gregv comments on Attention control is critical for changing/increasing/altering motivation - Less Wrong

174 Post author: kalla724 11 April 2012 12:48AM

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Comment author: kalla724 10 April 2012 10:22:45PM 11 points [-]

Yes, a lot of work has been done, and it is a hugely controversial area.

From my reading, the balance of evidence suggests that people can indeed exacerbate their pain by focusing on it, which is why I included the example in the article.

Whether training to ignore the pain makes it go away is harder to say. Some studies suggest that it does, some that it has no effect. Metastudies generally show no statistically significant effects - but I think people here already know to be wary of statistical significance as an end-all. One certain thing is that pain has its own rules, and utilizes several pathways that are not skill-like at all, which makes training it away somewhat iffy.

My colleagues who work on neuroscience of pain tend to be skeptical. Pain specialists I've spoken to tend to really like the approach; from what I hear, it has an unpredictable efficacy level (which could indicate that the effect is in large part placebo-based), but it often works extremely well.

A popular review that extolls the method is Morley et al. in Pain (80) 1999. Several self-help books on the subject are often recommended to patients by pain specialists; John Otis's "Managing Chronic Pain" is very popular.

As for the somewhat-opposing view, check out this Cochrane review (Cochrane is generally a highly reliable source) which shows much smaller effect size (although there still is a positive effect): Cochrane Database Syst Rev. 2009 Apr 15;(2):CD007407.

Comment author: Kaj_Sotala 11 April 2012 05:37:45AM *  5 points [-]

Hmm. The notion that concentrating on pain makes it worse seems to contradict the finding that mindfulness meditation, which mostly involves concentrating on your feelings, increases pain tolerance even while it thickens the areas related to pain-related processing. E.g. Grant et al. (2010)

Zen meditation has been associated with low sensitivity on both the affective and the sensory dimensions of pain. Given reports of gray matter differences in meditators as well as between chronic pain patients and controls, the present study investigated whether differences in brain morphometry are associated with the low pain sensitivity observed in Zen practitioners. Structural MRI scans were performed and the temperature required to produce moderate pain was assessed in 17 meditators and 18 controls. Meditators had significantly lower pain sensitivity than controls. Assessed across all subjects, lower pain sensitivity was associated with thicker cortex in affective, pain-related brain regions including the anterior cingulate cortex, bilateral parahippocampal gyrus and anterior insula. Comparing groups, meditators were found to have thicker cortex in the dorsal anterior cingulate and bilaterally in secondary somatosensory cortex. More years of meditation experience was associated with thicker gray matter in the anterior cingulate, and hours of experience predicted more gray matter bilaterally in the lower leg area of the primary somatosensory cortex as well as the hand area in the right hemisphere. Results generally suggest that pain sensitivity is related to cortical thickness in pain-related brain regions and that the lower sensitivity observed in meditators may be the product of alterations to brain morphometry from long-term practice.

(For more on mindfulness meditation reducing the effects of pain, see e.g. here, here, here, or here).

On the other hand, mindfulness is a very specific way of paying attention to something - a non-judgemental approach where the unpleasant feelings are just observed as they appear and disappear. It seems reasonable to assume that other ways of focusing on pain might indeed make it worse.

Comment author: [deleted] 11 April 2012 04:06:29PM 0 points [-]

Right, I think it depends on how the "mindfulness" is directed. One teacher (Eckhart Tolle) suggests concentrating attention on (sorry for fuzzy terminology) internal energy in your limbs and a general sense of well-being. When pain impinges on this meditation, you notice and try to redirect your attention.