As another completely useless skill, I found I can play “Leise rieselt der Schnee” in under 5 seconds on a toy piano
| WEBSITE | https://www.mpib-berlin.mpg.de/research/research-groups/erc-funded-research-group-adaptive-memory-and-decision-making |
Bernhard Spitzer
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- 87 Posts
Interested in memory, decision making, and soul, the latter more in a musical sense. ERC- and Heisenberg PI @mpib_berlin
Earl K. MillerMore evidence that working memory involves ON/OFF Activity-Silent neural dynamics and patterns of functional connectivity.
Cue-specific neuronal ensembles span intermittent rate coding of working memory
https://www.biorxiv.org/content/10.1101/2023.10.06.561121v1
Brad WybleThe fact we say "Congratulations" to publication announcements rather than "Thank you!" is a huge indicator of how badly the scholarly publication system has gone off the rails.
Blake RichardsSlowly, but surely, I am getting better at saying 'no'. It's not easy, though, and I'm still having to back-track occasionally.
To any new PIs out there, this is the absolute most important skill you have to learn!
Sebastian Michelmann🎉 Many of you already know, but I'm thrilled to be joining NYU Psychology as an Assistant Professor this fall. I'll be looking for at least one postdoc, a lab manager, and I will be recruiting PhD students. Please retweet and stay tuned for details! Our lab will investigate Interactive Dynamics of Episodic Memory using EEG, MEG, behavioral research, and computational modeling. If this excites you, please get in touch! More info and contact details: http://s-michelmann.github.io
Testing the generalization of neural representations
https://doi.org/10.1016/j.neuroimage.2023.120258
https://doi.org/10.1016/j.neuroimage.2023.120258
The lab went fast and furious for its first time at the 5x5 km team relay race at Berlin Tiergarten!
Abstract value encoding in neural populations but not single neurons
https://doi.org/10.1523/JNEUROSCI.1954-22.2023
https://doi.org/10.1523/JNEUROSCI.1954-22.2023
Abstract value encoding in neural populations but not single neurons
An important open question in neuroeconomics is how the brain represents the value of offers in a way that is both abstract (allowing for comparison) and concrete (preserving the details of the factors that influence value). Here we examine neuronal responses to risky and safe options in five brain regions that putatively encode value in male macaques. Surprisingly, we find no detectable overlap in the neural codes used for risky and safe options, even when the options have identical subjective values (as revealed by preference) in any of the regions. Indeed, responses are not just uncorrelated but occupy distinct (semi-orthogonal) encoding subspaces. Notably, however, these subspaces are linked through a linear transform of their constituent encodings, a property that allows for comparison of dissimilar option types. This encoding scheme allows these regions to have their cake and eat it too: they can encode the detailed factors that influence offer value (here, risky and safety) but also directly compare dissimilar offer types. Together these results suggest a neuronal basis for the qualitatively different psychological properties of risky and safe options and highlight the power of population geometry to resolve outstanding problems in neural coding. SIGNIFICANCE STATEMENT: To make economic choices, we must have some mechanism for comparing dissimilar offers. We propose that the brain uses distinct neural codes for risky and safe offers, but that these codes are linearly transformable. This encoding scheme has the twin advantages of allowing for comparison across offer types while preserving information about offer type, which in turn allows for flexibility in changing circumstances. We show that responses to risky and safe offers exhibit these predicted properties in five different reward-sensitive regions. Together, these results highlight the power of population coding principles for solving representation problems in economic choice.
RT @mpdcc_berlin
Today was the second #mpdcc_phd_day for our new PhD students to get to know each other. In a creative environment there were again many opportunities for community building and collaboration. @mpib_berlin
Today was the second #mpdcc_phd_day for our new PhD students to get to know each other. In a creative environment there were again many opportunities for community building and collaboration. @mpib_berlin
RT @mariam_s_aly
The hippocampus plays a role in recollection-based episodic memory
Emerging evidence suggests that it also plays a role in familiarity-based perception & working memory
These roles are compatible if you look at the computations of the hippocampus 👇🏽