Gesture or sign? A categorization problem.

Goldin-Meadow & Brentari (G-M&B) rely on a formalist approach to language, leading them to seek objective criteria by which to distinguish language and gesture. This results in the assumption that gradient aspects of signs are gesture. Usage-based theories challenge this view, maintaining that all linguistic units exhibit gradience. Instead, we propose that the distinction between language and gesture is a categorization problem.