Article

The use of single-case methodology (SCM) in brain injury rehabilitation is
described and contrasted with other methodologies. SCM is optimal when attempting
to meet highly individual presentations or to trial innovative solutions.
Portable biofeedback is a potentially effective means of helping persons with
brain injury to recognise and regulate emotional states. Emotional dysregulation,
associated with disinhibition on tests of executive function, is hypothesised to
underpin aggressive challenging behaviour and may be amenable to feedback on
heart rate variability, a marker for stress. Two case studies of a novel
biofeedback intervention, emWave2, to address aggression directed towards the
self and towards others are presented. Data from two A-B designs were analysed
using the non-overlap all pairs (NAP) statistical method. Clinical significance
of outcome is reported in both cases but only Case 2 reached statistical
significance. The discussion highlights limitations of the methodology. Results
are discussed in relation to the device helping participants differentiate the
physiological state associated with stress. The future application of wearable
physiological sensing and feedback systems is explored.

Langue : ANGLAIS