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A letter, signed by 124 scholars and posted online last week, has caused an uproar in the consciousness-research community. It argues that a prominent theory describing what makes someone or something conscious — called the integrated information theory (IIT) — should be labelled as pseudoscience. Since its publication on 15 September in the preprint repository PsyArXiv1, the letter has resulted in some researchers arguing over the label and others worrying that it will increase polarization in a field that has grappled with issues of credibility in the past.

Decades-long bet on consciousness ends — and it’s philosopher 1, neuroscientist 0

“I think it’s inflammatory to describe IIT as pseudoscience,” says neuroscientist Anil Seth, director of the Centre for Consciousness Science at the University of Sussex near Brighton, UK, adding that he disagrees with the label. “IIT is a theory, of course, and therefore may be empirically wrong,” says Christof Koch, a meritorious investigator at the Allen Institute for Brain Science in Seattle, Washington, and a proponent of the theory. But he says that it makes its assumptions — for example, that consciousness has a physical basis and can be mathematically measured — very clear.


Researchers publicly call out theory that they say is not well supported by science, but that gets undue attention.

University of Basel.

People differ significantly in their memory performance. Researchers at the University of Basel have now discovered that certain brain signals are related to these differences.

While it is well known that certain brain regions play a crucial role in memory processes, so far it has not been clear whether these regions exhibit different activities when it comes to storing information in people with better or worse memory performance.

Having investigated this matter, a research team led by Professor Dominique de Quervain and Professor Andreas Papassotiropoulos has now published its results in the journal Nature Communications.

New research hints at a few ways fatty foods affect cells in the brain, a finding that could help explain the link between a high-fat diet and impaired memory – especially as we age.

The Ohio State University study in cell cultures found the omega-3 fatty acid DHA may help protect the brain from an unhealthy diet’s effects by curbing fat-induced inflammation at the cellular source.

Separate experiments using brain tissue from aging mice showed a high-fat diet may lead specific brain cells to overdo cell-signaling management in a way that interferes with the creation of new memories.

An experimental neuroimaging study in Poland found that exposure to hate speech diminishes the brain’s response to stories about other people suffering. The effect was present irrespective of the group membership of the person suffering in the story – whether they were Polish, like the participants, or Arab. The study was published in Scientific Reports.

Hate speech is a form of communication that involves the expression of discriminatory, hostile, or prejudiced sentiments and ideas directed towards individuals or groups based on their race, ethnicity, religion, gender, sexual orientation, disability, or other characteristics.


Exposure to hate speech deteriorates neurocognitive mechanisms of the ability to understand others’ pain, was authored by Agnieszka Pluta, Joanna Mazurek, Jakub Wojciechowski, Tomasz Wolak, Wiktor Soral, and Michał Bilewicz.

Scientists have identified two types of brain cell linked to a reduced risk of dementia in older people — even those who have brain abnormalities that are hallmarks of Alzheimer’s disease1.

The finding could eventually lead to new ways to protect these cells before they die. The results were published in Cell on 28 September.

Plaques in the brain.

The most widely held theory about Alzheimer’s attributes the disease to a build-up of sticky amyloid proteins in the brain. This leads to clump-like ‘plaques’ of amyloid that slowly kill neurons and eventually destroy memory and cognitive ability. But not everyone who develops cognitive impairment late in life has amyloid clumps in their brain, and… More.


People with an abundance of specific neurons are more likely to escape cognitive decline despite having signs of Alzheimer’s in their brains.

Restoration of lost memories.

Prof Bryce Vissel, who leads the Clinical Neuroscience and Regenerative Medicine Initiative (CNRM) at St Vincent’s Centre for Applied Medical Research, and his team, have identified a molecule in the brain that controls loss of nerve cell connections.

This molecule we are calling ‘the switch’ is decreased in the Alzheimer’s brain but no one really understands why, or what role it plays. When ‘encouraged’ or ‘forced’ to be expressed normally again, in our laboratory tests of a mouse model, this molecule can actually rescue its memory.

We have been able to also restore the mouse model’s synapses. Synapses refer to the… More.


Leaving a bequest is a selfless act of generosity. Hear how Robin Ann Underhill helped St Vincent’s continue compassionate care.

The robot can drive on various surfaces such as concrete or packed soil and carry up to three times its own weight in equipment such as a camera or sensors.

Imagine a tiny robot that can move on its own, powered by light and radio waves. It can carry a camera, a sensor, or a Bluetooth device and transmit data over long distances. It can navigate through different terrains and environments and follow light sources to keep going. It sounds like science fiction, right?


Source: Mark Stone/University of Washington.

Meet MilliMobile

Areas of New York City are sinking while others are rising at varying rates due to both natural and man-made factors.

One of the key indicators of climate change is the rise in sea levels at a global scale, with recent rates being unprecedented in the last 2,500 years. In an exciting study published yesterday, 27 September, NASA-based scientists found that some areas of New York City are sinking while others are rising at varying rates due to natural and man-made factors.

Interesting Engineering had reported earlier on a similar study, which said that New York is sinking due to a natural phenomenon called subsidence, where heavy objects, like buildings, gradually settle over time or when… More.


Shuo Guo/iStock.

The UK government says AI could be “a real game-changer” for healthcare.

A leading neurosurgeon in the UK has said that brain surgery using artificial intelligence (AI) is possible within two years, making it safer and more effective.

“You could, in a few years, have an AI system that has seen more operations than any human has ever or could ever see,” Dr. Hani Marcus told BBC. Dr. Marcus is a consultant neurosurgeon at the National Hospital for Neurology and Neurosurgery and an Honorary Associate Professor at the University College (UCL) London Queen Square Institute of Neurology.

Gravitational acceleration of anti-matter is close to that of matter on Earth and scientists are now working to measure it accurately.

Experiments conducted by the Antihydrogen Laser Physics Apparatus (ALPHA) collaboration at the European Center for Nuclear Research (CERN) in Geneva, Switzerland, have shown that antihydrogen particles, too are pulled downward by gravity and do not levitate as some physicists suggest a press release said.

Antihydrogen is the simplest antimatter particle that we know exists. The opposite of hydrogen contains antimatter components such as an antiproton, a negatively charged proton, and a positron, a positively charged electron.