Characterizing Discourse Deficits Following Penetrating Head Injury: A Preliminary Model Purpose Discourse analyses have demonstrated utility for delineating subtle communication deficits following closed head injuries (CHIs). The present investigation examined the discourse performance of a large group of individuals with penetrating head injury (PHI). Performance was also compared across 6 subgroups of PHI based on lesion locale. A preliminary model ... Supplement Article
Supplement Article  |   May 01, 2013
Characterizing Discourse Deficits Following Penetrating Head Injury: A Preliminary Model
 
Author Affiliations & Notes
  • Carl Coelho
    University of Connecticut, Storrs
  • Karen Lê
    University of Connecticut, Storrs
  • Jennifer Mozeiko
    University of Connecticut, Storrs
  • Mark Hamilton
    University of Connecticut, Storrs
  • Elizabeth Tyler
    University of Connecticut, Storrs
  • Frank Krueger
    George Mason University, Fairfax, VA
  • Jordan Grafman
    Rehabilitation Institute of Chicago, IL
  • Correspondence to Carl Coelho: coelho@uconn.edu
  • Editor: Swathi Kiran
    Editor: Swathi Kiran×
  • Associate Editor: Leora Cherney
    Associate Editor: Leora Cherney×
Article Information
Attention, Memory & Executive Functions / Traumatic Brain Injury / Supplement: Select Papers From the 42nd Clinical Aphasiology Conference
Supplement Article   |   May 01, 2013
Characterizing Discourse Deficits Following Penetrating Head Injury: A Preliminary Model
American Journal of Speech-Language Pathology, May 2013, Vol. 22, S438-S448. doi:10.1044/1058-0360(2013/12-0076)
History: Received July 25, 2012 , Revised October 9, 2012 , Accepted February 21, 2013
 
American Journal of Speech-Language Pathology, May 2013, Vol. 22, S438-S448. doi:10.1044/1058-0360(2013/12-0076)
History: Received July 25, 2012; Revised October 9, 2012; Accepted February 21, 2013
Web of Science® Times Cited: 11

Purpose Discourse analyses have demonstrated utility for delineating subtle communication deficits following closed head injuries (CHIs). The present investigation examined the discourse performance of a large group of individuals with penetrating head injury (PHI). Performance was also compared across 6 subgroups of PHI based on lesion locale. A preliminary model of discourse production following PHI was proposed and tested.

Method Story narratives were elicited from 2 groups of participants, 167 with PHI and 46 non brain–injured (NBI). Micro- and macrostructural components of each story were analyzed. Measures of memory, executive functions, and intelligence were also administered. All measures were compared across groups and PHI subgroups. The proposed model of discourse production was tested with a structural equation modeling procedure.

Results No differences for the discourse measures were noted across the six PHI subgroups. Three measures distinguished the PHI and NBI groups: narrative length, story grammar, and completeness. The proposed model of discourse production had an adequate-to-good fit with the cognitive and discourse data.

Conclusion In spite of differing mechanisms of injury, the PHI group's discourse performance was consistent with what has been reported for individuals with CHI. The model tested represents a preliminary step toward understanding discourse production following traumatic brain injury.

Acknowledgment
For more information on the Vietnam Head Injury Study, please contact Jordan Grafman (jgrafman@ric.org).
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