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Archive for January, 2009

extendedmind
There’s a great new article on the extended mind, titled, “How Google Is Making Us Smarter“, in Discover Magazine’s latest issue. You should definitely check it out.

The theory of the extended mind suggests that the mind is not contained exclusively ‘inside’ the skull, but rather that it extends into the external environment. While our mind can use the structure of our brain to store information, it also uses other structures in the outside world for cognitive functioning too. The classic example for this is the use of notepads or chalkboards as extended memory. To aid in the memorization of things, like classroom lessons or a friend’s phone number, we often utilize records stored on chalkboards or cell phones to remind us later of the information. According to this theory, the mind is intricately connected to its external environment through this kind of cognitive scaffolding. In fact, this externalism is necessary for real time, efficient action in the world. It bypasses the problem of an information bottleneck that would hamper real time cognitive processing if we had to store all of the relevant information about the world internally.

The article in Discover debunks the old myth that increasingly useful technology is making us dumb and lazy because it lessens the burden on our own brains. Rather, technology like the internet is making us smarter, because it is increasing our capacity to network with the extended world.

The theory of the extended mind was first proposed by philosophers Andy Clark and David Chalmers in a short essay aptly titled “The Extended Mind” in 1998.

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According to a recent New York Times article, military pilots of unmanned Predator drones, who operate the drones from Las Vegas, over 7,500 miles away from where the drones are flying, experience more fatigue than actual pilots flying manned planes. The reason? Sensory isolation.

Since drone pilots operate remotely, they rely entirely upon cameras mounted on the planes to guide the planes through their environment. Unlike pilots who fly manned planes, who are embodied in the very situation that they’re operating within, drone pilots experience “significantly increased fatigue, emotional exhaustion and burnout”, according to the article. This overwhelmingly showcases the importance of taking into account the embodiment of perception and awareness.

Perhaps due to the predominance of a disembodied paradigm, these results may seem anti-intuitive. Shouldn’t the pilots who operate remotely, thousands of miles from harms way, have it easy? It turns out that reliable, healthy perception and cognition rely heavily upon sensory cues which can’t be abstracted from the conditions of lived, physical embodiment. Basically, it’s difficult to perceive the environment unless you’re actually in it.

That’s a powerful lesson. Understanding perception, or building a computer or robot which perceives, necessitates embodying the subject into the environment.

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Andy Clark

Andy Clark


Andy Clark is currently a Professor of Philosophy at the University of Edinburgh in Scotland, where he is also Chair in Logic and Metaphysics. Previously, he was director of the Cognitive Science Program at Indiana University in Bloomington.

His extensive publications on embodied cognition, connectionist neural networking and cognitive science have made him one of the key figureheads in the field, which he has helped to popularize and make accessible. This includes the keystone book, Being There: Putting Brain, Body and World Together Again, as well as Natural Born Cyborgs and Supersizing the Mind: Embodiment, Cognition and Cognitive Extension. He has also written a fabulous introduction to the philosophy of cognitive science, titled Mindware. You can access a list of his publications, and you can view many of them too, from his page at the University of Edinburgh.

Clark might be classified as an anti-representationalist, believing that mental representations are not detailed internal constructions of the world, as in a Cartesian theater, but rather that cognition is constructed by the world. That is, the world acts as cognitive scaffolding, and cognition is constructed through an intricate environmental interplay between mind, body and world. Clark’s position is typically referred to as the theory of the extended mind.

He also anticipates the development of cognitive prosthetics, electronic enhancements to aid the integration of the human mind with technology.

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