CCN:Tim Kietzmann talk, he introduces the neuroconnectionist program (also described in this paper I recommend by him and others https://www.nature.com/articles/s41583-023-00705-w) which uses ANNs as models of brain function.

He argues that ANNs are useful because they are in a "Goldilocks zone", a sweet spot, between biological realism vs algorithmic tractability.

The neuroconnectionist research programme - Nature Reviews Neuroscience

Artificial neural networks are being widely used to model behavioural and neural data. In this Perspective article, Doerig et al. present neuroconnectionism as a Lakatosian research programme using artificial neural networks as a computational language for expressing falsifiable theories and hypotheses about the brain computations underlying cognition.

Nature

My issue is this: for most questions I am interested in, ANNs simply aren't "biologically plausible" enough.

The claim that ANNs are in a sweet spot carries an implicit assumption about the set of questions that are interesting. Which is of course subjective!

@cian

They start with a list of desiderata for modeling aims (see page 433). You may not agree with the “Goldilocks” claim if you don’t agree with the desiderata.

@ShahabBakht @cian you're right, I don't agree with that list. It's too vague and incomplete to cover the set of processes that I think relate brain activity to behaviour

@cian

I’d love to hear what you’d add to or remove from the list.

@ShahabBakht tricky q! Maybe:

- offer insight into why biological brains contain the mechanisms and organisation that they have (why so many genetically separate types, what does the cerrebellum do, etc)

- what forces drive the differences in cognitive processes between individuals within a species or differences between species

- what is the mapping from genotype to cognitive phenotype

- which computations are done via molecular signalling vs electrical circuit dynamics

@cian Biology and biological mechanisms seem to be crucial elements of the Qs on your list. I’m not certain ANNs can be helpful when it comes to this level of biological detail.
This is also related to one of the GACs on Friday: https://gac.ccneuro.org/gacs-by-year/2023-gacs/2023-1

The Qs on your list, to me, seem to call for a more Sherringtonian approach, while the common applications of ANNs in cog neuro today seem to mostly take a Hopfieldian view. Though, a lot of discussions and questions on Friday were around whether ANNs can reconcile these two views.

GACs - 2023-1

Reconciling the dichotomy between Sherringtonian and Hopfieldian views on neural computations Organizers & Speakers at CCN 2023: Dongyan Lin, McGill University Arna Ghosh, McGill University Jonathan Cornford, McGill University James Whittington, Stanford University Tatiana Engel, Princeton

@ShahabBakht thanks, looks like I need to watch that GAC!

Not sure I agree my points are just biological mechanisms. Eg I think molecules are doing key computations for cognition. But will have a think - thanks for the provocative thoughts