What Is Cryptophasia (Twin Language)?

Cryptophasia is the ability of certain sets of twins or other multiples (including triplets) to communicate privately with one another using their own idiosyncratic language.

Causes:

- Unknown.

- Genetic factors and environmental influences.

- Neuropsychological factors.

Some potential explanations include:

- Prenatal communication: It has been suggested that cryptophasia may originate from the preverbal period when multiple fetuses are in the womb and establish vocal patterns that they maintain after birth.

- Shared experiences: Twins who spend a significant amount of time together may develop a unique bond that allows them to interpret nonverbal cues more effectively.

- Language development delay: In some cases, cryptophasia may be due to delayed language development in one or both twins. Rather than relying on the common vocabulary their peers are using, they may create their word combinations.

- Attention-seeking behavior: It is also possible that some twins may develop cryptophasia as a way to attract the attention of their parents or caregivers.

Cryptophasia typically develops during early childhood and usually disappears naturally as twins or multiples acquire more conventional language skills. However, in rare cases, cryptophasia can persist into adolescence or even adulthood.