Saying “stimulus” as the result of seeing a light come on is also not intraverbal because the prior controlling stimulus is non-verbal.
A form of verbal behavior with the following features:
A verbal response
The prior controlling variable is a verbal stimulus
There is NO point-to-point correspondence between the stimulus and the response
The specific topography and dynamic characteristics of the vocal response
The musculature involved in executing the response
The modality of the prior verbal stimulus (usually either visual or auditory)
Dynamic features of either the stimulus or the response
The “correctness” of the response