Pychologically-based procedures to control chronic pain, in general, a
nd cancer pain, in particular, are seldomly reported in the medical li
terature. Research data on pain control using psychological techniques
challenge the unidimensional sensory-physiological approach to pain.
Although biomedical treatment of cancer pain can be effective, they ar
e not free of limitations and side effects. In contrast, psychological
approaches to chronic cancer pain are noninvasive, and have proven to
be highly effective tools for interdisciplinary teams treating cancer
pain. Additionally, a two-fold role of cognitive variables has been r
ecognized: a) as responsible of maintaining and exacerbating chronic p
ain, and b) as mechanisms associated to the efficacy of biofeedback-ba
sed treatment.