Effects of Transcranial Ultrasound Stimulation on Brain Networks in Macaques
Author Information
Author(s): Gatica Marilyn, Atkinson-Clement Cyril, Mediano Pedro A. M., Alkhawashki Mohammad, Ross James, Sallet Jérôme, Kaiser Marcus
Primary Institution: University of Nottingham
Hypothesis
How does transcranial ultrasound stimulation (TUS) reorganize brain networks in macaques?
Conclusion
Transcranial ultrasound stimulation produced target-specific changes in brain network interactions, affecting both redundancy and synergy across different networks.
Supporting Evidence
- TUS produced specific changes in the limbic network at FPC-TUS and the motor network at SMA-TUS.
- Changes in brain network interactions were consistent across the three macaques.
- TUS decreased the structural and functional coupling independent of the stimulated target.
- The study utilized a novel metric to quantify neural information processing.
Takeaway
This study looked at how a special type of sound treatment can change how different parts of a monkey's brain work together. It found that the treatment can make some brain areas work more closely together while making others work less so.
Methodology
The study analyzed resting-state fMRI data from three macaques before and after TUS applied to two brain targets, measuring changes in redundancy and synergy in brain networks.
Potential Biases
Potential bias due to the small sample size and the effects of anesthesia on brain activity.
Limitations
The study was limited by a small sample size of three macaques and the use of anesthesia, which may affect functional connectivity.
Participant Demographics
Three macaques were used in the study.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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