Every ten years the scientific study of consciousness passes a milestone. A decade ago the milestone was the publication of Chrisof Koch’s book “Quest for Consciousness” (2004). “Quest” established the groundwork for a scientific approach to the study of consciousness and described progress using techniques of neuroscience and experimental psychology1. Stenislas Dehaene’s book “Consciousness and the Brain: Deciphering how the Brain Codes our Thoughts” presents a mass of new data and along with new theory. I believe it is a major consolidation; a milestone marking the path towards the next decade.
This is the intro to my blog post/review. The entire post can be read at the BrainFacts Blog site.
The function of learning is clear: modifying behavior through experience. Memory, the storage of information that supports learning, is clearly necessary and valuable. Current psychology and neuroscience tell us that there are two memory systems enabled by separate neural systems. Procedural memory relies on reward circuitry and trial-and-error processes to mold efficient behaviors. Episodic memory stores specifc events in the life of the individual — but for what purpose? Continue reading
Integrated Information Theory (IIT) is Giulio Tononi’s bold concept of the the neural underpinnings of consciousness. Roughly, IIT proposes that the subjective component of consciousness emerges when an information-processing entity has lots of informational states, is interconnected (integrated), and has certain feedback properties. “Phi” is a computed property that can measure the instantaneous amount of integrated information an information in a system. According to IIT, consciousness emerges from any system that has a proper architecture, principally, having large numbers of independent, “integrated” states. Thus, the larger the Phi, the greater the conscious experience. The human brain has large information capacity and an integrated architecture; thus, during the waking state a human brain has lots of consciousness. Continue reading
Personal identity — the conscious awareness of self — originates in the cleavage of a nebulous universe into “self” and “world”. As the brain develops and diverse capabilities emerge, many of which are entwined with “self”, personal identity becomes more complex. Its functions and features transform. John Locke made an initial contribution, the notion that personal identity depends on a continuous autobiographical memory. The list below starts with autobiographical memory, and adds five additional components. Continue reading
My post on the brainfacts blog, “Let’s stop using the term “Hard Wired“. Intended to get people to think more carefully and avoid sloppy metaphors.
I’ve been working on an idea for several months: that exerting effort, force, has an subjective feeling, a quale, which lays behind a person’s intuitive idea of physics and causality.
Love is both physical and psychological. It is both biological and a conscious emotion. The study of love, as with much of Neuroscience, crosses boundaries.
Here’s My blog post on BrainFacts for valentine’s day. It’s largely an introduction to Lucy Brown and Helen Fischer’s website, AnatomyOfLove.com plus Q-and-A with Lucy. (Hit “continue reading” for Billie Hiliday’s rendition). Continue reading