PessoaBrain
pessoabrain.bsky.social
PessoaBrain
@pessoabrain.bsky.social
Luiz Pessoa, University of Maryland, College Park
Neuroscientist interested in cognitive-emotional brain
Author of The Entangled Brain, MIT Press, 2022
Author of The Cogitive-Emotional Brain, MIT Press, 2013
Neuroscience & Philosophy Salon (YouTube)
he did a "few" things...
(fame is something different)
November 24, 2025 at 7:14 PM
Thanks! But I was looking for something for PhD students applying for postdocs. Writing your fist research statement can be quite confusing.
November 24, 2025 at 3:02 PM
Reposted by PessoaBrain
how it feels to do physical activity after the age of 35
October 29, 2025 at 11:50 PM
N >=2 (max 3) is too complex for the human brain :-)
November 24, 2025 at 12:39 AM
For the topological/probability work one probably needs PhD level understanding of differential geometry and a lot of probability theory. Considered a basic introduction...
"An Elementary Introduction to Information Geometry"
by someone else; Amari doesn't write basic...
www.mdpi.com/1099-4300/22...
www.mdpi.com
November 23, 2025 at 6:15 PM
I read this in graduate school when I was sharper and probably got < 20%.
ieeexplore.ieee.org/document/58324
Mathematical foundations of neurocomputing
An attempt is made to establish a mathematical theory that shows the intrinsic mechanisms, capabilities, and limitations of information processing by various architectures of neural networks. A method...
ieeexplore.ieee.org
November 23, 2025 at 6:08 PM
Amari's work is a little like Grossberg's, there's such an immense body and it evolved a lot but let me see if I can come up with something.
November 23, 2025 at 5:58 PM
oh, I need to learn Poisson Latent Neural Differential Equations (PLNDE) and modify it for fMRI which is what I use mostly (sorry).
November 23, 2025 at 4:24 PM
Neuroscience got too enamored with *very low dimensions". Let's learn to explored structured higher dimensional spaces... (Amari to the rescue?)
Let's use very low dimensional figures as illustrations of some of the properties that are present in the high-dimensional space, not as the result itself.
November 23, 2025 at 4:22 PM
The paper does refer briefly to avoiding "homuncular solutions" to brain processing and proposing instead strategies to think in terms of distributed processes.
November 21, 2025 at 12:48 AM
That would be wonderful!
November 21, 2025 at 12:46 AM
I sent to the cmu email I found online, hope that's correct.
November 21, 2025 at 12:00 AM
But at least you have a way that you don't have to discard people that have few instances of a given trial type (e.g., error trials, super slow trials, etc). But this person is not really contributing much at all to the estimate of this trial type.
November 20, 2025 at 11:52 PM
... the estimates from other levels depending on how the model performs "pooling". So the estimate based on 2-3 trials basically is the mean estimate across participants. While some people think this is great, I don't think there's magic with data. You need lots of data to estimate things properly.
November 20, 2025 at 11:52 PM
My take is that it doesn't change things much at all with respect to the number needed for standard analysis. The main issue is that in multilevel Bayesian models, depending on how/what you model, you can estimate even with 2-3 trials per condition. But what that really means is that you "inherit"
November 20, 2025 at 11:52 PM
Thanks, this is super important!
November 18, 2025 at 6:14 PM