Perceived treatment group affects behavioral and neural responses to visceral pain in a deceptive placebo study
Background To assess effects of perceived treatment (ie drug vs placebo) on behavioral and
neural responses to rectal pain stimuli delivered in a deceptive placebo condition. Methods�…
neural responses to rectal pain stimuli delivered in a deceptive placebo condition. Methods�…
Neural mechanisms mediating the effects of expectation in visceral placebo analgesia: an fMRI study in healthy placebo responders and nonresponders
S Elsenbruch, V Kotsis, S Benson, C Rosenberger…�- Pain, 2012 - Elsevier
This functional magnetic resonance imaging study analysed the behavioural and neural
responses during expectation-mediated placebo analgesia in a rectal pain model in healthy�…
responses during expectation-mediated placebo analgesia in a rectal pain model in healthy�…
Are there sex differences in placebo analgesia during visceral pain processing? A fMRI study in healthy subjects
N Theysohn, J Schmid, A Icenhour…�- …, 2014 - Wiley Online Library
Background We explored sex differences in the neural mechanisms mediating placebo
analgesia in an established visceral pain model involving painful rectal distensions in�…
analgesia in an established visceral pain model involving painful rectal distensions in�…
Neural mechanisms mediating positive and negative treatment expectations in visceral pain: a functional magnetic resonance imaging study on placebo and nocebo�…
J Schmid, N Theysohn, F Ga�, S Benson, C Gramsch…�- PAIN�, 2013 - Elsevier
To elucidate placebo and nocebo effects in visceral pain, we conducted a functional
magnetic resonance imaging (fMRI) study to analyze effects of positive and negative�…
magnetic resonance imaging (fMRI) study to analyze effects of positive and negative�…
Placebo analgesia in patients with functional and organic abdominal pain: a fMRI study in IBS, UC and healthy volunteers
J Schmid, J Langhorst, F Ga�, N Theysohn, S Benson…�- Gut, 2015 - gut.bmj.com
Objective Understanding the neural circuitry of placebo analgesia in the context of visceral
pain is increasingly important given evidence of clinical benefit of placebo treatment in IBS�…
pain is increasingly important given evidence of clinical benefit of placebo treatment in IBS�…
[HTML][HTML] Enhancing the placebo response: functional magnetic resonance imaging evidence of memory and semantic processing in placebo analgesia
Two groups of patients with irritable bowel syndrome rated pain and underwent functional
magnetic resonance imaging brain scanning during experimentally induced rectal�…
magnetic resonance imaging brain scanning during experimentally induced rectal�…
Placebo effects in idiopathic and neuropathic pain conditions
L Vase, GL Petersen, K Lund�- Placebo, 2014 - Springer
The magnitude of placebo analgesia effect appears to be large in chronic pain patients
experiencing hyperalgesic states. So far, placebo effects have primarily been investigated in�…
experiencing hyperalgesic states. So far, placebo effects have primarily been investigated in�…
Enhanced affect/cognition-related brain responses during visceral placebo analgesia in irritable bowel syndrome patients
HF Lee, JC Hsieh, CL Lu, TC Yeh, CH Tu, CM Cheng…�- Pain, 2012 - Elsevier
Placebo analgesia is a psychosocial context effect that is rarely studied in visceral pain.
Patients with irritable bowel syndrome (IBS) exhibit visceral hyperalgesia and heightened�…
Patients with irritable bowel syndrome (IBS) exhibit visceral hyperalgesia and heightened�…
Neuronal correlates in the modulation of placebo analgesia in experimentally-induced esophageal pain: a 3T-fMRI study
HC Lu, JC Hsieh, CL Lu, DM Niddam, YT Wu, TC Yeh…�- Pain, 2010 - Elsevier
Visceral pain/discomfort is the cardinal complaints and treatment targets for functional
gastrointestinal disorders (FGID). However, effective treatment for such pain is limited and�…
gastrointestinal disorders (FGID). However, effective treatment for such pain is limited and�…
Placebo analgesia is accompanied by large reductions in pain-related brain activity in irritable bowel syndrome patients
Previous experiments found that placebos produced small decreases in neural activity of
pain-related areas of the brain, yet decreases were only statistically significant after�…
pain-related areas of the brain, yet decreases were only statistically significant after�…