The second half of the film is all about retrieving the data from Johnny’s implant without the full set of access codes. Johnny needs to get the data downloaded soon or he will die from the “synaptic seepage” caused by squeezing 320G of data into a system with 160G capacity. The bad guys would prefer to remove his head and cryogenically freeze it, allowing them to take their time over retrieval.
1 of 3: Spider’s Scanners
The implant cable interface won’t allow access to the data without the codes. To bypass this protection requires three increasingly complicated brain scanners, two of them medical systems and the final a LoTek hacking device. Although the implant stores data, not human memories, all of these brain scanners work in the same way as the Non-invasive, “Reading from the brain” interfaces described in Chapter 7 of Make It So.
The first system is owned by Spider, a Newark body modification
specialist. Johnny sits in a chair, with an open metal framework
surrounding his head. There’s a bright strobing light, switching on
and off several times a second.
Nearby a monitor shows a large rotating image of his head and skull, and three smaller images on the left labelled as Scans 1 to 3. Continue reading →
There are lots of brain devices, and the book has a whole chapter dedicated to them. Most of these brain devices are passive, merely needing to be near the brain to have whatever effect they are meant to have (the chapter discusses in turn: reading from the brain, writing to the brain, telexperience, telepresence, manifesting thought, virtual sex, piloting a spaceship, and playing an addictive game. It’s a good chapter that never got that much love. Check it out.)
This is a composite rendering of the shapes of most of the wearable brain control devices in the survey. Who can name the “tophat”?
Since the vast majority of these devices are activated by, well, you know, invisible brain waves, the most that can be pulled from them are sartorial– and social-ness of their industrial design. But there are two with genuine state-change interactions of note for interaction designers.
Star Trek: The Next Generation
The eponymous Game of S05E06 is delivered through a wearable headset. It is a thin band that arcs over the head from ear to ear, with two extensions out in front of the face that project visuals into the wearer’s eyes.
The only physical interaction with the device is activation, which is accomplished by depressing a momentary button located at the top of one of the temples. It’s a nice placement since the temple affords placing a thumb beneath it to provide a brace against which a forefinger can push the button. And even if you didn’t want to brace with the thumb, the friction of the arc across the head provides enough resistance on its own to keep the thing in place against the pressure. Simple, but notable. Contrast this with the buttons on the wearable control panels that are sometimes quite awkward to press into skin.
Minority Report (2002)
The second is the Halo coercion device from Minority Report. This is barely worth mentioning, since the interaction is by the PreCrime cop, and it is only to extend it from a compact shape to one suitable for placing on a PreCriminal’s head. Push the button and pop! it opens. While it’s actually being worn there is no interacting with it…or much of anything, really.
Head: Y U No house interactions?
There is a solid physiological reason why the head isn’t a common place for interactions, and that’s that raising the hands above the heart requires a small bit of cardiac effort, and wouldn’t be suitable for frequent interactions simply because over time it would add up to work. Google Glass faced similar challenges, and my guess is that’s why it uses a blended interface of voice, head gestures, and a few manual gestures. Relying on purely manual interactions would violate the wearable principle of apposite I/O.
At least as far as sci-fi is telling us, the head is not often a fitting place for manual interactions.
When the Mangalores meet with Zorg to deliver (what they think are) the stones, their leader Aknar is wearing a human disguise. The exact nature of the speculative technology is difficult to determine. (In fact, it’s entirely arguable that this is a biological ability, but it’s more useful to presume it’s not.)
Zorg tells Aknar, “What is that you? What an ugly face. It doesn’t suit you. Take it off.” Aknar strains his chin upward and shakes his head rapidly. As he does so, the disguise fades to reveal his true face.
Presuming it’s a technology, the gesture is a nice design choice for the interaction. It’s not a gesture that’s likely to be done accidentally, and has a nice physical metaphor—that of shaking off water. The physicality makes it easy to remember. Plus, being a head gesture, it can be deployed in the field even when carrying a weapon. This makes it possible to dismiss and show your identity to comrades without the risk of lowering your guard. It does temporarily limit the wearer’s ability to sense danger, but I suspect Mangalores care more about keeping their finger on the trigger.
Of course it raises the question of whether what results from the shake is just another disguise, but that would depend on some external system of multifactor authentication that’s separate from the gesture.