Neuroweapons

ZackLynch.jpgMore neurologisms abound, as Zack Lynch posts about a recent conference on ‘neuroweapons’.

In a previous post, he mentioned concerns about neurowarfare – the use of weapons that target the human central nervous system.

Presumably this means nerve agents, neurotoxins and the like, rather than simply being bashed on the head with a rock (perhaps, the earliest example of a neuroweapon?).

However, the more recent discussions seem to focus on the use of technology and drugs to enhance the cognitive function of soldiers and other military personnel.

Link to Brain Waves post on neuroweapons.

Neurologism spotting

I just read the recent New Sci article on mind reading with fMRI that Vaughan flagged up recently, and couldn’t help noticing two more neurologisms coined by the writer of the article, Douglas Fox.

Neuronaut: Fox describes getting ready to enter the brain scanner – “As they prepared the experiment this morning, I felt like an astronaut – a neuronaut you might say – getting ready for launch”. So a neuronaut is a virgin neurosi experimental subject.

Neuro-legible: The researchers had managed to read Fox’s brain with 90 per cent accuracy. “As I hang up, I’m strangely glad to know my brain is neuro-legible…”. So neuro-legibility describes how easily your brain can be read by brain scanning technologies.

Link to Vaughan on the New Sci article.
Link 1, 2, and 3 for Mind Hacks posts on the search for neurologisms.

2006-05-12 Spike activity

Quick links from the past week in mind and brain news:

spike.jpg

The New York Times examines the factors that contribute to exceptional talents and ‘expert performance‘.

Cognitive Daily analyses research that shows that hypnotism can abolish the Stroop effect.

New Scientist reports that women can pick out which men are child-friendly by looking at their faces. See also pdf of scientific paper. (via BB).

People with autism show different brain activity during resting or ‘day dreaming’ times than others, reports brain-imaging study.

Nobel-prizewinning neuroscientist Eric Kandel is profiled by The Loom’s Carl Zimmer. With audio interview and sample chapter of Kandel’s memoir.

Coventry University starts a two-year postgraduate degree course in parapsychology (via anomalist)

BrainEthics looks at the contribution of genetics to cognition, inspired by a special issue on the topic from the journal Behavior Genetics.

YouTube video of newly developed android woman!

Psychoanalysis at the Institute of Contemporary Arts

polanski_repulsion_image.jpgLondon’s swanky Institute of Contemporary Arts has an ongoing series of “psychoanalytic exploration of films representing various forms of psychopathology and other emotional conditions”.

It’s been happening for a while and seems to be an ongoing project, but had totally passed me by.

Films are shown, and then discussed by members of the Institute of Psychoanalysis to try and better understand the social meaning of the movie and motivations of the characters.

The next film is Roman Polanski’s Repulsion, to be shown Sunday 14th May.

New infant language lab at Liverpool Uni

liverpool infant language lab.JPG

Liverpool University’s new Child Language Study Centre hopes to become the first UK-based lab to replicate and expand upon American findings published in the 90’s that led to the ‘syntactic bootstrapping’ hypothesis – the idea that children as young as two use their innate understanding of syntax to help them learn new words.

With a team of six researchers led by Professor Julian Pine, the Centre is one of the largest of its kind in the UK. And after launching last Summer, the centre is now ready to start experimenting.

“In essence the syntactic bootstrapping hypothesis assumes the child has an innate predisposition to understand the syntactic properties of language. We want to know if this is true or not”, Dr. Javier Aguado-Orea, a researcher in the lab, told Mind Hacks.

In one study, the researchers will present young children with sentences containing an unfamiliar verb (e.g. ‘the boy strokes the girl’). Either side of the speaker playing the pre-recorded sentences will be two video screens showing a boy and girl, with one of them matching the action described in the spoken sentence. In this example, the structure of the sentence reveals the boy as the active player and the researchers want to know if the children can use that information to guide them to look at the correct video screen, thus facilitating their learning of the meaning of the verb ‘to stroke’.

“It can be tricky, for six months we’ve been piloting our stimuli – for example, you have to make sure that the child is looking at the correct screen based on the structure of the sentence, not because one of the characters or objects is more attractive to them”, Aguado-Orea explained.

“But if we are able to replicate this finding it would be quite powerful because it would be an indication of a very early stage in the development of language, and it would illustrate learning mechanisms that there is no other way, in our knowledge, to detect” he said.

The Centre have tested 11 children on this particular experiment so far, but they need at least 12 more. Parents willing to volunteer their child should email childlanguage[@]liv.ac.uk for further information.


Link to lab.

‘Send in the Idiots’ author interviewed on NPR

KamranNazeer.jpgKamran Nazeer, author of a new book on being a child in a school for kids with autism, called Send in the Idiots, is interviewed on NPR radio.

Nazeer was mentioned earlier this week on Mind Hacks, and there’s some commentary and ongoing discussion about the interview on a post over at Autism Diva’s blog.

Link to NPR interview with Kamran Nazeer.

Trephination set on EBay

trephination_set.jpgSomeone has an EBay auction about to close in which they’re selling a genuine set of surgical tools for trephination – the surgical practice of drilling holes through the skull.

The practice, also known as trepanation or trepanning, has been carried out since ancient times and has been thought to cure all sorts of conditions we would now know as mental or neurological disorders – such as epilepsy or psychosis.

It is thought that it was carried out to release ‘evil spirits’ or similar from the head, by creating a way for them to escape.

The practice hasn’t died out, however. It is occasionally practised by peoples outside the reach of modern medicine, and some people in industrialised countries do it as a form of body modification for its supposed consciousness modifying properties.

In fact, there’s a whole trepanning subculture on the internet.

For example, the Body Modification EZine has an article about someone who undertook a trepanning procedure (warning, if you’re a bit squeamish, the article and images are a bit icky):

I awoke the next morning still very much wanting to move forward with the operation. I thought to myself, “The key to more consciousness is sitting in the next room over. How can I know this and not unlock the door?” I explained my sincere desire to my girlfriend, and though she was still apprehensive, she agreed to try to be there for me if it was really what I wanted to do.

We had coated every wall of a room in plastic sheeting, had a placement tray ready (a sterilized tray to set the instruments on), had the drill sterilized and ready to go, autoclaved bits set out, etc and proceeded to trepan me. One person was to do the drilling and another was to help by passing instruments, turning the drill off and on, by holding a light in the right place at the right time, and by irrigating the wound every so often.

UPDATE: Grabbed from the comments page (thanks Anders!)…

Personally I need trepanation like I need a hole in my head (sorry,couldn’t resist), but there is actually a trepanation advocacy group called ITAG their site is at www.trepan.com (Warning: site uses excessive amounts of flash, a possible side effect of trepanation?) which has documents and videos on the procedure and it’s supposed benefits that are both enlightening and a little scary.

Link to auction on EBay (via BoingBoing).
Link to Wikipedia article on trepanation.
Link to BMEZine article on trepanation procedure.

NewSci on human optimisation

newsci_20060513.jpgNew Scientist has had a run of neuroscience-related articles recently, and this week’s cover story is no exception as it looks at developments in the science of human enhancement.

For those seeking that advantage, more opportunities are just around the corner – a lot more. Around 40 cognition-enhancing drugs are in development right now, designed to improve wakefulness, attention, memory, decision making and planning (see “Smarter minds”). Gerontologists are starting to believe we could directly intervene in the process of senescence to significantly increase the average human lifespan.

There have also been rapid advances in brain-machine interfaces, such as retinal implants, communication devices for paralysed and locked-in patients, and even memory prostheses, hinting at the possibility of neural implants that enhance normal functioning. Progress in genetic engineering and gene therapy suggests that we will soon be able to rewrite our own genetic code, and that of future generations, removing broken genes, correcting errors and even inserting new ones…

Unfortunately, not available online unless you’re a subscribed, unfortunately, but your library shop or library should have a copy kicking around.

Link to table of contents.

Experimenting with theatre

match_flame.jpgThe Soho Theatre in London’s West End hosts an event on Monday 15 May where a production will be staged after several days of intense collaboration between scientists and writers, exploring the theme that both science and theatre are essentially driven by experiment.

The event is being run by Tassos Stevens, who did his PhD in developmental psychology before moving on to theatre production.

He’s since been keen to integrate the two fields, and hopes to illustrate and explore a scientific experiement as part of the production.

There’s also a blog with an ongoing discussion about the project for those not able to see the production in person.

Link to details of event at London’s Soho Theatre.
Link to blog with ongoing discussion.

Are you comfortably numb?

This friday the Royal Insitution is asking Are you comfortably numb?, with an event about what we can learn about consciousness from unconsciousness:

Until very recently it was thought that consciousness couldn’t be studied scientifically, but now the drive to find out how your brain can make you self-aware is one of the most significant areas of new research. What’s more, scientists are now making headway with some of the big questions. What is consciousness? How can we hope to study it empirically when it’s all about each person’s subjective experience?

Some clues to these answers may come from studying anaesthesia. When you go under anaesthesia you’re in a strange position with regard to consciousness. It’s a much deeper oblivion than sleep, but we all know stories of people becoming aware during surgery. It even appears that patients under perfectly adequate anaesthesia can still hear, and in one experiment, patients were able to learn while under!

The event features Prof Mike Alkire & Prof Peter Sebel and is Chaired by Baroness Susan Greenfield. Date & Time: Friday 12 May 2006, 7.00pm–8.30pm, and tickets are £8/£5 for members and concessions.

If you’d like an even more in-depth look at the topic, you can join the preceding day-long Consciousness and Anaesthesia meeting at the Royal Society of Medicine.

Solaris and the philosophy of consciousness

Stanislaw_Lem.jpgStanislaw Lem was a reknowned science fiction writer. It is less known that his books are repleat with carefully thought out philosophy about the nature of consciousness and knowledge acquisition.

ABC Radio National’s The Philosopher’s Zone recently had a special examining Lem’s view on consciousness as demonstrated in his richly descriptive sci-fi works.

The novel Solaris has as a central plot, something not unfamiliar to readers of science fiction, and is replicated in many novels, and that is the notion of first contact with a completely alien intelligence. We have a central protagonist, Chris Kelvin, who goes to a space station that is orbiting a planet, Solaris, and has been orbiting this planet for hundreds of years. So by the time the novel begins the planet has been well known and it’s been the subject of scientific inquiry for over 100 years, and hundreds of volumes have been written about this planet, because it has a peculiar being inhabiting it, which is the ocean that covers most of the planet seems to be sentient, seems to be a rational being, but something completely different from anything else that human beings have encountered.

As the novel progresses, we realise that the inhabitants of the space station have all gone crazy or have died because of their continued proximity with this alien being. And our hero of course, Kelvin, and listeners who have seen either the Tarkowski film or the more recent film, will know that one of the peculiarities of this plasmatic ocean, as Lem calls it, is that it produces replica human beings, that it seems to have sourced from the deepest submerged memories of the scientists on board the space station.

mp3 or realaudio of programme.
Link to transcript.

Lightning is always seen, thunder always heard

optical.jpg

An old suggestion that crossing the visual and auditory pathways to the brain would lead to light being experienced as sound, and vice versa, has been tested and found to be false.

Nicholas Swindale, in Current Biology, 2000

Okay, so this isn’t new news, but it was new to me and too good a story not to share.

If, from birth, the information from the eyes is routed to the auditory cortex then the brain learns to see like normal – at least in ferrets, with whom they’ve done these experiments. The cortex has the potential to cope with whatever information it is provided with during development. So, it seems, the regional specialisations of the brain aren’t genetically predetermined. But a question remains: if your auditory cortex is processing visual stimuli, how are they actually experienced? The brain might be processing the information well enough to guide behaviour, but how do the stimuli actually feel? Are they experienced as visions or as sounds? Or, as Swindale puts it:

are the types of sensory processing that ultimately give rise to qualia innately determined properties of different cortical areas, or are they the secondary outcome of a general purpose learning algorithm applied to sensory inputs which have a different information content?

And, crucially, is there any way of working this out in a ferret? Is there a way of telling what a ferret’s experience is really like? Well, there is, and it involves rewiring just half of the brain – so that visual inputs to one side go to the ‘auditory cortex’ and visual inputs from the other go to the visual cortex as normal. Now if you train the animal to go left to visual inputs on the intact side and right to sounds, which way will it go to a visual input presented to the rewired side? If it experiences the visual input as most like a sound it will go right, but if it experiences it as most like a light it will go left. The animals go left – so visual stimuli are experienced as visual whereever in the brain they are initially processed.

Swindale’s review
The original research von Melchner L, Pallas SL, Sur M: Visual behaviour mediated by retinal projections directed to the auditory pathway. Nature 2000, 404:871-876.

Autism podcast

autism_podcast.jpgWe seem to be on a run of autism news lately, and here’s one more to add to the list. I’ve just discovered AutismPodcast.org that has regular podcasts about autism science, parenting and people.

The most recent programme has an interview with Autism Diva who has been diagnosed with Asperger syndrome herself, has both a child with autism and a neurotypical child to keep her busy. She talks about her own experience of Asperger’s and her view on the current state of understanding the condition.

Autism Diva also runs a popular autism blog which we featured previously on Mind Hacks, that keeps tabs on the science and politics of the autism world.

The host of Autism Podcast is a father of a boy with autism, and obviously has a wide interest, as the archive of past programmes demonstrates.

Link to Autism Podcast.

Autism in the London Review of Books

ian_hacking.jpgLondon Review of Books has an in-depth review of two recently released books on autism: Laura Schreibman’s The Science and Fiction of Autism and Kamran Nazeer’s Send in the Idiots.

The author of the review, philosopher Ian Hacking (picture on the right), starts with some controversial views on autism.

Autism is devastating ‚Äì to the family. Children can be born with all manner of problems. Some begin life in great pain that can never be relieved, but at least there is a child there. An autistic child ‚Äì and here I am talking about what’s known as core autism ‚Äì is somehow not there. ‘Nobody Nowhere’, as the title of Donna Williams’s autobiography (1992) has it. Very often physically healthy (though there is a high incidence of other problems) he ‚Äì and it is usually he ‚Äì just does not respond. It is not merely that he does not learn to speak until years after his peers, and then inadequately. He has no affect; he never snuggles. He is obsessed with things and order, but does not play with toys in any recognisable way, and certainly does not play with other children. He mercilessly repeats a few things you say. With no comprehension. He has violent tantrums, not the usual sort of thing, but screaming, hitting, biting, smashing. This alternates with a placid gentleness, maybe even a smile ‚Äì but not really for you. Serious Down‚Äôs syndrome is pretty bad too, but despite all the difficulties, physical and mental, there is a loving little child there.

He admits that his views will make many parents angry. Indeed, they represent one of the most emotive debates in the field and centre around the question of whether autism is a disabling disease, or simply another way of experiencing the world.

Those who would argue against Hacking (often autistic people themselves) suggest that the self-absorption and social disinterest often shown by those with autism is considered a disease because of parent’s own dissatisfaction with their child’s unusual behaviour, rather than out of any genuine concern for the person themselves.

In it’s most polarised form, autistic people are being labelled as diseased while parents are accused of being selfish. It is not difficult to see why tempers flare.

The debate is complicated by the wide spectrum of behaviours labelled as autistic. A person diagnosed with autism may be someone who can’t look after themselves and needs constant assistance, or a slightly awkward yet top-of-their-field professional.

Indeed, Kamran Nazeer himself was diagnosed with autism as a child, and recounts his experiences and follows up his classmates in his book Send in the Idiots. One law degree and PhD later, he’s a policy adviser for the government.

The author of the other book, Professor Laura Schreibman, is a psychologist who works with people throughout the autism spectrum, from the most impaired to the most able.

Hacking obviously has a good knowledge of the science of autism, and does the reader the courtesy of making his own position clear early on, was well as making some insightful points about the books in question.

Link to review in London Review of Books (thanks tallapul!).

Art and the New Biology of the Mind video online

statue_smile.jpgBrainEthics has just posted up a couple of news items of interest to those keeping track of developments in neuroaesthetics – the neuroscience of art and creativity.

The first is that video from the recent conference on Art and the New Biology of the Mind is now online. Speakers include David Freedberg, Eric R. Kandel, Antonio Damasio, Ray Dolan, Vittorio Gallese, Joseph LeDoux, Margaret Livingstone, V.S. Ramachandran and Semir Zeki.

The speakers variously discuss ’emotion and consciousness’ and ‘vision and aesthetics’.

Secondly, Martin Skov writes about the launch of the new Institute for the Study of the Brain and Creativity at the University of Southern California. It will be led by Professors Antonio and Hanna Damasio.

Link to video archive from Art and the New Biology of the Mind conference.
Link to info on Institute for the Study of the Brain and Creativity.
Link to Washington Post on neuroaesthetics.

Time Magazine on the autistic mind

Time_magazine_autism.jpgTime Magazine has a cover story entitled “Inside the Autistic Mind” from its upcoming May 15th edition. It is available online (after viewing an ad) and discusses the recent developments in the psychology and neuroscience of autism.

“In the meantime, 300,000 school-age American children and many adults are attempting to get through daily life with autism. The world has tended to hear from those who are highest functioning, like Temple Grandin, the author and Colorado State University professor of livestock behavior known for designing humane slaughterhouses. But the voices of those more severely affected are beginning to be heard as well. Such was the case with Sue Rubin, 27, a college student from Whittier, Calif., who has no functional speech and matches most people’s stereotyped image of a retarded person; yet she was able to write the narration for the Oscar-nominated documentary about her life, Autism Is a World.”

The article contains material that some people will baulk at (e.g. the suggestion that cases of autism are vastly increasing) and is quite medical in its approach, although does contain some interesting accounts of ongoing research projects.

Link to Time article ‘Inside the Autistic Mind’.