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Un cervello dell'età della pietra nell'era degli schermi. Affrontare distrazione e ansia senza farsi travolgere

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Il nostro cervello non è molto diverso da quello degli antenati dell'età della pietra. Ecco perché, secondo il pluripremiato neurologo Richard Cytowic, è così poco attrezzato per resistere alle incursioni delle Big Tech: a livello fisiologico il cervello umano è ancora programmato per le esigenze molto diverse di un mondo preistorico. La funzione della dopamina negli istinti fondamentali di sopravvivenza, il ruolo delle emozioni nella competizione e, soprattutto, il riflesso di orientamento, uno dei circuiti inconsci che focalizza l'attenzione, sono alla base del funzionamento del cervello, oggi come allora, e sono i responsabili delle nostre dipendenze da smartphone. Con lo stile coinvolgente dei suoi popolari TED Talk, l'autore illustra come funziona la programmazione cerebrale, rivela perché siamo dipendenti dagli schermi e perché i cervelli giovani e in via di sviluppo sono particolarmente vulnerabili; infine, spiega perché abbiamo bisogno di silenzio e cosa possiamo fare per opporci. Conoscere questi meccanismi è il primo passo per cambiare il modo in cui usiamo la tecnologia, resistere al suo potere di assuefazione e riprendere il controllo che abbiamo perso sul nostro tempo. "Richard E. Cytowic ha cambiato il modo di pensare al cervello umano." Oliver Sacks, autore di L'uomo che scambiò sua moglie per un cappello

336 pages, Paperback

Published March 4, 2025

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About the author

Richard E. Cytowic

12 books105 followers
Richard E. Cytowic, MD, MFA is a neurologist best know for bringing synesthesia back into the scientific mainstream in 1980. The trait of crossed senses is now seen as important to understanding how brains perceive.

Wednesday Is Indigo Blue: Discovering the Brain of Synesthesia (with David Eagleman) won the 2011 Montaigne Medal.

Cytowic also writes non-fiction and fiction, and received his MFA in creative writing from American University. The Pulitzer nominee's work has appeared in The Washingtonian, New Scientist, and the New York Times Magazine.

His Blog at Psychology Today is The Fallible Mind: Emotion, perception, and other tricks of the brain

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Displaying 1 - 11 of 11 reviews
Profile Image for Silvia.
371 reviews30 followers
October 5, 2025
Ok Computer

Che il costante permanere attaccati agli schermi- del cellulare in primis- non sia un'abitudine virtuosa è il buon senso (antichissima forma di saggezza, ora avvertita come polverosa e demodé) a suggerirlo.
Questo saggio ben scritto e chiaro anche quando parla di neuroscienza e ricadute cerebrali della dipendenza da schermi, però, acclara- dati alla mano, corredati di un'imponete bibliografia- il mutamento antropologico in atto.
Concetti come autismo digitale, ansia da separazione (dai devices), depressione e ansia si connettono in una rete, ironicamente dipendente dalla Rete.
Molto ci sarebbe da dire, molti i dati che mi hanno colpito (culle con schermi incorporati; scuole Waldorf senza connessioni per i figli dei magnati della Silicon Valley; ricadute a lungo raggio dell'aver perso l'uso del corsivo...e molte altre cose che sembrano antichissimi retaggi di un tempo che fu, ma che hanno prodotto e producono conseguenze) e per i quali mi sembra che questo saggio- molto fuori dalla mia bolla solita e per il quale ringrazio chi me lo ha suggerito- vada letto: soprattutto da parte dei genitori e/o di chi lavora con i bambini, coi giovani, nella formazione. Senza la prosopopea di considerarci immuni, noi adulti: anzi, almeno nel mio modestissimo caso. Il nuovo proposito, maturato a seguito della lettura, è quello di vedere le persone: e di spegnere lo smartphone, quando sono con loro.
Profile Image for Diana.
270 reviews4 followers
December 25, 2025
When I picked up this book, I was already on board with Cytowic's argument--I wanted to learn more about how technology could be contributing to my fatigue. Unfortunately, this manuscript is a mess on the book, chapter, and sometimes even paragraph level. Shockingly so, because to be a scientist the author had to master laying out his thoughts in order.

For example, take chapter 18. In good news, it recaps in bullet list form all the facts and arguments Cytowic cycled through at nauseam in chapters 1-17. (Really though, why make it 17 different chapters if you will cover the same thing in each one).
In bad news, the bullet list was actually supposed to be a list of things "you can do for yourself" to cope with technology. Some bullet points were about that, like "don't use technology while you eat" or "talk to people in person or on the phone." ("Read books" is bullet point 4 and then again 7, for some reason.)
But more than half of the bullet points is things like "Two separate networks lie behind reward and pleasure. ... Unfortunately, addictions that successfully commandeer the dopamine network can alter it permanently for the worse." Sir, did you forget what you were supposed to be talking about?

The rest of the book similarly resembles a first draft. It needed some cleaning up and structuring. Even though I agreed with the author's ideas, I was constantly annoyed when reading.

PS. This is not the place to critique the actual arguments in the book, nor do I have the training to do so, but one detailed made my social historian blood boil. The biggest message in this book is that children shouldn't be exposed to technology at an early age. Cytowic brings up socioeconomic reasons for parents to over-rely on technology exactly once (pp. 226-228). And this reason is that less affluent parents "haven't yet heard the alarms." Really? You could not think of any other contributors?
Profile Image for Janet Ford.
25 reviews3 followers
November 23, 2024
This book is for anyone who knows that their relationship with technology is toxic. If you are on the fence about leaving social media, disabling notifications, or making any other changes in your technical consumption, this book will help you pull the trigger and reach freedom.
Profile Image for Mike Starnes.
39 reviews1 follower
December 1, 2024
If I could write a book on this subject (which I have considered) it wouldn’t look much different to this. I’ve said for a while that for all the good technology can do, it’s coming at a consequence for the next generation. The danger is that we stop evolving and actually devolve if we continue down this path of instant gratification, digital overload and screen addiction. Enjoyed the book - affirmed much of what I believe.
3 reviews1 follower
March 24, 2026
An incredible book. Dr. Cytowic tosses the easy moral judgement: "Screens are bad" and instead probes us to take a scientific approach - "What impact does blue light from screens have on our circadian rhythm? How does Ipad/smartphone use impact empathy and learning in children and infants?" or roughly along those lines.

We have reached a staggering omnipresence of "smart" devices today. The recent developments in Artificial Intelligence (which the author does not touch on unfortunately) brings to question: how much of today's brainpower do we want to outsource to machines? Is there harm in an AI generated cover letter? or does it start there?

Cytowic explains how our "stone age" brains evolved to analyze for novelty in our environment (colors, changes) and how tech companies use this in their greedy ploy to advertise to our eyeballs every second.

After reading this book I purchased the Brick (not an ad lol) a device that allows you to restrict certain apps of your choice( like instagram) for time periods until you physically tap your phone to this block. It has helped me immensely. I ended up getting a flip phone and leaving my old iphone at home to use as a tablet essentially.
Profile Image for Marina Furmanov.
261 reviews1 follower
November 14, 2024
While his points are valid, they assume all negative impacts of devices with the precedent that our brains are not equipped to handle this screen age. The future will in fact have more technology, not prioritize memorization and provide the ability to learn at at earlier age if we allow it. While it’s true that devices build the instant gratification vs encouraging meaningful experiences and some believe this ultimately gave rise to the recreational drug epidemic, we might benefit from embracing this age vs pushing it away. Devices will actually be more of an extension of the human brain in the future and I think we need to focus on figuring out how to incorporate this new tool more successfully. I appreciate the authors perspective and knew what it was going on but I heard a lot more opportunity in his writing than downsides to the screen age.
Profile Image for Lingwijournal.
124 reviews4 followers
January 13, 2025
The book touches on many great points about how our brain is unprepared to all the screens and the swirl of information coming from there.

I also hope that research on how much learning to write with your hands even in this digital age is detrimental to a child's development can reach more parents. My mum's a teacher and she can see the effects of this on a large scale in school.

This book however, just like all the other pop science books out there, could have been well enough as a longer video or article.
78 reviews2 followers
December 2, 2024
The idea that people are forming emotional attachments to their devices and treating them as extensions of themselves reflects a significant cultural and psychological shift in the digital era. . As technology has become an integral part of daily life, our smartphones, tablets, and other devices are no longer just tools; they have become companions, memory keepers, and personal assistants.

This book is like a wake up call.
Profile Image for Simone Gherbe.
52 reviews1 follower
August 24, 2025
Allungare il brodo…

Poteva scrivere molte meno pagine. Certe cose sono interessanti, per altre non posso fare altri che consigliargli un buon neurologo. Inutile che cerchi di rendersi simpatico.

Per me ha perso tutta la sua credibilità quando ha parlato di DNA spazzatura, argomento che ha portato la sua presunta esperienza ad un livello di età della pietra. Non credevo di dover sentire ancora parlare nel 2025 di Junk DNA o presunti ex-organi spazzatura che sono inutilmente nel corpo “perché l’evoluzione così”. Sti tizio si è messo a prendere in giro chi credeva che il cervello utilizzasse solo il 10% del suo potenziale, per poi cadere in altre similie ca**ate.. Quando non sa come spiegare qualcosa, si appella al fatto che “l’evoluzione ha agito così” come se fosse un entità metafisica che debba orientare l’umano al suo migliore sviluppo possibile. Cambiate tutti queste arrampicate sugli specchi con “Dio” e vi accorgerete che indiscepoli del suo credo hanno semplicemente creato un nuovo concetto astratto senza prove dandosi pure autorità.

Non ho potuto fare a meno ad un certo punto di prendere il libro e buttarlo in un cestino, nonostante l’argomento sembrasse interessante, siccome è quello il suo ambiente ideale.
Profile Image for eiei.
38 reviews1 follower
April 1, 2025
the author knows a lot about the relationship with screens and our bodies including brain. this is a good book that I wanna reread. it can be a bit difficult to read for some people because the author talks about science in a bit difficult way.
2 reviews
February 22, 2026
I just finished a very eye-opening book that made me realize how addicted I still am to my phone (even without social media!) It’s actually pretty scary how much our attention spans have shrunk. It makes me miss when the internet was something you sat down at a computer to use, rather than something that lived in your pocket. I'm definitely striving to make some big lifestyle changes after this one.
Displaying 1 - 11 of 11 reviews

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