Brain-Computer Interface

Upplagd av Dullal Ghosh

Brain-Computer Interface (BCI) is a direct communication medium between a brain and an external device. The thoughts of a person could directly be converted to actions without a slightest muscle movement. It could be invasive or non-invasive type. The first one uses direct implantation of electrode in brain while the second one uses electrodes mounted on the scalp. The electrodes measures the electrical or magnetic field or blood flow changes due to activity of neurons. Electroencephalography or Magnetoencephalography or functional magnetic resonance imaging could be used for this purpose.

It is most beneficial to persons with locked-in syndrome or total paralyses for communicating the thoughts with their environment.

The complication exist to in capturing the activities of millions of neurons in brain and also the pattern of data varies not only from person to person but also from day to day and even event to event.

An interesting game developed using this BCI technology is 'Mind Ball' preceded by an earlier version known as 'Brain Ball'.

Video Clips:

Mindball on ABC

'Monkey controls robotic arm with brain computer interface'

Wheelchair Mounted Robotic Arm (WMRA)


Upplagd av Jeremie


Link: http://itp.nyu.edu/sigs/wearables/intimate-game-controllers, http://www.jennylc.com/intimate_controllers/

Video: http://www.youtube.com/watch?v=f2ocGIQL55s

It’s a game that you’re playing in couple. Like an erotic game, where you have to touch your partner’s body (in precise area) to win. The man is wearing a boxer, and the girl is wearing a bra.


The technology used here is has to be wearable. The sensors are FSRs - force sensing resistors, they detect where you touched your partner. The Atmel chips is the microcontroller used to interface the sensors with the computer.

And off course there are clothes: a bra, a boxer.

Motivation and strengths:

It raises the question of how game can change our interactions, how it can bring husband game players to their wives.

Innovative controversial, pushing the limits in game controllers.

“Excuse” for intimacy and way to relax.


The position of the sensors enables only one game position, and it is not so equal because the men is behind the girl.

The game is a little bit basic, so it can be boring so fast.

How would we improve it

Put different kind of sensors for different kinds of sensual experiences: more sensitive – gentle touch, less sensitive for harder touch. Type of sensors directs the interaction and the experience.

Use the game for cooperative rather competitive game. Weird intimacy should go with collaboration.

It can be fun to put a Multiplayer mode. Moreover this game is not designed for gay people.


Upplagd av notvena


Original design by Corey Lane Menscher

Kickbee is a wearable device that can sense the baby kicking in the mother’s womb and share that information with others. Each time the baby kicks, the kicks is being sensed and recorded through a belt that future mother wears, and then information about that is being sent to a twitter. In this way father and other people that are not physically close could still share the information about baby’s activity during the pregnancy and in this way try to share the experience of pregnancy.

Check out the video at http://kickbee.net/.


Kickbee uses the advantages of a wearable technology. Piezoo sensors that can sense small movements underneath it are placed inside an elastic fabric. Every time the movement is detected, after a baby kick, the info is being sent wirelessly through a Bluetooth to a Java application on computer near buy and then being posted to twitter through Twitter API.

Motivation & Strengths

We liked this device because it aims to enable parents to share the time of pregnancy and experience and exciting of expecting a child. We also liked that it is family oriented which is an area where we don’t see so many products. We find Kickbee to be a smart way of using a technology to assist and enrich everyday live, and bridge the limitations of physical separation.


The weakness that comes from the technology used is that the pregnant woman that uses the belt has to be still. Otherwise her regular movements would be interpreted as baby kicks. Also in the current implementation, the message about baby kick could be sent too often and thus bore the user, with the same kind of repetitive information.

Furthermore the computer has to be in the close proximity to the Kickbee belt which limits the situations and the environment in which it could be used.

How would we improve it

Primarily, if the information is being shown on a computer or through a message, we would like to see a visualization of data, throughout the period. This would solve the problem of data sometimes being sent to often. Instead we could see how active the baby was that day: for example “Your baby was super active today” or “Your baby is a bit sleepy today.”

But more importantly we would like to have the feedback shown in another type of way: through a physical experience, rather than text message. The father could be waring similar belt, with sensors, which would trigger vibrations in places and with intensity in which the original kick was noticed. This would require a bit of change of technology in the original belt, because it would need to record the position as well. But we believe that in this way the experience of the pregnancy and baby kicks would be transferred and shared in the more appropriate way. For example, this approach of recording physical activity and recreating was used in Funambrella http://www.youtube.com/watch?v=XlFmwxYisP8.

  • Visualization of the data received
  • The feedback is expressed in the same manner as it was received – as vibration or touch, in the look like belt that daddy would be wearing. In that way they would be really sharing the physical experience.

Manual Input Sessions

Upplagd av Calle

The technology in this project is a combination of analog overhead projectors and digital computer video projectors. Custom interactive software, computer vision system, synthetic graphics and sounds that are tightly coupled to the forms and movements of the performers’ actions. You can call it a kind of augmented-reality.

Motivation & Strengths
We like this project because of its playfulness. The system has small physical constraint, all you need is your hands or parts of your body to generate sounds. Everything you do is created in the air so there is freedom of movement. You can use all kinds of closed shapes and we think these small limitations inspires creativity. The system is very artistic, intuitive and easy to use by everybody. Great possibilites to extend it with new features.

The setup is complicated, stationary and quite expensive.

How would we improve it?
Add more options to change sounds and colors of the projections. A bigger surface to allow for multiple people interacting at the same time would enhance the user-experience.

Sixth Sense Technology

Upplagd av TomElsten

Sixth sense technology allows (almost) any surface to become interactive by creating an augmented reality. Said device consists of a small projector, combined with a mobile phone and a camera suspended around ones neck. The camera constantly reads and analyzes every object in front of the user and projects additional information on it. By using special finger caps, gestures can be used as input for the device. With this technology, ubiquitous computing could change from an environment where there are computers embedded everywhere to a central personal computer that simply analyzes everything that goes on around us. Because the device is connected to an external computer that does all of the calculations, a small size is ensured. The most fascinating about this technology is that (almost) any object can become interactive and that you are connected all the time. Whether the latter is a good thing remains the subject of debate.

Link to video and website of inventor.

The magic lens can provides 3d explorations of rich datasets. By moving the magic lens through the volume, the lens can be volumetric, layered, zoomable, or temporal information spaces.
It is just like a special eye to look at the data world!

Technical setup:

- Camera: detect the paper

- Projector: project both on the table and the paper

The device is easy to use. By moving a tracked sheet of paper, the user can explore more information on the tabletop display. Users don’t even have to use fingers to touch the paper. They can control the paper by their natural movement.

It provides a new method of exploring the inside world. Traditionally, we use pictures, models, computer models to let people know what it looks like inside the things. This design makes it possible to see any cut-plane slice of the thing conveniently.

It can be apply to explosion or education. It is a promising device!

Motivation: To solve the challenge of exploring large information spaces on interactive surfaces.


Upplagd av Fredrik Persson

From an early age children are used to creating people and places with implied context in their drawings. Learning how to contextualize an oral or written story without using images is a much slower learning process. Jabberstamp is a tool that gives children the opportunity to communicate sound through their drawings. By pressing a special rubber stamp on their drawing they can record sound. The sounds can then be played back by putting a pen with a trumpet on the stamp. This can be an effective tool for children on different development levels to communicate with each other.


RayMatic Group 4

Upplagd av Johan

RayMatic – Emetional aspect in hci

In the RayMatic project they build an thermostat display that looks like a frame with a human face that’s react emotional on temperatures in the room with facial expressions and gestures instead of the classic numeric displays. If it´s warm he will fanning himself, if you touch the person on the shoulder you get the setting mode.

It´s interesting to use the emotional feelings in human computer interaction.

A youtube video demonstration
The acm article

Digital media and files today are most commonly moved from one digital device to another by using USB drives, external hard disks or Dropbox. SPARSH is a project exploring a new interaction method which allows users to seamlessly transfer data between digital devices in an intuitive way. Data is moved by touching the screen of the device from which the user wants to move the data and then touching the screen of the device to which the content should be transferred - a simple copy and paste procedure.

The project is interesting as touch screen technology is fairly widespread and as argued it could be considered an intuitive mean of interacting with different devices.

The adaptive mouse uses a hall-effect sensor along with a magnet and a piece of foam(for deformation properties). The sensor then measures the magnetic field and translates it to a voltage value which depends on the distance to the magnet. This is then send as a digital signal to a micro-controller unit to determine the users hand configuration to adapt the properties of the mouse.

Motivation: This project is interesting because of how sensors and material is being combined to create a mouse that is not only fully functional, but can also change shape according to the users preference and sense if the user is left- or righthanded to adapt accordingly.

The change to an approach of interactivity were users interacts directly with a display (ipod, iphone etc) rather than indirectly (mouse and keyboard) is quite challenging. This is microsofts take on how to interact directly with a display through the technique “pen + touch”.

Motivation: It’s an interesting thing for artists and designers to interact with a display in a more creative way than maybe a regular mouse-pen or just a mouse and keyboard.

We all take it for granted using the Internet for browsing after information and we use touch screens and smart phones in our everyday life. Individuals with visibility impairments does not have the same options as most of us do.

TeslaTouch is a technology designed to provide tactile sensation to moving fingers on touch screens much like the Braille (the "dots") does on normal paper. Below is a conceptual image of a TeslaTouch system:

TeslaTouch uses no motors or moving parts, instead relying on a conductive layer coated with an insulating layer. The finger rests on the insulating laying and, when a voltage difference is applied between the finger and the conductive layer an attractive force is induced. This attractive force can be manipulated by using different levels of voltage and it yields more friction for the finger.

This product can one day be a helpful tool for visibility impaired individuals.