The opening story in the virtual adept's tradition book for Mage The Ascension 1st edition.
EDIT:
Information Glut
- Virtual Adept Tradition Book page 62
Spheres: Mind 3, Correspondence 2, Time 2
Desc: Each success increases the target's perception by +1 up to truly insane levels. When used in conjunction with torture, it makes it near impossible to not succumb to the pain. However, it can be focused on just one sense, allowing the mage to use it on himself as well for more humane purposes.
In the story, a VA has this used on him for days on every sense, so when it is turned off, all of his senses are burned out, thus leaving him permanently in sensory deprivation.