Round up: MAGA psychology, strange new cells, how to become a teetotaller….and much more

We said we’d stopped doing round ups: but here goes anyway:

It’s about the psychology, stupid! George Orwell once noted that peoples’ political and religious beliefs often reflect their deep underlying emotional preoccupations. Which is why facts and reason so often fail to change minds. Never have we seen this argument so convincingly demonstrated as in this this short article by Magnus Linden, Claire Campbell and Fredrik Bjorklund for The Conversation: Maga Explained: How Personality and Context Shape radical Movements

https://theconversation.com/maga-explained-how-personality-and-context-shape-radical-movements-270191?utm_medium=email&utm_campaign=Latest%20from%20The%20Conve

The Unexpected was hiding in plain sight We always like it when that happens (remember birds and dinosaurs?) Now the inestimable Nature Briefing has a tale of how astrocytes, those formerly humble and overlooked cells of the brain may be pretty important after all The Silent Cells within our brains:

Astrocytes make up one-quarter of the brain, but were long thought to be merely the supporting act for the stars of the cognitive show: neurons. Now astrocytes are emerging as key players shaping our behaviour, mood and memory. The cells seem to orchestrate the molecular mix in the environment around synapses, varying that mix according to brain state — how alert or awake the brain is, for example. This, in turn, can determine whether neurons fire in response to a signal coming across the synapse. “Neurons and neural circuits are the main computing units of the brain, but it’s now clear just how much astrocytes shape that computation,” says neurobiologist Nicola Allen.Nature | 11 min read

Can GLP help you give up the booze? Sticking with Nature Briefing, that go-to source for science news of all kinds, we noticed this riff on all those weight loss drugs everyone seems to be taking lately, No wonder there’s no one left in the pub. Can GLP-1 drugs treat addiction?

Scientists are testing whether blockbuster drugs that mimic the hormone GLP-1 — sold under brand names such as Ozempic and Mounjaro — can help to cut cravings other than those for food. For years people prescribed GLP-1s for diabetes or weight loss have shared stories about finding themselves suddenly able to shake long-standing addictions to cigarettes, alcohol and other drugs. Now, data are starting to back them up, with results from more clinical trials expected soon. “At the end of the day, the neurobiological system that is activated by rewarding substances — food, sex, drugs, rock and roll — it’s the same system,” says psychopharmacologist Roger McIntyre.Nature | 11 min read

Will we ever lose our Bonds? We have noted before how deeply in hock governments around the world have become since the 2008 crisis and COVID 19. But better minds than ours, more deeply learned, have known it all along. Here’s Richard Partington writing before the Budget, Aditya Chakraborty afterwards: plus we wanted to give you Katie Martin of the FT too, but couldn’t get past the paywall.

https://www.theguardian.com/uk-news/2025/nov/24/bond-market-power-rachel-reeves-budget?CMP=Share_AndroidApp_Other

https://www.theguardian.com/commentisfree/2025/dec/02/misleading-rachel-reeves-budget-labour-bond-markets

Action at a distance? We don’t do a ;ot of physics here, sadly, so we hope this intriguing article about quantum entanglement from Jara Juana Bermejo Vega of El Pais will go some way to making amends. English monoglots be warned: you will need your translator app

https://elpais.com/ciencia/las-cientificas-responden/2025-12-01/el-entrelazamiento-cuantico-puede-explicar-fenomenos-de-comunicacion-a-distancia-entre-gemelos-o-de-un-hijo-con-su-madre.html

Forgive us breaking our promises but we felt these stories were so intriguing that we’d toss them at you and let you make up your own minds

#neurobiology ##psychology #GLP-1 #alcohol #drugs #MAGA #politics

Conversation Article gets to the heart of why people get things wrong

You know a piece of writing is good when it explains many things, not just the ostensible subject the writer has before them. Such is the case with Edward White of the prestigious Kingston University in the UK whose article in the Conversation forms the basis for today’s blog [1] Ostensibly, the subject is Evolution. Now, we’ve always liked a bit of Evolution here. But only as abit of light relief, following it the way people follow the fortunes of Leicester City FC or the doings of celebrities.

Not so in the United states of America where the subject is of neuralgic importance as Edward points out. Huge numbers of the citizens of that country still hold that God created Man exactly according to the schemata laid out the in the early chapters of Genesis in the Hebrew Bible. And he has a barrage of statistics to explain how and why. But the point for us, gentle readers is why these people think as they do. For it explains a much wider truth, which is: no species as so supremely adapted to self delusion and to believing the lies, deceits and threats of charlatans as is Homo sapiens. And this is true in all fields-politics, religion, economics, even science and medicine(remember the MMR controversy?) The fault according to Edward is motivated Reasoning, where you start with a conclusion and work back to justify it. This ensures a high chance of error, whatever cognitive powers you may possess, as astute readers will have spotted. Why do people do this? Get this killer quote from Ed:

Brain imaging studies show that people with fundamentalist beliefs seem to have reduced activity in the dorsolateral prefrontal cortex — the brain region responsible for cognitive flexibility and analytical thinking. When this area is damaged or less active, people become more prone to accepting claims without sufficient evidence and show increased resistance to changing their beliefs when presented with contradictory information. Studies of brain-injured patients show damage to prefrontal networks that normally help us question information may lead to increased fundamentalist beliefs and reduced scepticism.

As Edward concludes: for most people learning is about who gets to define truth, and own the power that flows from it thereby

And our conclusion? We seem to be drilling down to the bedrock at last and knowing why people make and hold errors, From here at last the Progressive Community may find a way forward

[1]https://theconversation.com/why-many-americans-still-think-darwin-was-wrong-yet-the-british-dont-260709?utm_medium=email&utm_campaign=Latest%20from%20The%20Conversa

Yes, the brain can erase unpleasant memories-but what does that say about who we are?

An old friend once told us about his experiences as a child evacuee during the Second World War. Or rather, he didn’t: because those memories did not exist. Like those of millions of others, his experiences were agonisingly traumatic. And he had blotted them out altogether. News of how the brain achieves this erasure of painful memories comes in this story from the inimitable Nature Briefing called Dopamine hit overwrites memories of fear

In mice, dopamine acts on neurons in a brain region called the basolateral amygdala (BLA) to kick-start fear extinction — the overwriting of fearful memories when danger has passed. Researchers found that this dopamine is produced in a separate part of the brain called the ventral tegmental area. Humans have “the same evolutionarily conserved parts of the brain that regulate these fear responses” as mice, says neuroscientist Larry Zweifel, which hints that neurons in the BLA could be a target for drugs to help to treat fear-related conditions such as post traumatic stress disorder.Nature | 4 min read
Reference: Proceedings of the National Academy of Sciences paper

Normally we would riff enthusiastically on the hopes of a cure for PTSD, or admire the ingenuity of the scientists who have made these discoveries. But today, if you’ll forgive us, we want to go in a different direction.

For if unconscious and automatic healing processes of the brain can so affect our memories, what does that say about our consciousness? Are you really in charge of the way you remember, feel, and think? At first glance this may seem to be the abstract playground of a lot of philosophers, psychologists and neuroscientists. The trouble for us is that many religious and economic systems depend on the assumption that each of us is an autonomous individual. Who freely chooses between good and evil or cheap and expensive. And these doctrines affect the real lives of millions. As Keynes observed, every politician who prides himself on being an entirely pragmatic individual is always the intellectual slave of some long dead economist. The writers of many religious books are much older still: but millions still kill and die for their words. We freely admit to being utterly baffled by all this, and are unlikely to return to anything quite so intricate again any time soon. But next time we hear anyone declaiming confidently on things like politics or religion, we will wonder deeply about what is happening in their mind,

As promised above we will endeavour to keep away from all this philosophical stuff. But if you want to know more, the works of Timothy O’Connor, Ben G Yacobi, Benjamin Libet, Daniel Dennet and Sigmund Freud provide useful starting points.

#free will #neurology #unconscious #conscious mind #economics #religion #politics #philosophy

Neural Maps show American Science at its best. But for how much longer?

If you want to explore the potential of a vast unknown region, first make a map of it. This why many of the finest minds from the sixteenth to the nineteenth century were cartographers. The human brain, with its astronomical numbers of circuits and connections, is our century’s equivalent of an unknown continent. Where the prizes( in medical research, pharmaceuticals and lucrative spin off disciplines) will go to those who have the best idea of the layout of the territory they are exploring. Which is why it came as no surprise to find that a multi-university team of American researchers have emerged as some of the foremost neurological cartographers of the year

Hannah Devlin of the Guardian reports the work of the teams from Baylor College, The Allen Institute and Princeton who have combined different techniques to create a 3-D circuit diagram of the neurons in a mouse brain. Now, there are some riders to note: this is only a tiny portion of the brain, comprising 84 000 neurons, half a billion synapses and about 5.4 km of the neuronal equivalent of wiring. Tiny numbers compared to the colossal sizes of a human brain, or that of an elephant or a dolphin. But it’s a start. Hannah quotes experts who honestly compare this work to the human genome project around the turn of the century. We need not remind readers as intelligent as ours of all the potential which that unlocked.

So: American researchers at the cutting edge. Princeton. Big research teams. “Yawn,” they said in the newsroom, “Where’s the story?” Well the story lies in the context of the consistent cuts in science funding by a certain Donald J Trump and his Administration. [2] It’s not just the money, it’s the attacks on the confidence and independence of the institutions themselves which stunt the development of a healthy research sector. And ultimately kill the goose which has laid so many eggs.(please-no more cliches!-ed) From the 1930s onwards America thrived by taking in the best researchers, and letting them work at what they excelled. Every science magazine you picked up, every episode of the old Horizon series on BBC, had an American somewhere in it. They even got to the Moon. Now there is a real danger that all that talent, all that potential will flow elsewhere. So far the EU and UK have not really go their act together. But they are waking up to the opportunity. Perhaps the first whole-brain maps will be made in Cambridge. The English one, that is.

with thanks to J Read

[1]https://www.theguardian.com/science/2025/apr/09/us-scientists-create-most-comprehensive-circuit-diagram-of-mammalian-brain

[2] https://www.scientificamerican.com/article/trump-administration-attacks-on-science-trigger-backlash-from-researchers/

#neurology #princeton #research #donald j trump #science #biology #brain