Sensing behavior change in chronic pain: a scoping review of sensor technology for use in daily life.

ABSTRACT: Technology offers possibilities for quantification of behaviors and physiological changes of relevance to chronic pain, using wearable sensors and devices suitable for data collection in daily life contexts. We conducted a scoping review of wearable and passive sensor technologies that sample data of psychological interest in chronic pain, including in social situations. Sixty articles met our criteria from the 2783 citations retrieved from searching. Three-quarters of recruited people were with chronic pain, mostly musculoskeletal, and the remainder with acute or episodic pain; those with chronic pain had a mean age of 43 (few studies sampled adolescents or children) and 60% were women. Thirty-seven studies were performed in laboratory or clinical settings and the remainder in daily life settings. Most used only 1 type of technology, with 76 sensor types overall. The commonest was accelerometry (mainly used in daily life contexts), followed by motion capture (mainly in laboratory settings), with a smaller number collecting autonomic activity, vocal signals, or brain activity. Subjective self-report provided "ground truth" for pain, mood, and other variables, but often at a different timescale from the automatically collected data, and many studies reported weak relationships between technological data and relevant psychological constructs, for instance, between fear of movement and muscle activity. There was relatively little discussion of practical issues: frequency of sampling, missing data for human or technological reasons, and the users' experience, particularly when users did not receive data in any form. We conclude the review with some suggestions for content and process of future studies in this field.

The effects of psychological meaning-centered therapies on quality of life and psychological stress: A metaanalysis.

ABSTRACTObjective:Many psychotherapists speak with clients about meaning in life. Meaning is an neutral evidence-based term for a subjective sense of purpose, values, understanding, self-worth, action-directed goals, and self-regulation. Since little is known about its effectiveness, our study aimed to determine the effects of meaning-centered therapies (MCTs) on improving quality of life and reducing psychological stress. METHOD: Independent researchers selected and scored articles in multiple languages in multiple search engines. Weighted pooled mean effects were calculated following a random-effects model. Sensitivity analyses included moderators, study and sample characteristics, risk of bias, randomization, types of MCT, control condition, and outcome instruments. RESULTS: Some 52,220 citations included 60 trials (total sample N = 3,713), of which 26 were randomized controlled trials (N = 1,975), 15 nonrandomized controlled trials (N = 709), and 19 nonrandomized noncontrolled trials with pre/post measurements (N = 1,029). Overall analyses showed large improvements from baseline to immediate posttreatment and follow-up on quality of life (Hedges' g = 1.13, SE = 0.12; g = 0.99, SE = 0.20) and psychological stress (g = 1.21, SE = 0.10; g = 0.67, SE = 0.20). As effects varied between studies, further analyses focused only on controlled trials: MCT had large effect sizes compared to control groups, both immediate and at follow-up, on quality of life (g = 1.02, SE = 0.06; g = 1.06, SE = 0.12) and psychological stress (g = 0.94, SE = 0.07, p < 0.01; g = 0.84, SE = 0.10). Immediate effects were larger for general quality of life (g = 1.37, SE = 0.12) than for meaning in life (g = 1.18, SE = 0.08), hope and optimism (g = 0.80, SE = 0.13), self-efficacy (g = 0.89, SE = 0.14), and social well-being (g = 0.81, SE = 13). The homogeneity of these results was validated by the lack of significance of moderators and alternative ways of selecting studies. Metaregression analyses showed that increases in meaning in life predicted decreases in psychological stress (ß = -0.56, p < 0.001). SIGNIFICANCE OF RESULTS: MCT strongly improves quality of life and reduces psychological stress. MCT should be made more widely available, particularly to individuals in transitional moments in life or with a chronic or life-threatening physical illness as they explicitly report meaning-centered concerns.