Intonation unit analysis of conversational discourse in closed head injury

This study employed a modification of the intonation unit analysis for conversational discourse developed by Mentis and Prutting. The percentage of total intonation units produced within separate ideational categories was calculated for groups of closed head-injured and normal control subjects as well as the examiner. No significant differences were found between subject groups or the examiner's performance within the two groups. However, significant differences were noted between the examiner's production of intonation units and the performances of both subject groups. Findings suggest the manner in which samples of conversation were elicited may have constrained the context, thereby masking potential differences between groups.