From Functional Organization to Vascular Structure in the Primate Visual Cortex Using Ultrasound Imaging
Dessailly, E.; Alcala, I.; Provansal, M.; Arab, R.; ZUCKER, N. S. J.; Fallegger, F.; Pouget, P.; Tanter, M.; Picaud, S.; Arcizet, F.
Show abstract
The primary visual cortex (V1) provides an exceptional structure to assess information encoding in the cortex thanks to its highly controlled visual input. However, optical measures and electrophysiology are limited to very superficial layers while fMRI provides low spatial resolution. Taking advantages of functional ultrasound imaging (fUSi), we examined large volumes of V1 in two awake non-human primates. We showed the conservation of retinotopic maps within deep sulcal regions and across cortical layers. We then assessed the cortical point image and compared it to its vasculature distribution through ultrasound localization microscopy (ULM). We further identified the smallest vascular compartment underlying the signal. Together, these results establish fUSi, complemented by ULM, as a minimally invasive mesoscale approach for resolving functional organization of the cortex in deep sulci.
Matching journals
The top 4 journals account for 50% of the predicted probability mass.
Similar papers in this journal
Similar papers in this journal
- Monkey EEG links neuronal color and motion information across species and scales 94%
- Functional imaging of nine distinct neuronal populations under a miniscope in freely behaving animals 94%
- Attentional amplification of neural codes for number independent of other quantities along the dorsal visual stream 93%
Similar papers in this journal
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.