Most bionic implants are designed to be controlled by simple mental commands in the same way as natural body parts; originally by painstaking training of the sensory and motor cortices to recognize the device and its functions, and in more recent times by engraving neuralware device drivers into the augmentee’s neural net. Either technique permits the use of an implanted device to be as easy and unconscious as flexing a muscle, rather than requiring the clumsy use of mnemonic sequences, narrative command phrases, or entoptic interfaces.
The problem with this, on the other hand, is that it bypasses the brain’s normal learning-to-mastery sequence, and until one is accustomed to the operation and functionality of such a device, it really shouldn’t be quite so easy and unconscious to use. That twitchy reflex that causes you to drop your drink and knock over your chair is merely a cause for mild embarrassment, whereas that twitchy reflex that causes you to pop off a cluster of micro-missiles and burn down the bar with your laser eyes is a cause for significantly more embarrassment, not to mention substantial liability and criminal charges.
Thus, induced startup dysphoria. This piece of neuralware exists to partially counter the effect of the neuralware drivers and make the implant feel unnatural and/or uncomfortable – to a mild degree, and continuously diminishing on a curve – for an appropriate acclimation period (usually defined in terms of a number of activation cycles) – in a manner which deters the brain from incorporating it into reflexive or non-deliberative-cognition-based actions until the augmentee has had the opportunity to properly internalize its functions. Mayhem beyond this point can safely be assumed to be intentional.
(Often, less scrupulous augmenteries in the black and red market segments omit the provision of an ISD module. It is unknown how many unintentional firefights this practice has started, but since many of these augmenteries leave the client’s new implant disabled until they have left the back office, it seems certain that they’re aware of the issue. As in every other business, you get what you pay for.)
– Augmentery’s Almanac