Can Collateral Behavior Account for Transitions in the Stimulus Control of Speech?

St Peter (2017) wrote a theory paper. It asks: what if tiny side behaviors steer what we say next?

The author says we should watch for collateral responses during speech. These small moves might explain sudden shifts in stimulus control.

Instead of only echoic or textual cues, the paper tells us to look at extra behavior that happens at the same time.

The paper does not give new data. It argues that collateral behavior can switch the cues that guide each new word.

In short, moment-to-moment talk may be pushed by quiet, easy-to-miss body or vocal acts.

Nelson et al. (1978) showed that college kids repeat words they just heard. Their lab demo is a clear echoic effect. St Peter (2017) keeps that idea but adds: watch for other responses that ride along with the echoic cue.

Castañe et al. (1993) tested if color recall is pure intraverbal or a tact to a private event. They found mixed control. St Peter (2017) widens the lens, saying any visible collateral act could be the real lever.

Sarber et al. (1983) framed hallucinations as self-intraverbal chains. St Peter (2017) uses the same spirit: look at the speaker’s own behavior, not hidden mind states, to explain verbal shifts.

Next time a client jumps topics, do a quick scan. Note finger taps, eye shifts, or tiny vocal sounds. These collateral acts might be the true stimuli you can manipulate. Treat them like data, not noise.