Browsed by
Category: Consciousness

The blind spot of science is the neglect of lived experience

The blind spot of science is the neglect of lived experience

Comments 0 Comment

Adam Frank, Marcelo Gleiser, and Evan Thompson write: The problem of time is one of the greatest puzzles of modern physics. The first bit of the conundrum is cosmological. To understand time, scientists talk about finding a ‘First Cause’ or ‘initial condition’ – a description of the Universe at the very beginning (or at ‘time equals zero’). But to determine a system’s initial condition, we need to know the total system. We need to make measurements of the positions and…

Read More Read More

A resonance theory of consciousness

A resonance theory of consciousness

Comments 0 Comment

Tam Hunt writes: Why are some things conscious and others apparently not? Is a rat conscious? A bat? A cockroach? A bacterium? An electron? These questions are all aspects of the ancient “mind-body problem,” which has resisted a generally satisfying conclusion for thousands of years. The mind-body problem enjoyed a major rebranding over the last two decades and is generally known now as the “hard problem” of consciousness (usually capitalized nowadays), after the New York University philosopher David Chalmers coined…

Read More Read More

‘Self-aware’ fish raises questions about mirror test

‘Self-aware’ fish raises questions about mirror test

Comments 0 Comment

Elizabeth Preston writes: A little blue-and-black fish swims up to a mirror. It maneuvers its body vertically to reflect its belly, along with a brown mark that researchers have placed on its throat. The fish then pivots and dives to strike its throat against the sandy bottom of its tank with a glancing blow. Then it returns to the mirror. Depending on which scientists you ask, this moment represents either a revolution or a red herring. Alex Jordan, an evolutionary…

Read More Read More

The unexamined inner lives of insects

The unexamined inner lives of insects

Comments 0 Comment

Lars Chittka and Catherine Wilson write: René Descartes’s dog, Monsieur Grat (‘Mister Scratch’), used to accompany the 17th-century French philosopher on his ruminative walks, and was the object of his fond attention. Yet, for the most part, Descartes did not think very highly of the inner life of nonhuman animals. ‘[T]he reason why animals do not speak as we do is not that they lack the organs but that they have no thoughts,’ Descartes wrote in a letter in 1646….

Read More Read More

Could consciousness all come down to the way things vibrate?

Could consciousness all come down to the way things vibrate?

Comments 0 Comment

What do synchronized vibrations add to the mind/body question? agsandrew/Shutterstock.com By Tam Hunt, University of California, Santa Barbara Why is my awareness here, while yours is over there? Why is the universe split in two for each of us, into a subject and an infinity of objects? How is each of us our own center of experience, receiving information about the rest of the world out there? Why are some things conscious and others apparently not? Is a rat conscious?…

Read More Read More

Octopuses on ecstasy reveal genetic link to evolution of social behaviors in humans

Octopuses on ecstasy reveal genetic link to evolution of social behaviors in humans

Comments 0 Comment

Johns Hopkins University School of Medicine: By studying the genome of a kind of octopus not known for its friendliness toward its peers, then testing its behavioral reaction to a popular mood-altering drug called MDMA or “ecstasy,” scientists say they have found preliminary evidence of an evolutionary link between the social behaviors of the sea creature and humans, species separated by 500 million years on the evolutionary tree. A summary of the experiments is published Sept. 20 in Current Biology,…

Read More Read More

We are more than our brains

We are more than our brains

Comments 0 Comment

Alan Jasanoff writes: Brains are undoubtedly somewhat computer-like – computers, after all, were invented to perform brain-like functions – but brains are also much more than bundles of wiry neurons and the electrical impulses they are famous for propagating. The function of each neuroelectrical signal is to release a little flood of chemicals that helps to stimulate or suppress brain cells, in much the way that chemicals activate or suppress functions such as glucose production by liver cells or immune…

Read More Read More

A theory of reality as more than the sum of its parts

A theory of reality as more than the sum of its parts

Comments 0 Comment

Natalie Wolchover writes: In his 1890 opus, The Principles of Psychology, William James invoked Romeo and Juliet to illustrate what makes conscious beings so different from the particles that make them up. “Romeo wants Juliet as the filings want the magnet; and if no obstacles intervene he moves towards her by as straight a line as they,” James wrote. “But Romeo and Juliet, if a wall be built between them, do not remain idiotically pressing their faces against its opposite…

Read More Read More

What matters

What matters

Comments 0 Comment

Owen Flanagan writes: In “The Strange Order of Things” Antonio Damasio promises to explore “one interest and one idea … why and how we emote, feel, use feelings to construct our selves; how feelings assist or undermine our best intentions; why and how our brains interact with the body to support such functions.” Damasio thinks that the cognitive revolution of the last 40 years, which has yielded cognitive science, cognitive neuroscience and artificial intelligence, has been, in fact, too cognitive,…

Read More Read More

The spiritual part of our brains — religion not required

The spiritual part of our brains — religion not required

Comments 0 Comment

Ephrat Livni writes: Scientists seek to quantify everything—even the ineffable. And so the human search for meaning recently took a physical turn as Columbia and Yale University researchers isolated the place in our brains that processes spiritual experiences. In a new study, published in Cerebral Cortex (paywall) on May 29, neuroscientists explain how they generated “personally relevant” spiritual experiences in a diverse group of subjects and scanned their brains while these experiences were happening. The results indicate that there is…

Read More Read More

Theory of predictive brain as important as evolution — an interview with Lars Muckli

Theory of predictive brain as important as evolution — an interview with Lars Muckli

Comments 0 Comment

Our brains make sense of the world by predicting what we will see and then updating these predictions as the situation demands, according to Lars Muckli, professor of neuroscience at the Centre for Cognitive Neuroimaging in Glasgow, Scotland. He says that this predictive processing framework theory is as important to brain science as evolution is to biology. Horizon magazine: You have used advanced brain imaging techniques to come up with a model of how the brain processes vision – and…

Read More Read More

Psychedelic medicine may become available sooner than you expect

Psychedelic medicine may become available sooner than you expect

Comments 0 Comment

Michael Pollan writes: Just how soon might psychedelic-assisted psychotherapy be available aboveground, to the many people who stand to benefit from it? Before the F.D.A. approves a new medicine, the drug must survive testing for safety and efficacy in a three-stage sequence of trials, each of them involving a larger sample and more rigorous methods. When researchers recently brought to the F.D.A. the results of Phase 2 clinical trials of cancer patients who were given psilocybin and MDMA, they were…

Read More Read More

Why we need to figure out a theory of consciousness

Why we need to figure out a theory of consciousness

Comments 0 Comment

All in the mind. Shutterstock By Adam Barrett, University of Sussex Understanding the biology behind consciousness (or self-awareness) is considered by some to be the final frontier of science. And over the last decade, a fledgling community of “consciousness scientists” have gathered some interesting information about the differences between conscious and unconscious brain activity. But there remains disagreement about whether or not we have a theory that actually explains what is special about the brain activity which produces our miraculous…

Read More Read More

The spirit molecule

The spirit molecule

Comments 0 Comment

Graham St John writes: Identified in 300 BCE by the Greek physician Herophilos as the brain’s only unpaired organ, the pineal gland has long been a source of mystery and speculation. Galen, another Greek physician and philosopher, discussed its role as a valve regulating the flow of ‘psychic pneuma’. This view informed René Descartes, who in the 17th century situated the soul (for him, the mind) precisely in this tiny mid-brain structure, which he imagined to be something of a…

Read More Read More

A revolution in our sense of self

A revolution in our sense of self

Comments 0 Comment

Nick Chater writes: At the climax of Anna Karenina, the heroine throws herself under a train as it moves out of a station on the edge of Moscow. But did she really want to die? Had the ennui of Russian aristocratic life and the fear of losing her lover, Vronsky, become so intolerable that death seemed the only escape? Or was her final act mere capriciousness, a theatrical gesture of despair, not seriously imagined even moments before the opportunity arose?…

Read More Read More