Split brains and functioning consciousness

I've written before about split-brain patients, those who, due to severe epilepsy, had the connections between the two hemispheres of their brain severed, yet were subsequently able to lead normal lives without themselves even noticing any cognitive change, which has profound implications for how consciousness works. It turns out that there are people who are … Continue reading Split brains and functioning consciousness

David Chalmers: How do you explain consciousness?

In this TED talk, David Chalmers gives a summary of the problem whose name he coined, the hard problem of consciousness. http://www.youtube.com/watch?v=uhRhtFFhNzQ via David Chalmers: How do you explain consciousness? - YouTube. It seems like people who've contemplated consciousness fall into two groups, those who are bothered by the hard problem, and those who are not. … Continue reading David Chalmers: How do you explain consciousness?

How our brains store recent memories, cell by single cell — ScienceDaily

An interesting study providing more evidence for the computational theory of mind. Confirming what neurocomputational theorists have long suspected, researchers report that the human brain locks down episodic memories in the hippocampus, committing each recollection to a distinct, distributed fraction of individual cells. via How our brains store recent memories, cell by single cell -- … Continue reading How our brains store recent memories, cell by single cell — ScienceDaily

A limited color vision philosophical zombie?

This article at IO9 reminded me of the recent discussion some of us had on philosophical zombies. Ever heard of the philosophical zombie? It's a philosophical concept that rarely translates into physiology - until now. A case of false color-blindness makes us wonder: What's the difference between seeing something and knowing that you're seeing something? … Continue reading A limited color vision philosophical zombie?

What does the Turing Test really mean?

The Turing Test is in the news this week, first with a wave of hype about a historical accomplishment, then with a secondary wave of skeptical scrutiny. The Turing Test was originally contemplated by Alan Turing in a 1950 paper.  Turing envisaged it as an alternative to trying to determine if a machine could think. … Continue reading What does the Turing Test really mean?

‘Free choice’ in primates altered through brain stimulation

When electrical pulses are applied to the ventral tegmental area of their brain, macaques presented with two images change their preference from one image to the other. The study is the first to confirm a causal link between activity in the ventral tegmental area and choice behavior in primates. via 'Free choice' in primates altered … Continue reading ‘Free choice’ in primates altered through brain stimulation

My philosophy, so far — part II | Scientia Salon

Massimo Pigliucci is doing an interesting series of posts on his philosophical positions. In the first part [19] of this ambitious (and inevitably, insufficient) essay I sought to write down and briefly defend a number of fundamental positions that characterize my “philosophy,” i.e., my take on important questions concerning philosophy, science and the nature of … Continue reading My philosophy, so far — part II | Scientia Salon