Graziano’s non-mystical approach to consciousness

Someone called my attention to a new paper by Michael Graziano: A conceptual framework for consciousness. I've highlighted Graziano's approach and theory many times over the years. I think his Attention Schema Theory provides important insights into how top down attention works. But it's his overall approach that I find the most value in. He's … Continue reading Graziano’s non-mystical approach to consciousness

How much can we change the causality of the brain and keep consciousness?

James of Seattle clued me in to a thought experiment described by Dr. Anna Schapiro in a Twitter thread. https://twitter.com/AnnaSchapiro/status/1512866137809195011 It's very similar to one discussed in a new preprint paper: Do action potentials cause consciousness? Like all good thought experiments, it exercises and challenges our intuitions. In this case, it forces us to contemplate … Continue reading How much can we change the causality of the brain and keep consciousness?

Anil Seth’s theory of consciousness

I recently completed Anil Seth's new book, Being You: A New Science of Consciousness. Seth starts out discussing David Chalmers' hard problem of consciousness, as well as views like physicalism, idealism, panpsychism, and functionalism. Seth is a physicalist, but is suspicious of functionalism. Seth makes a distinction between the hard problem, which he characterizes as … Continue reading Anil Seth’s theory of consciousness

Sources of information on neuroscience

It's been a while since I listed good sources to learn about neuroscience and the brain. I think anyone interested in consciousness and the mind should get a grounding in the basics. It's a bit of work, but the introductory accounts aren't anything unmanageable for someone who can parse philosophically dense material. And it enables … Continue reading Sources of information on neuroscience

Perceptions are dispositions all the way down

(Warning: neuroscience weeds) Some years ago, I reviewed Antonio Damasio's theory of consciousness, based on his book, Self Comes to Mind. (He has a newer book, The Strange Order of Things, which I haven't read yet, so this may not represent his most current views.) In that book, Damasio makes a distinction between two types … Continue reading Perceptions are dispositions all the way down

Stimulating the prefrontal cortex

(Warning: neuroscience weeds) This is an interesting study getting attention on social media: Does the Prefrontal Cortex Play an Essential Role in Consciousness? Insights from Intracranial Electrical Stimulation of the Human Brain. Ned Block is one of the authors. (Warning: paywalled, but you might have luck here.) The study looks at data from epileptic patients … Continue reading Stimulating the prefrontal cortex

The global playground

(Warning: neuroscience weeds) Stanislas Dehaene recently called attention to a paper in Nature studying the brain dynamics of something becoming conscious. The study supports the global neuronal workspace theory that consciousness involves "bifurcation" dynamics, an "ignition", a phase transition between preconscious and conscious processing. Prior to the transition, the processing is feedforward and fleeting. After … Continue reading The global playground

Mark Solms’ theory of consciousness

Cover for The Hidden Spring

I recently finished Mark Solms' new book, The Hidden Spring: A Journey to the Source of Consciousness. There were a few surprises in the book, and it had what I thought were strong and weak points. My first surprise was Solms' embrace of the theories of Sigmund Freud, including psychoanalysis. Freud's reputation has suffered a … Continue reading Mark Solms’ theory of consciousness

The location of the global workspace

(Warning: neuroscience weeds) I've discussed global workspace theories (GWT) before, the idea that consciousness is content making it into a global workspace available to a vast array of specialty processes. More specifically, through a neural competitive process, the content excites key hub areas, which then broadcast it to the rest of the specialty systems throughout … Continue reading The location of the global workspace