کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
916929 | 919006 | 2011 | 33 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Is comprehension necessary for error detection? A conflict-based account of monitoring in speech production Is comprehension necessary for error detection? A conflict-based account of monitoring in speech production](/preview/png/916929.png)
Despite the existence of speech errors, verbal communication is successful because speakers can detect (and correct) their errors. The standard theory of speech-error detection, the perceptual-loop account, posits that the comprehension system monitors production output for errors. Such a comprehension-based monitor, however, cannot explain the double dissociation between comprehension and error-detection ability observed in the aphasic patients. We propose a new theory of speech-error detection which is instead based on the production process itself. The theory borrows from studies of forced-choice-response tasks the notion that error detection is accomplished by monitoring response conflict via a frontal brain structure, such as the anterior cingulate cortex. We adapt this idea to the two-step model of word production, and test the model-derived predictions on a sample of aphasic patients. Our results show a strong correlation between patients’ error-detection ability and the model’s characterization of their production skills, and no significant correlation between error detection and comprehension measures, thus supporting a production-based monitor, generally, and the implemented conflict-based monitor in particular. The successful application of the conflict-based theory to error-detection in linguistic, as well as non-linguistic domains points to a domain-general monitoring system.
► A new model of monitoring in speech production is proposed.
► Conflict in the production system is used as a signal for error detection.
► Predictions derived from computational simulations are tested on aphasic patients.
► Conflict-based model is supported over perceptual loop account of error detection.
Journal: Cognitive Psychology - Volume 63, Issue 1, August 2011, Pages 1–33