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Showing posts with label centre. Show all posts
Showing posts with label centre. Show all posts

Wednesday, November 21, 2012

Brain’s nothingness centre found

Collectively Unconscious has a satirical post entitled “Brain region found that does absolutely nothing”.

Neuroscientists at the University of Ingberg have found a brain region that does absolutely nothing. Their research, presented at the annual Society for Neuroscience meeting, showed that a small region of the cortex located near the posterior section of the cingulate gyrus responded to ‘not one of our 46 experimental manipulations’…

“Over the months that followed we tried everything we knew, with over 20 different participants. IQ tests, memory tasks, flashing lights, talking, listening, imagining juggling, but there was no response. Nothing. We got more desperate, so we tried pictures of faces, TMS, pictures of cats, pictures of sex, pictures of violence and even sexy violence, but nothing happened! Not even a decrease. No connectivity to anywhere else, not even a voodoo correlation. 46 voxels of wasted space. I know dead salmons that are more responsive.”

Clearly the problem here is a lack of imagination.

A recent (genuine) study simply ran the same experimental data from an fMRI scanning session through 6,912 different possible ways of conducting the analysis.

Suddenly, activity popped up all over the brain.

As Einstein said “Imagination is more important than knowledge, because even though science strives to be an objective body of knowledge driven by a systematised method for accurately discovering causal relationships, in reality, it’s a bun fight”.

Pretty sure that was Einstein. Hang on, I’ll just check my stats. Yep, yes it was.

Link to satirical post on Collectively Unconscious.


View the original article here

Wednesday, May 9, 2012

Is the brain the centre of your universe?

The Observer has a fantastic debate between neuroscientists David Eagleman and Raymond Tallis about how much brain science tells us about free will and the unconscious.

It’s a wonderful pairing as Eagleman is a broad-thinking wonderboy of neuroscience while Tallis is a veteran street-fighter of brain debates.

The main point of contention revlves around whether we can understand the brain as the source of human nature or whether we have to look beyond the individual to make sense of our experience and behaviour.

Eagleman: It is clear at this point that we are irrevocably tied to the 3lb of strange computational material found within our skulls. The brain is utterly alien to us, and yet our personalities, hopes, fears and aspirations all depend on the integrity of this biological tissue. How do we know this? Because when the brain changes, we change…

Tallis: Yes, of course, everything about us, from the simplest sensation to the most elaborately constructed sense of self, requires a brain in some kind of working order. Remove your brain and bang goes your IQ. It does not follow that our brains are pretty well the whole story of us, nor that the best way to understand ourselves is to stare at “the neural substrate of which we are composed”.

This is because we are not stand-alone brains. We are part of community of minds, a human world, that is remote in many respects from what can be observed in brains. Even if that community ultimately originated from brains, this was the work of trillions of brains over hundreds of thousands of years: individual, present-day brains are merely the entrance ticket to the drama of social life, not the drama itself.

As an accompaniment to the piece, I also wrote a ‘brief guide to neuroscience’ that you can also read online.

Link to debate ‘The brain… it makes you think. Doesn’t it?’
Link to ‘A brief guide to neuroscience’.


View the original article here