Project 1 will focus on a promising novel alternative therapy for CLBP real-time fMRI neurofeedback which trains patients to control specific neural processes that lead to improvements in pain. Project 2 will characterize the pain modulatory and emotion regulatory effects of mindfulness based stress reduction and cognitive behavioral therapy for CLBP. Project 3 will characterize psychophysical and neuroimaging based neural mechanisms underlying verum and placebo acupuncture.