noworldsystem.com

Wired
August 13, 2008

Drugs that make soldiers want to fight. Robots linked directly to their controllers’ brains. Lie-detecting scans administered to terrorist suspects as they cross U.S. borders.

These are just a few of the military uses imagined for cognitive science — and if it’s not yet certain whether the technologies will work, the military is certainly taking them very seriously.

“It’s way too early to know which — if any — of these technologies is going to be practical,” said Jonathan Moreno, a Center for American Progress bioethicist and author of Mind Wars: Brain Research and National Defense. “But it’s important for us to get ahead of the curve. Soldiers are always on the cutting edge of new technologies.”

Moreno is part of a National Research Council committee convened by the Department of Defense to evaluate the military potential of brain science. Their report, “Emerging Cognitive Neuroscience and Related Technologies,” was released today. It charts a range of cognitive technologies that are potentially powerful — and, perhaps, powerfully troubling.

Here are the report’s main areas of focus:

• Mind reading. The development of psychological models and neurological imaging has made it possible to see what people are thinking and whether they’re lying. The science is, however, still in its infancy: Challenges remain in accounting for variations between individual brains, and the tendency of our brains to change over time.

  One important application is lie detection — though one hopes that the lesson of traditional lie detectors, predicated on the now-disproven idea that the physiological basis of lying can be separated from processes such as anxiety, has been learned.

  Mind readers could be used to interrogate captured enemies, as well as “terrorist suspects” passing through customs. But does this mean, for example, that travelers placed on the bloated, mistake-laden watchlist would have their minds scanned, just as their computers will be?

  The report notes that “In situations where it is important to win the hearts and minds of the local populace, it would be useful to know if they understand the information being given them.”

• Cognitive enhancement. Arguably the most developed area of cognitive neuroscience, with drugs already allowing soldiers to stay awake and alert for days at a time, and brain-altering drugs in widespread use among civilians diagnosed with mental and behavioral problems.

  Improved drug delivery systems and improved neurological understanding could make today’s drugs seem rudimentary, giving soldiers a superhuman strength and awareness — but if a drug can be designed to increase an ability, a drug can also be designed to destroy it.

  “It’s also important to develop antidotes and protective agents against various classes of drugs,” says the report. This echoes the motivation of much federal biodefense research, in which designing defenses against potential bioterror agents requires those agents to be made — and that raises the possibility of our own weapons being turned against us, as with the post-9/11 anthrax attacks, which used a military developed strain.

• Mind control. Largely pharmaceutical, for the moment, and a natural outgrowth of cognitive enhancement approaches and mind-reading insight: If we can alter the brain, why not control it?
  
  One potential use involves making soldiers want to fight. Conversely, “How can we disrupt the enemy’s motivation to fight? […] How can we make people trust us more? What if we could help the brain to remove fear or pain? Is there a way to make the enemy obey our commands?”
• Brain-Machine Interfaces. The report focuses on direct brain-to-machine systems (rather than, for example, systems that are controlled by visual movements, which are already in limited use by paraplegics.) Among these are robotic prostheses that replace or extend body parts; cognitive and sensory prostheses, which make it possible to think and to perceive in entirely new ways; and robotic or software assistants, which would do the same thing, but from a distance.

  Many questions surrounding the safety of current brain-machine interfaces: The union of metal and flesh only lasts so long before things break down. But assuming those can be overcome, questions of plasticity arise: What happens when a soldier leaves the service? How might their brains be reshaped by their experience?

Like Moreno said, it’s too early to say what will work. The report documents in great detail the practical obstacles to these aims — not least the failure of reductionist neuroscientific models, in which a few firing neurons can be easily mapped to a psychological state, and brains can be analyzed in one-map-fits-all fashion.

But given the rapid progress of cognitive science, it’s foolish to assume that obstacles won’t be overcome. Hugh Gusterson, a George Mason University anthropologist and critic of the military’s sponsorship of social science research, says their attempt to crack the cultural code is unlikely to work — “but my sense with neuroscience,” he said, “is a far more realistic ambition.”

Gusterson is deeply pessimistic about military neuroscience, which will not be limited to the United States.

Rapid advances in neuroscience could have a dramatic impact on national security and the way in which future wars are fought, US intelligence officials have been told.

In a report commissioned by the Defense Intelligence Agency, leading scientists were asked to examine how a greater understanding of the brain over the next 20 years is likely to drive the development of new medicines and technologies.

They found several areas in which progress could have a profound impact, including behaviour-altering drugs, scanners that can interpret a person’s state of mind and devices capable of boosting senses such as hearing and vision.

On the battlefield, bullets may be replaced with “pharmacological land mines” that release drugs to incapacitate soldiers on contact, while scanners and other electronic devices could be developed to identify suspects from their brain activity and even disrupt their ability to tell lies when questioned, the report says.

“The concept of torture could also be altered by products in this market. It is possible that some day there could be a technique developed to extract information from a prisoner that does not have any lasting side effects,” the report states.

The report highlights one electronic technique, called transcranial direct current stimulation, which involves using electrical pulses to interfere with the firing of neurons in the brain and has been shown to delay a person’s ability to tell a lie.

Drugs could also be used to enhance the performance of military personnel. There is already anecdotal evidence of troops using the narcolepsy drug modafinil, and ritalin, which is prescribed for attention deficit disorder, to boost their performance. Future drugs, developed to boost the cognitive faculties of people with dementia, are likely to be used in a similar way, the report adds.

Greater understanding of the brain’s workings is also expected to usher in new devices that link directly to the brain, either to allow operators to control machinery with their minds, such as flying unmanned reconnaissance drones, or to boost their natural senses.

For example, video from a person’s glasses, or audio recorded from a headset, could be processed by a computer to help search for relevant information. “Experiments indicate that the advantages of these devices are such that human operators will be greatly enhanced for things like photo reconnaissance and so on,” Kit Green, who chaired the report committee, said.

The report warns that while the US and other western nations might now consider themselves at the forefront of neuroscience, that is likely to change as other countries ramp up their computing capabilities. Unless security services can monitor progress internationally, they risk “major, even catastrophic, intelligence failures in the years ahead”, the report warns.

“In the intelligence community, there is an extremely small number of people who understand the science and without that it’s going to be impossible to predict surprises. This is a black hole that needs to be filled with light,” Green told the Guardian.

The technologies will one day have applications in counter-terrorism and crime-fighting. The report says brain imaging will not improve sufficiently in the next 20 years to read peoples’ intentions from afar and spot criminals before they act, but it might be good enough to help identify people at a checkpoint or counter who are afraid or anxious.

“We’re not going to be reading minds at a distance, but that doesn’t mean we can’t detect gross changes in anxiety or fear, and then subsequently talk to those individuals to see what’s upsetting them,” Green said.