Paralanguage

Four traditional folk dancers displayed different outfits, each representing a particular style, pieces, headwear, and accessories.  Each of these outfits, and the pieces within them, represented various things about the person, such as marital status, religious affiliation, profession, and personal interest.

After the dancer’s work was through, they changed into their street clothes, and each of these communicated different messages than the traditional outfits.  For these outfits, the messages were based more on a complex series of personal tastes and styles, rather than the social categories described above.

This transition in itself communicates something culturally that has happened over time.

I’m looking for information on this; a study of how paralanguage has changed.  Please comment if you know of any sources.