Global waves synchronize the brain's functional systems with fluctuating arousal

RV Raut, AZ Snyder, A Mitra, D Yellin, N Fujii… - Science …, 2021 - science.org
We propose and empirically support a parsimonious account of intrinsic, brain-wide
spatiotemporal organization arising from traveling waves linked to arousal. We hypothesize …

Wave-like dopamine dynamics as a mechanism for spatiotemporal credit assignment

AA Hamid, MJ Frank, CI Moore - Cell, 2021 - cell.com
Significant evidence supports the view that dopamine shapes learning by encoding reward
prediction errors. However, it is unknown whether striatal targets receive tailored dopamine …

Spatiotemporal patterns of neocortical activity around hippocampal sharp-wave ripples

J Karimi Abadchi, M Nazari-Ahangarkolaee, S Gattas… - elife, 2020 - elifesciences.org
A prevalent model is that sharp-wave ripples (SWR) arise 'spontaneously'in CA3 and
propagate recent memory traces outward to the neocortex to facilitate memory consolidation …

Mesoscale calcium imaging in vivo: evolution and contribution to developmental neuroscience

T Guillamón-Vivancos, D Vandael, D Torres… - Frontiers in …, 2023 - frontiersin.org
Calcium imaging is commonly used to visualize neural activity in vivo. In particular,
mesoscale calcium imaging provides large fields of view, allowing for the simultaneous …

Low-dimensional spatiotemporal dynamics underlie cortex-wide neural activity

CJ MacDowell, TJ Buschman - Current Biology, 2020 - cell.com
Cognition arises from the dynamic flow of neural activity through the brain. To capture these
dynamics, we used mesoscale calcium imaging to record neural activity across the dorsal …

Detection and analysis of spatiotemporal patterns in brain activity

RG Townsend, P Gong - PLoS computational biology, 2018 - journals.plos.org
There is growing evidence that population-level brain activity is often organized into
propagating waves that are structured in both space and time. Such spatiotemporal patterns …

Learning motion representation for real-time spatio-temporal action localization

D Zhang, L He, Z Tu, S Zhang, F Han, B Yang - Pattern Recognition, 2020 - Elsevier
The current deep learning based spatio-temporal action localization methods that using
motion information (predominated is optical flow) obtain the state-of-the-art performance …

Go with the FLOW: visualizing spatiotemporal dynamics in optical widefield calcium imaging

NJ Linden, DR Tabuena… - Journal of the …, 2021 - royalsocietypublishing.org
Widefield calcium imaging has recently emerged as a powerful experimental technique to
record coordinated large-scale brain activity. These measurements present a unique …

Sequentially activated discrete modules appear as traveling waves in neuronal measurements with limited spatiotemporal sampling

Y Orsher, A Rom, R Perel, Y Lahini, P Blinder… - Elife, 2024 - elifesciences.org
Numerous studies have identified traveling waves in the cortex and suggested they play
important roles in brain processing. These waves are most often measured using …

Dopamine waves as a mechanism for spatiotemporal credit assignment

AA Hamid, MJ Frank, CI Moore - BioRxiv, 2019 - biorxiv.org
Significant evidence supports the view that dopamine shapes reward-learning by encoding
prediction errors. However, it is unknown whether dopamine decision-signals are tailored to …