I want to propose that glossolalia should be defined as a vocalization pattern, a speech automatism, that is produced on the substratum of hyperarousal dissociation, reflecting directly, in its segmental and suprasegmental structure, neurophysiologic processes present in this mental state.

Let me interpret: hahahahaha.

The above quotation is cited by D. A. Carson in Showing the Spirit (page 184) merely as an example of physiological explanations of tongues-speaking.  Don’t be scared.  The rest of Carson’s book is not only intelligible but immensely helpful in sorting out 1 Corinthians 12-14.  Regardless of one’s position on the continuation of the so-called charismatic gifts, Carson’s book provides solid argumentation that deserves a hearing.

But that quote.  Man, that quote is really something.