Textbook Group meeting for Parr, Pezzulo, Friston 2022 .

hello it is july 7th 2022 it is cohort one textbook group week 10 chapter five so we're having the first discussion of chapter five we'll have two weeks of discussing chapter five then in our last two weeks of july talk about more general thoughts that we have on chapters one through five and look forward to the second half of the book um [Music] here there's two new columns this first one is if you'd like to join for chapters one through five cohort two beginning in september 22 and that will be in parallel with also this first cohort continuing for chapters six through ten so just put a check mark if you want to stay in otherwise we won't like include you in that cohort okay so um [Music] there's only a few questions prepared for chapter five so let's start with any general thoughts that people had about chapter five like how is this chapter similar or different from the previous ones and what is the function of chapter five here or what what did they think was an important overall aspect of this chapter and then of course anyone who can capture questions that people are asking here just add them but other than that it would be awesome to hear like what did people think chapter five was doing or what did they wonder about about the material or related to it ali and then anyone else uh i think chapter five uh needs a lot of neurobiological background and without uh necessary requisites uh it can be probably daunting chapter and unlike other chapters which are at least the previous chapters uh which concern themselves with mathematical formalisms uh here in chapter 5 for the very first time we encounter some empirical evidence for uh or the empirical uh reasons behind uh modeling active inference as such so it's a very important chapter in my opinion but at the same time without any prior neurobiological background uh it could be a really daunting chapter as well nice thanks for the summary uh mike yeah it was an interesting choice to go all the way to the human brain to illustrate how these concepts would map to biological systems as opposed to starting with more simplistic organisms and kind of working up from there yeah very nice point any other overview thoughts and then we can just like scan through it and look at the order of a few things and then continue to write questions again like as you're hearing them or like as you're just wondering but let's um yeah hear any other general thoughts if anyone wants to raise their hand and then look at the order of the chapter okay well the chapter is titled message passing in neurobiology message passing was brought up in a previous chapter in this box 4.1 in a formal yet slightly non-standard notation without examples just generally the quote anyone have any thoughts on jeff yes i kind of disagree with the quote i i think uh recently we've we've learned that the plants actually uh sense and act on their their their uh on what they they detect in the environment for example uh certain trees when they're being munched on by um say like giraffes will emit uh molecules that will disperse and other trees that would that sense these uh this essentially an alert signal will start producing uh compounds in the leaves that make the leaves taste very bitter and thus discouraging uh foraging [Music] and so forth and so on and also we you know i think it's clear that plants sense and act and respond to their environment and act in order to maintain their integrity or as individuals or as uh as groups in the example i just mentioned nice agreed oh also the quote might have like a little bit of hyperbole slash comedy like two types of animals plants so it's about nervous systems ali uh yeah and uh one other thing about rodolfo linus is um in one of his most famous books eye of the cortex from neurons to self um actually he describes thinking uh as an internalized movement uh and it's a very interesting way to describe uh thinking in my opinion and uh it directly relates to this active…