Abstract
SummaryIt is hypothesised that a stutter is a false alarm, or superfluous correction response to speech feedback signals, such that the overt behavioural response is the repetition of a speech unit. The experiment attempts to elicit stuttering in normals by setting up two conditions, anxiety and divided attention, in which false alarms in any perceptual‐motor task would be predicted. The divided attention condition does increase stutters. The anxiety condition does not increase stutters, but increases the probability of a speech error being corrected, indicating that anxiety directs attention to speech feedback. Auditory masking reduces stutters in all conditions, demonstrating the crucial role of auditory feedback in normal as well as in pathological speech disfluencies. The distribution of elicited stutters is analogous to the distribution of false alarms in orthodox signal detection experiments.
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