albertcardona, (edited )
@albertcardona@mathstodon.xyz avatar

"The brain: what for?" – my seminar for "everyone else" at the #MRCLMB. Featuring brainless maggots and more.

https://www.youtube.com/watch?v=mcZwH5MYkFU

#neuroscience #ScienceForEverybody

brembs,
@brembs@mastodon.social avatar

@albertcardona

Great presentation!

It struck me that your first couple of minutes start out citing a similar example to how I sometimes start my presentations:

https://www.youtube.com/watch?v=rLdqEgNYsws

Great minds think alike! 😇

I'm sure ou're aware of Jay Hirsh's classic work in decapitated flies?

https://doi.org/10.1073/pnas.94.8.4131

I'm sure you're also aware of the decades-long debate about "command-neurons":

https://en.wikipedia.org/wiki/Command_neuron
or

https://www.sciencedirect.com/science/article/pii/0166223681900254

but maybe not everybody on here is.

albertcardona,
@albertcardona@mathstodon.xyz avatar

@brembs

"Use it or lose it", indeed! Great example, the squirts. And quite unique, as they aren't parasites.

On command neurons: one has to simplify the message. I am mindful of the very old debate, see "The command neuron concept", Kupfermann and Weiss 1978 https://mcb.berkeley.edu/labs/zucker/PDFs/Zucker_BehavBrainSci1,35.pdf

My favourite example of brain-independent behaviours are in Harris et al. 2015 https://elifesciences.org/articles/4493 which features amusing videos of thermogenetically induced behaviours in decapitated . For example, this full take off and flight sequence (video 9, hemilineage 7B): https://static-movie-usa.glencoesoftware.com/mp4/10.7554/627/dbb3419a41e347d8a34fe63835a0185d6f141ee0/elife-04493-media9.mp4

kofanchen,
@kofanchen@drosophila.social avatar

@albertcardona @brembs just shared this thread to the fly groups trainee in my dept😎

albertcardona,
@albertcardona@mathstodon.xyz avatar

@kofanchen @brembs

Must say I wasn't sure how to shape the message for an audience of non-neuroscientists, but it resulted: got many questions and discussions continuing well into the apéro afterwards and beyond. An amazing feeling, to be able to explain in as lay terms as I could muster what the brain is for and some broad dashes of how it works. Here I credit years of experience as a university lecturer, although undergraduates in biology aren't quite representative of the general public.

Likewise I recently gave a seminar for young teenagers in Catalan – an even higher bar, not just for the age of the audience but because while Catalan is my native language it hasn't been my professional language since I completed graduate school in Barcelona in mid 2005. Quite the feeling to start a talk not knowing whether I'd find the right terms and idioms to deliver the message across.
https://www.youtube.com/watch?v=SHDgKb2fLmo

brembs,
@brembs@mastodon.social avatar

@albertcardona @kofanchen

lol, I can relate! My German lectuzres are often full of English words... 😇

albertcardona,
@albertcardona@mathstodon.xyz avatar

@brembs @kofanchen

It's only understandable. But I do feel strongly that we ought to be translating text books or writing them up in our native languages to begin with. Looking forward to it as soon as kids take off – still quite some years to go but not that many.

kofanchen,
@kofanchen@drosophila.social avatar

@albertcardona

"Here I credit years of experience as a university lecturer, although undergraduates in biology aren't quite representative of the general public."

Also Cambridge undergraduate are not normal undergraduate either 😅

@brembs

albertcardona,
@albertcardona@mathstodon.xyz avatar

@kofanchen @brembs

True. Recently interviewed a number of 17-year-olds for Pembroke college, and I was shocked and humbled. These teenagers know at 17 way more than myself or anybody in my circles at their age. Most of them (~75%) from state schools. Gives me hope for the future.

jekely,
@jekely@biologists.social avatar

@brembs @albertcardona
But, please, please stop spreading this urban legend that adult sea squirts do not have behaviour and a nervous system. They do, furthermore: "most parts of the ascidian larval CNS, except for the tail nerve cord, are maintained during metamorphosis and recruited to form the adult CNS"

some refs: https://www.nature.com/articles/nature09631
https://cdnsciencepub.com/doi/abs/10.1139/z04-177

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