Neuroscience

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Excessive time spent online linked to stress and worse mood – study

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German study surveyed adults who engage in gaming, pornography and online shoppingSpending excessive time online is associated with higher stress levels, worse mood, and greater neglect of other activities, according to analysis.The new study by academics at the University of Duisburg-Essen published in the journal PLOS One, surveyed 900 German adults in 2025 who reported […]

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We must reject any notion of AI consciousness | Letters

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Artificial intelligence systems won’t become conscious for the same reason they won’t become pregnant, says Dr John PickeringAnil Seth is right to point out that to overestimate artificial intelligence is to underestimate ourselves (Once again we are told AI may be conscious – I study consciousness, and I have my doubts, 15 July). But he

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Brain implant helps paralysed man to feed himself and drink from cup

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Keith Thomas can move arms and hands, and feel sensation of touch after ‘double neural bypass’ and months of trainingA man who was paralysed from the chest down in a swimming accident six years ago has been able to feed himself and drink from a cup thanks to a brain implant that bypasses his spinal

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Once again we are told AI may be conscious – I study consciousness, and I have my doubts | Anil Seth

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Despite Anthropic’s claims, Claude is no more likely to achieve sentience than a simulation of a weather system is likely to generate a real hurricaneFor centuries, humans have been fascinated by the prospect of creating artificial beings in our own image. Of developing synthetic minds and artificial bodies that not only think but also feel,

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Toward a future that preserves benefits of neurotechnology for all

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As advanced medical technology gets closer to hitting consumer markets, the need for guardrails on protected usage should increase. What might begin as a neural implant to aid in communication could become a device used to police one’s innermost thoughts.Intrigued by the far-reaching benefits and risks of neural implants, Rachel Sava, a PhD candidate in

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Beacon Biosignals is mapping the brain during sleep

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The human brain remains one of the most fascinating and perplexing mysteries in medicine. Scientists still struggle to match neurological activity with brain function and detect problems early, slowing efforts to treat neurological disorders and other diseases.Beacon Biosignals is working to make sense of the brain by monitoring its activity while people sleep. The company,

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A petri dish of human brain cells is currently playing Doom. Should we be worried?

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Scientists in the US have uploaded a fruit fly to a computer simulation, while an Australian lab has taught neurons on a glass chip to play a 90s video game. How long before we are all living in a sci-fi movie?It sounds like the opening of a sci-fi film, but US scientists recently uploaded a

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Exercise and brain function, hedgehog hearing, and can AI change our minds? – podcast

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The Guardian’s science editor, Ian Sample, talks to Madeleine Finlay about three eye-catching science stories from the week, including a study that explores the link between exercise and brain health. Also on the agenda: the discovery that hedgehogs can hear high-frequency ultrasound and what this could mean for their conservation, and new research examining how

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Short films made from brain activity of mice aim to show how they see world

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Scientists hope results analysed after the mice watched video footage will help them understand their perceptionsScientists have reconstructed short movies from the brain activity of mice that watched videos for a project that aspires to lift the veil on how animals perceive the world.The brief movie clips are grainy and pixellated, but provide a glimpse

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‘Our consciousness is under siege’: Michael Pollan on chatbots, social media and mental freedom

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In his new book, the celebrated author explains why we need ‘consciousness hygiene’ to defend ourselves from AI and dopamine-driven algorithmsEach day when you wake up, you come back to yourself. You see the room around you, feel your body brush against your clothes and think about your plans, worries and hopes for the day.

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