Season 4 of The Expanse TV show was released Friday on Amazon Prime, so I just spent today binging on it. There was a lot of uncertainty about the show last year when SyFy canceled it, but within a short period Amazon stepped in and saved it, renewing it for a fourth season. And earlier … Continue reading Recommendation: The Expanse (season 4)
Is entanglement decoherence from the outside, and decoherence entanglement from the inside?
A recent tweet by Sean Carroll has me thinking. https://twitter.com/seanmcarroll/status/1204128666273271808 Quantum decoherence is said to occur when a particular quantum system becomes entangled with its environment, that is to say, as information about the quantum system spreads throughout the environment, that system undergoes at least an apparent wave function collapse. It stops behaving like a … Continue reading Is entanglement decoherence from the outside, and decoherence entanglement from the inside?
The magic step and the crucial fork
Those of you who've known me for a while may remember the long fascination I've had with Michael Graziano's attention schema theory of consciousness. I covered it early in this blog's history and have returned to it multiple times over the years. I still think the theory has a lot going for it, particularly as … Continue reading The magic step and the crucial fork
Ad Astra: Apocalypse Now in space
The movie Ad Astra is a strange mix. In many ways, it's a visually stunning film with excellent production values. And it has first class name stars, most notably Brad Pitt and Tommy Lee Jones. But the plot has serious issues. On balance, I enjoyed it, but this is a case where your mileage may … Continue reading Ad Astra: Apocalypse Now in space
The information generation theory of consciousness
James of Seattle called my attention to an interesting paper in the Neuroscience of Consciousness journal: Information generation as a functional basis of consciousness: Drawing upon empirical research into consciousness, we propose a hypothesis that a function of consciousness is to internally generate counterfactual representations detached from the current sensory events. Interactions with generated representations … Continue reading The information generation theory of consciousness
Recommendation: Silver (Inverted Frontier Book 2)
I just finished reading Linda Nagata's new book, Silver, which is the second book of her new Inverted Frontier series. It's a sequel to the first book, Edges, which I recommended earlier this year, and Memory, which I described and recommended a few weeks ago. Characters from both books feature heavily in the new story. … Continue reading Recommendation: Silver (Inverted Frontier Book 2)
Conscious visual perception happens in the frontal lobes
(warning: neuroscience weeds) Okay, switching back to the other major debate in neuroscience: whether conscious perception happens in the back or front of the brain. A new study presents evidence that seems to bolster the frontal view: Neural Correlates of the Conscious Perception of Visual Location Lie Outside Visual Cortex (warning: paywall): When perception differs … Continue reading Conscious visual perception happens in the frontal lobes
The layers of emotional feelings
One of the ongoing debates in neuroscience is on the nature of emotions, where they originate, where they are felt, and how innate versus learned they are. One view, championed by the late Jaak Panksepp and his followers, see emotions as innate, primal, and subcortical. They allow that the more complex social emotions, such as … Continue reading The layers of emotional feelings
The barrier of meaning
In the post on the Chinese room, while concluding that Searle's overall thesis isn't demonstrated, I noted that if he had restricted himself to a more limited assertion, he might have had a point, that the Turing test doesn't guarantee a system actually understands its subject matter. Although the probability of humans being fooled plummets … Continue reading The barrier of meaning
Debate: Do split-brain patients have two minds?
I went to the NYU Consciousness site this morning hoping to see if the recent debate on the relationship of prefrontal activity to consciousness had been posted yet. It hasn't, and based on what I can see, it might be a while. But I did find this interesting debate from last year on whether split … Continue reading Debate: Do split-brain patients have two minds?