Fofi Constantinidou, PhD; Robin D. Thomas, PhD; Lacy Robinson, MA, CCC-S
(2008). Benefits of Categorization Training in Patients With
Traumatic Brain Injury During Post–acute Rehabilitation: Additional
Evidence From a Randomized Controlled Trial. Journal of Head
Trauma Rehabilitation, 23(5), 312–328.
Background: Preliminary research with the Categorization Program (CP)
indicated that this therapeutic modality is beneficial in improving
cognitive abilities in survivors of moderate-to-severe traumatic brain
injury (TBI). This study provides additional evidence for the use of the CP
in postacute TBI cognitive rehabilitation. Methods: Twenty-one participants
in the experimental group received the CP training, and 14 participants in
the control group received the conventional treatment used at their
rehabilitation center. Following neuropsychological testing, participants
began their therapy program. Results: There was no significant difference
in the baseline performance of the 2 TBI groups on any of the measures.
CP-dependent measures correlated significantly with several
neuropsychological tests. Both groups improved in their neuropsychological
test performance and on functional outcomes tests. However, subjects in the
experimental group improved on more tests than participants in the control
group. Posttest performance of subjects in the TBI control group was
significantly lower on the CP Test 1 and CP Test 2 as compared with the
experimental group. Furthermore, the performance of participants in the CP
group improved across the 3 probe tasks demonstrating generalizability to
new tasks; the performance of participants in the control group did not
improve. Conclusions: The CP is an effective therapy method to reduce
categorization impairment and improve cognitive performance of survivors of
TBI who are enrolled in postacute rehabilitation. This study contributes to
the growing body of evidence supporting cognitive rehabilitation efforts
Ashley, M., Clark, M., Hall, M., Persel, C. and Lehr, R. (2005). Validation
of a New Measure for Post-Acute Rehabilitation (commentary).
International Journal of Therapy and Rehabilitation, 12(2), 63-71.
Constantinidou, F. and Kreimer, L. (2004). Feature Description and
Categorization of Common Objects After Traumatic Brain Injury: The Effects
of a Multi-Trial Paradigm. Brain and Language, 89(1), 216-225.
This study investigated the ability to describe and categorize common
objects following brain injury. Thirteen subjects with moderate to severe
traumatic brain injury (TBI) and 13 noninjured controls participated in
this project. The project consisted of 3 parts: 1. A spontaneous condition,
2. A training session, and 3. An application condition. During the
spontaneous condition, subjects were asked to describe common objects.
Following the spontaneous condition, subjects participated in a multi-trial
training session to learn 8 perceptual features. The protocol concluded
with an application condition where subjects were asked to apply all 8
features to describe additional objects. Overall, noninjured subjects
provided more features than the group with TBI. However, subjects with TBI
benefited from the training session, as they were able to learn more
features across the repeated trials. Furthermore, both groups performed
better during the application condition compared to the spontaneous
description of objects. The results indicate that the multi-trial training
session was effective in teaching subjects the 8 perceptual features..
Ashley, M. and Persel, C. (2003). Cognitive Rehabilitation for Traumatic
Brain Injury: A Survey of Clinical Practice. The Journal of
Cognitive Rehabilitation, 21(2), 20-27.
Cognitive rehabilitation for persons with traumatic brain injury has
been practiced since the lates 1970's. Recent trends in reimbursement for
cognitive rehabilitation are in seeming paradox with that fact that
cognitive rehabilitation has been widely considered to be of profound
importance in the therapeutic regimine following traumatic brain injury.
This survey attempted to review and report the attitudes of allied health
professionals familiar with cognitive rehabilitation and TBI.