Wirehead (science fiction)
Wireheading is a term associated with fictional or futuristic applications of brain stimulation reward, the act of directly triggering the brain's reward center by electrical stimulation of an inserted wire, for the purpose of 'short-circuiting' the brain's normal reward process and artificially inducing pleasure. Scientists have successfully performed brain stimulation reward on rats (1950s) and humans (1960s). This stimulation does not appear to lead to tolerance or satiation in the way that sex or drugs do. The term is sometimes associated with science fiction writer Larry Niven, who used the term as early as the 1950s. In the philosophy of artificial intelligence, the term is used to refer to AI systems that hack their own reward channel.
More broadly, the term can also refer to various kinds of interaction between human beings and technology.
In Larry Niven's Known Space stories, a "wirehead" is someone who has been fitted with an electronic brain implant known as a "droud" in order to stimulate the pleasure centers of their brain. Wireheading is the most addictive habit known (Louis Wu is the only given example of a recovered addict), and wireheads usually die from neglecting their basic needs in favour of the ceaseless pleasure. Wireheading is so powerful and easy that it becomes an evolutionary pressure, selecting against that portion of humanity without self-control. A wirehead's death is central to Niven's Gil "the Arm" Hamilton story "Death by Ecstasy", published by Galaxy Magazine in 1969, and a main character in the book Ringworld Engineers is a former wirehead trying to quit.
Also in the Known Space universe, a device called a "tasp" which does not need a surgical implant (similar to transcranial magnetic stimulation) can be used to achieve similar goals: the pleasure center of a person's brain is found and remotely stimulated (considered a violation without seeking the person's consent beforehand). It is an important device in Niven's Ringworld novels.
Niven's stories explain wireheads by mentioning a study in which experimental rats had electrodes implanted at strategic locations in their brains, so that an applied current would induce a pleasant feeling. If the current could be obtained any time the rats pushed the lever, they would use it over and over, ignoring food and physical necessities until they died. Such experiments were actually conducted by James Olds and Peter Milner in the 1950s, first discovering the locations of such areas, and later showing the extremes to which rats would go to obtain the stimulus again.
In The Terminal Man (1972) by Michael Crichton, forty electrodes are implanted into the brain of the character Harold Franklin "Harry" Benson to control his seizures. However, his pleasure center is also stimulated, and his body begins producing more seizures in order to receive the pleasurable sensation.
- "wirehead | Definition of wirehead by Webster's Online Dictionary". www.webster-dictionary.org. Retrieved 20 February 2021.
Jargon (Probably from SF slang for an electrical brain-stimulation addict) A hardware hacker, especially one who concentrates on communications hardware.
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