In addition, in some embodiments, the force applied by the cutaneous actuators may be calibrated per-user, such that each user experiences a similar subjective level of force from the cutaneous actuators for the same objective level of force generated by the haptic illusion signals. This allows for a consistent experience throughout a user base. Additional details regarding calibration of the cutaneous actuators is described below with reference to 
Development of Lexicon for Haptic Communication
Haptic communication a mode of communication that is alternative or additional to other modes of communication that is currently widely used such as speech or text. The haptic communication can be agnostic to written or spoken languages, and can enhance or supplement communication between multiple users through word embedding. The haptic communication can also be used to facilitate communication with users with special needs such as deaf or blind people.
Words to be included in lexicon for use in haptic communication can be selected on the basis of most frequent use. For transmitting sense of haptic social touch from one user to another user, the lexicon may include haptic messages for greeting, parting, giving attention, helping, consoling, calming, pleasant, and reassuring touches. When converting speech to haptic output, most widely used words may be selected and mapped to a predetermined set of haptic symbols, as described below in detail with reference to