<unk>  is a change of the characteristics of one<unk>  modality into stimuli of another<unk>  modality. A<unk>  system consists of three parts: a<unk>  a coupling system, and a stimulator. The<unk> records stimuli and gives them to a coupling system which interprets these signals and transmits them to a stimulator. In case the<unk> obtains signals of a kind not originally available to the bearer it is a case of<unk>  augmentation.<unk>  concerns human perception and the plasticity of the human brain; and therefore, allows us to study these aspects of neuroscience more through neuroimaging.<unk>  systems may help people by restoring their ability to perceive certain defective<unk>  modality by using<unk>  information from a functioning<unk>  modality.
Sensory substitution
Haptic communication
Decompensation
Body substance isolation
Pruning
Central tolerance
Derealization
Postural restoration