This document contains a summary of the images found in this
directory, written by Jennifer Healey (fenn@mit.edu), please contact me
with any questions.

These images show prototypes for sensors used in the affective
computing project, led by Pr. Rosalind Picard at the MIT Media Lab
(picard@media.mit.edu)



cbvpesen.ps	(color)

contains the postscript image Jennifer Healey wearing a "blood volume
pressure" sensor that is encased in an earring.  This sensor uses
light to "look" at 
the amount of blood in the peripheral blood vessels of the earlobe.
The amount of light that is transmitted through the ear is a function
of the amount of blood in the blood vessels, the more blood present,
the less light is transmitted.  From this reading we can derive heart
rate and the relative constriction of the blood vessel (vasodilation)

This photograph was taken by Frank Dabek (fdabek@mit.edu)
************

cexpglass1.ps
cexpglass2.ps  

Image cexpglass1.ps shows Jocelyn Riseberg (rise@media.mit.edu) wearing
"Expression Glasses" which detect muscle motion of the brow using an
EMG sensor.  Image cexpglass2.ps shows the sensors inside the glasses.
For more information on the latest version of these glasses please
contact Jocelyn Riseberg (rise@media.mit.edu).

This photograph was taken by Fernando Padilla (fern@mit.edu)
************

cgsrfsen1.ps photograph by Fernando Padilla (fern@mit.edu)
cgsrfsen2.ps photograph by Fernando Padilla (fern@mit.edu)
cgsrfsen3.ps photograph by Fernando Padilla (fern@mit.edu)
cgsrfsen4.ps photograph by Fernando Padilla (fern@mit.edu)

cgsrtwsen.ps photograph by Fernando Padilla (fern@mit.edu)

cgsrpicsen.ps  photograph by Frank Dabek (fdabek@mit.edu)


These images show the many ways to wear a skin conductivity sensor.
Jennifer Healey models the skin conductivity sensing electrodes
embedded into shoes in the cgsrfsen1.ps  cgsrfsen2.ps  cgsrfsen3.ps
cgsrfsen4.ps  

She also shows how these electrodes could be embedded into a hand held
keyboard in cgsrtwsen.ps

or 

worn as rings in cgsrpicsen.ps.  This photo also shows the
structureused to hold the PAN_ICBS system which takes samples of the
analog skin conuctivity reading, convertes those readings into a
digital form which the computer understands and then transmits the
information wirelessly back to a wearable computer.