Faculty Bibliography

Primary objective: To determine if individuals with brain injury can modify heart rate variability (HRV) through biofeedback and, if so, enhance its pattern to improve emotional regulation and problem-solving ability. Design: A quasi-experimental design with repeated measures was employed. Thirteen individuals aged 23-63 years with severe brain injury (13-40 years post-onset) participating in a community-based programme were enrolled. Main outcomes: Response-to-treatment was measured with HRV indices, Behavior Rating Inventory of Executive Function (BRIEF-A-Informant) and attention/problem-solving tests. Results: At post-treatment, HRV indices (Low Frequency/High Frequency [LF/HF] and coherence ratio) increased significantly. Increased LF/HF values during the second-half of a 10-minute session were associated with higher attention scores. Participants who scored better (by scoring lower) in informant ratings at pre-treatment had highest HRV scores at post-treatment. Accordingly, at post-treatment, families' ratings of participants' emotional control correlated with HRV indices; staffs' ratings of participants' working memory correlated with participants' HRV indices. Self-ratings of the BRIEF-A Task Monitoring scale at post-treatment correlated with family ratings at pre-treatment and post-treatment. Conclusions: Results demonstrate an association between regulation of emotions/cognition and HRV training. Individuals with severe, chronic brain injury can modify HRV through biofeedback. Future research should evaluate the efficacy of this approach for modifying behavioural problems.

Objective: The goal of this paper is to illustrate how the lessons learned in over 20 years of randomized clinical trials have advanced cognitive rehabilitation beyond traditional approaches to problem solving by more explicitly integrating subjective self-appraisal factors in routine clinical practice. Results: The concept of problem orientation, as proposed by cognitive-behavioral psychologists, provides a much-needed framework for conceptualizing interventions to address the impact of subjective experience on cognitive functioning, within the context of cognitive remediation. By explicitly focusing on the beliefs, assumptions, and expectations that individuals with acquired brain injury have about their own cognitive functioning, the concept of problem orientation allows rehabilitation psychologists to add an element to interventions, not systematically addressed in standard approaches to cognitive remediation. Targeting objective deficits in cognitive remediation is necessary, but not sufficient: For optimal benefit, remedial interventions must address objective cognitive deficits and the patient's subjective experience of such deficits in tandem. Conclusion: Contemporary evidence-based treatment recommendations now typically include incorporating interventions to address motivational, attitudinal, and affective factors in cognitive remediation. Further research is needed to directly compare the effectiveness of cognitive rehabilitative interventions that systematically address subjective factors with those that do not. (PsycINFO Database Record (c) 2011 APA, all rights reserved)

The current article describes critical issues in adapting traditional group-treatment methods for working with individuals with reduced cognitive capacity secondary to acquired brain injury. Using the classification system based on functional ability developed at the NYU Rusk Institute of Rehabilitation Medicine (RIRM), we delineate the cognitive and interpersonal capabilities that differentiate group-participation capacity. An overview of the RIRM interventional process, including strategies of change (cognitive remediation versus psychosocial groups), is provided. Empirical support for the RIRM method of group assignment and treatment outcomes for our model is also referenced.