoJx

[Monchy Noémie @MonchyNoemie]

Proud to share our latest paper in Journal of Neuroscience, showing how aperiodic activity can influence functional connectivity estimates in EEG/MEG!

Don’t miss @JoanDuprez presenting this work with @BradleyVoytek at #SfN2025

https://t.co/TsNT0tCCOP

[Monchy Noémie @MonchyNoemie]

Last week, I had the opportunity to attend #NeuroFrance2025 in the vibrant city of Montpellier and present one of the key topics of my thesis: On the importance of considering aperiodic activity for functional connectivity estimations.

Such a great and inspiring experience!

[Tom Donoghue @Tomdonoghue]

📜🎉 I have a new preprint: a systematic review of clinical investigations of aperiodic activity!

I reviewed 143 reports from across 35 disorders, to summarize current results, evaluate current practices, and make some recommendations for future work:

https://t.co/adyypFEx7M

[Monchy Noémie @MonchyNoemie]

@brainsignals I'm not quite sure I understand the meaning of the question. Do you mean 'periodic' instead of 'aperiodic' in your sentence?

[Monchy Noémie @MonchyNoemie]

Functional connectivity: oscillatory coupling or aperiodic activity?

This is the question we addressed in this brand-new preprint, fresh off the press today! 📜

https://t.co/MuuIFbhoJx

[Monchy Noémie @MonchyNoemie]

@matteo_brainnet Thank you for sharing! I will take a closer look at this.

[Monchy Noémie @MonchyNoemie]

@AndrazMatkovic Thank you for sharing! Interesting study that aligns with the conclusions of our findings: considering aperiodic activity is essential for an accurate representation of the underlying physiological mechanisms.

[Monchy Noémie @MonchyNoemie]

@Pascual_Marqui Thank you for this comment, it would indeed be enriching to cite your preprint. Our results showed that resting-state functional connectivity analysis usually considers all frequency bands, while for many of them (except alpha), there is no oscillation.

[Monchy Noémie @MonchyNoemie]

These findings suggest that most functional connectivity studies focusing on resting state actually reflect aperiodic networks instead of oscillations-based networks.

[Monchy Noémie @MonchyNoemie]

We found that more than 99% of delta, theta, and gamma functional networks, more than 90% of beta functional networks and between 23 and 55% of alpha functional networks were actually driven by aperiodic activity in resting state.

[Monchy Noémie @MonchyNoemie]

Overall, these findings highlight the importance of considering aperiodic activity contributions in brain disorders.

Huge thanks to the co-authors and especially to my supervisors @Neuromaths & @J_Duprez

[Monchy Noémie @MonchyNoemie]

I am very happy to share with you my first article as part of my PhD, entitled 'Changes in electrophysiological aperiodic activity during cognitive control in Parkinson’s disease’.

https://t.co/qjW8mjlmhj

[Monchy Noémie @MonchyNoemie]

Our results showed that Parkinson’s disease patients had lower behavioural performance as well as greater aperiodic offsets in parieto-occipital regions, suggesting increased excitability. We also demonstrated that aperiodic parameters differed depending on arousal state.

[Monchy Noémie @MonchyNoemie]

Excited to take part in #CuttingGardens in Caen, great opportunity to get new ideas off the ground!

[Monchy Noémie @MonchyNoemie]

Happy to share with you our fresh preprint about EEG aperiodic activity in Parkinson’s disease 🧠

Great first experience working with @J_Duprez @Neuromaths @bradleyvoytek @jfhouvenaghel

https://t.co/xd7GI4M2dX

[Monchy Noémie @MonchyNoemie]

What a pleasure to take part in @VisceralMind1 ! A week full of drawings, human brain dissections and enriching talks.
Thank you all for this amazing experience and for sharing your expertise!

[Monchy Noémie @MonchyNoemie]

Such an enriching experience for my first BioEM! Thank you @J_Duprez and @deniq for your great support!

#BioEM23

[Joan Duprez @J_Duprez]

Great presentations by @MonchyNoemie and Gabriel Gaugain at #BioEM2023 in Oxford on tACS in #Parkinsons disease and variability in tissue dielectric properties in tACS induced Efield. A pleasure meeting there with @deniq, the collegues from IETR and the BioEM community!