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#neuroscience

53 posts44 participants5 posts today
Public
Albert Cardona

Sometimes one stops to just look at the data. And the software user interface. They are beautiful.

We are looking at a cross section of the #Drosophila larval brain, near the brain commissure, where hundreds of neurons (magenta: their reconstructed skeletons) cross from one brain hemisphere to the other. To the right, a 3D rendering of multiple neurons, a pair of which cross the midline in a U-shaped bend.

Our CATMAID software is web-based, in other words it's just a website that accesses remote data. I credit it's sleek design to @herrsaalfeld – author of the early, "Ice Age" CATMAID and its blue tones – who at some point in his life studied "medieninformatik" and has always had a penchant for art.

See our images and fly neurons here, kindly hosted by the #VirtualFlyBrain :
l1em.catmaid.virtualflybrain.o

Screenshot of CATMAID software, with content as described in the main post.
#neuroscience#CATMAID
Public
Earl K. Miller

New results!
Working memory is read out via a theta (3-6 Hz) traveling wave sweeping across cortex.
Working memory readout varies with frontal theta rhythms
biorxiv.org/content/10.1101/20
#neuroscience

bioRxiv · Working memory readout varies with frontal theta rhythmsIncreasing evidence suggests that attention varies rhythmically, phase-locked to ongoing cortical oscillations. Here, we report that the phase of theta oscillations (3 to 6 Hz) in the frontal eye field (FEF) is associated with temporal and spatial variation of the read-out of information from working memory (WM). Non-human primates were briefly shown a sample array of colored squares. A short time later, they viewed a test array and were rewarded for identifying which square changed color (the target). Better performance (accuracy and reaction time) varied systematically with the phase of local field potential (LFP) theta at the time of test array onset as well as the target location. This is consistent with theta scanning across the FEF and thus visual space from top to bottom. Theta was coupled, on opposing phases, to both spiking and beta (12 to 20 Hz). These results could be explained by a wave of activity that moves across the FEF, modulating the readout of information from WM. ### Competing Interest Statement The authors have declared no competing interest.
Public
Dana Foundation

Read the winning articles from the Loyola University Chicago Program for Neuroscience and Society’s journalism competition. Loyola undergrads report on topics related to addiction, neuromarketing, and depression. The second round of the Neuroscience Journalism Competition is open now, through May 15. Students at universities nationwide are invited to submit!

#neurosociety #scicomm #neuroscience #neuroethics

dana.org/article/empowering-st

Dana FoundationEmpowering Student Journalism on Neuroscience
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