Extraes

Extraes is a term used primarily in speculative technology and some fiction to describe subjective experiences that arise from external sensory data streams integrated into the nervous system through neural interfaces. In this framing, an extrae (singular) is a perceptual experience generated by external input that the brain interprets as a conscious sensation, rather than a natural internal sensation. The concept is meant to capture how external data sources could become directly felt, seen, or heard in ways that augment or substitute ordinary perception.

Etymology and scope are not standardized. The word combines the prefix extra- meaning outside with a plural suffix -es, but there is no widely accepted canonical definition in scientific literature. As a result, the term is mostly encountered in speculative writing, early experimental demonstrations, and discussions about potential future interfaces between humans and machines.

Usage and context. Extraes are discussed in the context of sensory augmentation, brain-computer interfaces, and neuroethics. In theoretical discussions, they may refer to data streams such as environmental telemetry, physiological signals, or computational models that are converted into perceptual forms—visual, auditory, tactile, or cross-modal—intended to extend human perception. In fiction, extraes often appear as vividly crafted experiences that allow characters to perceive information in novel ways, such as sensing data as colors or textures.

Relation to related concepts. The idea intersects with augmented reality, neuroprosthetics, and embodied cognition, but the term itself remains informal and nonstandard in formal research.