White Finger

White finger, sometimes also termed dead finger, is one of the dangers of vibration based haptic immersion over an extended period of time. It derives its name from the colour the body part initially turns on the onset of this condition. It is caused by a loss of blood flow by prolonged exposure to vibration, the same as experienced with heavy machinery, and despite the name, it can occur on any part of the body.

If exposure continues past the tissue bleaching, possible side effects include that body part turning numb, an increased sensitivity to cold, and finally, necrosis ? where the tissue literally starts to die off.

See also: Dead Finger

Below, we offer a selection of links from our resource databases which may match this term.

Dead Finger White Finger

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VR Interfaces: X-Finger

The X-finger currently retails for $10,000 US$ each piece, and does not rely on any form of robotics to articulate. It fits over the stub of an amputated finger, and the wearer simply pushes against a lever with the remaining portion of their finger, which sets the knuckles into motion.

Finger Movement Patterns for Complex Tasks Anticipate the Position for Task after Next
The movement of the natural body when it comes to in depth, detailed tasks that require lots of little finger movements, is it seems, something which is defined as much by the tasks before and after the one the fingers are doing, as it is by the task the fingers are doing right now. This is a real problem when it comes to figuring out how to replicate natural-looking finger movements.

Ishikawa Komuro Lab's high-speed robot hand
In May 2009, the Ishikawa Komuro Lab in Japan, demonstrated the capabilities that robotic manipulation of objects had reached. They had created a three-finger robot arm, with tactile sensors on its fingers, with each finger capable of independent 180 x 180 x 360 motion. All three were connected to a high-speed machine vision camera.

VR Interfaces: Ahra-A
The first of the Ahra series of robots was produced by KIST - the Korean Institute of Science and Technology - in 2005. This robot was identical in weight, height and body shape to the Mahru robots the institute also develops. However, there were some differences. Ahra's body was coloured orange and white instead of the blue and white of the Mahru series.

White House Deputy CTO Holds Dual Reality Event
Details of the first official US Government conference to address avatars in a virtual reality on an equal footing to physically present guests.

VR Interfaces: Fluidhand Prosthetic Hand

Fluidhand is a product of the Orthopaedic University Hospital in Heidelberg, Germany. It is the first complete hand prosthesis in which each finger moves separately, without being a separate unit.

VR Interfaces: Wii Balance Board (Wii Fit)

The Wii Balance Board is literally as it sounds. It is a small, white board you stand upon, with internal pressure pads in formation, to detect any slight changes in weight as your posture changes on top of it.

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