Evan Gordon Profile picture
Assistant Professor, Washington University in St. Louis Radiology department. Neuroscientist studying network brain organization in health and disease.
Jun 3 27 tweets 8 min read
I want to put forward some ideas about *cortical areas*, and why we should care about them when we do neuroimaging.
These ideas can be seen in more extended form in a perspective () led by Steve Petersen, with @GaganWig, @stevenmnelson, and Ben Seitzman. doi.org/10.1016/j.neur…
Image Almost everyone using neuroimaging approaches (like fMRI) is working in the >100 year old field of neuroscience. But not everyone has received formal neuroscience training, and some (e.g. students) may have fuzzy ideas about the field’s principles. This poll from 2020 shocked me! Image
Apr 19, 2023 44 tweets 19 min read
We’ve identified the somato-cognitive action network (SCAN), a newly recognized network within human primary motor cortex that disrupts the famous—but incorrect—motor homunculus, and has strong connections to high-level control networks. Now out in @Nature nature.com/articles/s4158… A somato-cognitive action n... We used data from single individuals, large-N group averages, children, infants, neonates, stroke patients, and macaques, including resting fMRI, task fMRI, diffusion, and structure, to map primary motor cortex in exquisite detail. We were surprised at what we found!
Oct 28, 2022 41 tweets 21 min read
We’ve identified the Mind-Body Interface, a novel distributed network within human primary motor cortex that disrupts the famous—but incorrect—motor homunculus, and that exhibits strong connections to high-level control networks. Preprint here: biorxiv.org/content/10.110… We used data from single individuals, large-N group averages, children, infants, neonates, stroke patients, and macaques, including resting fMRI, task fMRI, diffusion, and structure, to map primary motor cortex in exquisite detail. We were surprised at what we found!
Apr 12, 2021 20 tweets 7 min read
Excited to announce our newest preprint identifying subnetworks that connect the frontal cortex to striatum within individual human brains. biorxiv.org/content/10.110… We know from decades of tract tracing work in non-human primates that the striatum receives strong inputs from frontal cortex, and these projections have an ordered rostral-caudal organization. See the amazing body of work by Suzanne Haber. ncbi.nlm.nih.gov/pmc/articles/P…