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Placebo in emotional processing—induced expectations of anxiety relief activate a generalized modulatory network
Open accessAbstract
Placebo analgesia and reward processing share several features. For instance, expectations have a strong influence on the subsequent emotional experience of both. Recent imaging data indicate similarities in the underlying neuronal network. We hypothesized that placebo analgesia is a special case of reward processing and that placebo treatment could modulate emotional perception in the same way as does pain perception. The behavioral part of this study indicates that placebo treatment has an effect on how subjects perceive unpleasant pictures. Furthermore, event-related fMRI demonstrated that the same modulatory network, including the rostral anterior cingulate cortex and the lateral orbitofrontal cortex, is involved in both emotional placebo and placebo analgesia. These effects were correlated with the reported placebo effect and were predicted by the amount of treatment expectation induced on a previous day. Thus, the placebo effect may be considered to be a general process of modulation induced by the subjects' expectations.
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“Importantly, this activation remained when controlling for non-emotional attentional aspects of treatment either through interaction or correlation analyses (Petrovic et al., 2002, 2005).”
From Top-Down Dysregulation—From ADHD to Emotional Instability (2016) · cites this paper as Petrovic et al., 2005
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“The pgACC and rdACC are together associated with diverse emotional processes (T. Wager et al., 2008), such as in the context-driven modulation of emotion and pain (Petrovic et al., 2005; Porro, 2003; Wager, Scott, & Zubieta, 2007)(Faymonville, submitted).”
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“A similar functional coupling between rostral ACC and amygdala may also be involved in pain regulation and the placebo effect (Petrovic et al., 2004; Petrovic et al., 2005).”
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“Several studies show placebo-induced increases during pain (Petrovic et al., 2002; Bingel et al., 2006; Eippert et al., 2009a) and emotional stimulus processing (Petrovic et al., 2005), and relative increases with low pain expectancy that mediate reduced pain report (Atlas et al., 2010).”
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Nonconscious activation of placebo and nocebo pain responses
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Self-citationHow the number of learning trials affects placebo and nocebo responses
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“Conditioned responses are present across different systems such as somatosensorial perception [5], motor system [6,15,32], hormone secretion [7], immune responses [20,21] and emotion [31], whereby druglike effects have been observed when active treatments are replaced with inert treatments (e.”
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Neurobiological Mechanisms of Placebo Responses
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“BOLD responses in the NAC have also been shown to be proportional to expectations of anxiety relief in a study in which subjects were preconditioned with a benzodiazepine anxiolytic and presented with negative affective stimuli (Petrovic et al. 2005).”
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“Petrovic et al. (2005) recently conducted an fMRI study to test the hypothesis that placebo treatment can modulate emotional perception.”
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“The emphasis is particularly on recent studies illuminating mechanisms underlying individual differences in placebo responsiveness.”
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“Additionally, we found that healthy controls displayed higher connectivity between the thalamus and the OBFC, a cortical region that plays an important role in endogenous modulation of pain and emotions [43].”
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Uncertainty during anticipation modulates neural responses to aversion in human insula and amygdala
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“responses to subsequent aversive pictures are consistent with prior reports implicating the ACC in anticipation-driven modulatory functions (Ploghaus et al. 2003; Petrovic et al. 2005; Phan et al. 2005; Sarinopoulos et al. 2006) and top-down”
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Oken, B. S. (2008) · Brain · doi:10.1093/brain/awn116 · Cited by 237
“…et al., 2004; Koyama et al., 2005; Zubieta et al., 2005; Bingel et al., 2006; Kong et al., 2006; Wager et al., 2004, 2007), placebo anxiety relief (Petrovic et al., 2005), mood improvement in the placebo arm of an antidepressant trial (Mayberg et al., 2002) and improvements in mood associated…”
BackgroundBerman, S. M., Naliboff, B. D., Suyenobu, B. Y., Labus, J. S., Stains, J., Ohning, G., Kilpatrick, L. A., Bueller, J. A., Ruby, K., Jarcho, J. M., et al. (2008) · Journal of Neuroscience · doi:10.1523/jneurosci.2500-07.2008 · Cited by 235
“…PFC; cortical regions associated with antinociception through opiate-mediated placebo effects (Petrovic and Ingvar, 2002; Eisenberger et al., 2003; Lieberman et al., 2004; Petrovic et al., 2005; Bingel et al., 2006) and analgesic effects of perceived control over pain (Wiech et al., 2006).”
BackgroundMethodFunctional neuroanatomy of anxiety: a neural circuit perspective
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“Likewise, rostral ACC activation has also been observed during placebo anxiety reduction, a process in which control over an emotional stimulus (an aversive picture) is recruited to diminish the effect of the emotional stimulus (Petrovic et al. 2005).”
Furmark, T., Appel, L., Henningsson, S., Åhs, F., Faria, V., Linnman, C., Pissiota, A., Frans, Ö., Bani, M., Bettica, P., et al. (2008) · The Journal of Neuroscience · doi:10.1523/jneurosci.2534-08.2008 · Cited by 210
“The present results are consistent with the notion that placebo and active pharmacological agents act on the same, or at least overlapping, neural pathways (Mayberg et al., 2002; Petrovic et al., 2002, 2005; Benedetti et al., 2005; Faria et al., 2008).”
BackgroundMethodResultInfluentialRütgen, M., Seidel, E.-M., Silani, G., Riečanský, I., Hummer, A., Windischberger, C., Petrovic, P., & Lamm, C. (2015) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1511269112 · Cited by 208
Self-citationAmanzio, M., Benedetti, F., Porro, C. A., Palermo, S., & Cauda, F. (2013) · Human Brain Mapping · doi:10.1002/hbm.21471 · Cited by 202
“The results of both our analyses demonstrate how the areas engaged by PA in human experimental pain may be part of a general circuit underlying the voluntary regula tion of affective responses [Bechara et al., 1997; Damasio, 1996; Petrovic et al., 2005; Wager et al., 2011].”
Delusions and the role of beliefs in perceptual inference
Schmack, K., Gòmez-Carrillo de Castro, A., Rothkirch, M., Sekutowicz, M., Rössler, H., Haynes, J.-D., Heinz, A., Petrovic, P., & Sterzer, P. (2013) · The Journal of Neuroscience · doi:10.1523/jneurosci.1778-13.2013 · Cited by 198
“Placebo studies suggest that the OFC acts to generate and maintain experimentally induced beliefs that in turn modulate activity in sensory brain areas (Petrovic et al., 2002, 2005; Wager et al., 2004).”
BackgroundResultSelf-citationEllingsen, D., Leknes, S., Løseth, G. E., Wessberg, J., & Olausson, H. (2016) · Frontiers in Psychology · doi:10.3389/fpsyg.2015.01986 · Cited by 214
“When being touched by another individual, inferences about the identity, physical characteristics, and the intentions of the toucher, conveyed through visual and auditory stimuli, gives useful information about the importance of the touch and how preferable it is (Suvilehto et al., 2015).”
BackgroundBialosky, J. E., Bishop, M. D., & Cleland, J. A. (2010) · Physical Therapy · doi:10.2522/ptj.20090306 · Cited by 219
Psychological Risk Factors in Headache
Nicholson, R. A., Houle, T. T., Rhudy, J. L., & Norton, P. J. (2007) · Headache The Journal of Head and Face Pain · doi:10.1111/j.1526-4610.2006.00716.x · Cited by 203
A prefrontal non-opioid mechanism in placebo analgesia
Petrovic, P., Kalso, E., Petersson, K. M., Andersson, J., Fransson, P., & Ingvar, M. (2010) · Pain · doi:10.1016/j.pain.2010.03.011 · Cited by 182
“This study has previously shown a placebo-specific increase in rACC and several regions of lObfc/vlPFC in the subtraction analysis (see further [36]).”
InfluentialSelf-citationTop-Down Dysregulation—From ADHD to Emotional Instability
Petrovic, P., & Castellanos, F. X. (2016) · Frontiers in Behavioral Neuroscience · doi:10.3389/fnbeh.2016.00070 · Cited by 179
“, 2009; Wager and Atlas, 2015) and emotional placebo (Petrovic et al., 2005; Ellingsen et al., 2013) have also suggested the rACC is involved in top-down regulation of pain and emotion (see Figure 6A).”
BackgroundMethodInfluentialSelf-citationPlacebo and Nocebo Effects: An Introduction to Psychological and Biological Mechanisms
Kong, J., & Benedetti, F. (2014) · Handbook of experimental pharmacology · doi:10.1007/978-3-662-44519-8_1 · Cited by 34
Kaptchuk, T. J., Shaw, J. E., Kerr, C. E., Conboy, L. A., Kelley, J. M., Csordas, T. J., Lembo, A. J., & Jacobson, E. (2009) · Culture Medicine and Psychiatry · doi:10.1007/s11013-009-9141-7 · Cited by 165
Fusar-Poli, P., Allen, P., Bhattacharyya, S., Crippa, J. A., Mechelli, A., Borgwardt, S., Martin-Santos, R., Seal, M. L., O'Carrol, C., Atakan, Z., et al. (2010) · The International Journal of Neuropsychopharmacology · doi:10.1017/s1461145709990617 · Cited by 163
Li, C., Chen, M., Lin, W., Hong, C., Yang, B., Liu, R., Tu, P., & Su, T. (2016) · Human Brain Mapping · doi:10.1002/hbm.23085 · Cited by 152
“It has been reported that the most important brain change involved in the placebo effects of emotional processing is the functional decrease in the bilateral amygdala [Petrovic et al., 2005].”
BackgroundRutherford, B. R., Wager, T. D., & Roose, S. P. (2010) · Current Psychiatry Reviews · doi:10.2174/157340010790596571 · Cited by 144
“For example, Petrovic et al (2005) studied the effects of expectation on 15 healthy subjects' anxiety response to viewing unpleasant visual images.85 First, subjects were shown unpleasant and neutral pictures and asked to rate the perceived unpleasantness of the unpleasant pictures under three…”
BackgroundNeural bases of conditioned placebo analgesia
Lui, F., Colloca, L., Duzzi, D., Anchisi, D., Benedetti, F., & Porro, C. A. (2010) · Pain · doi:10.1016/j.pain.2010.09.021 · Cited by 149
“Evidence from different clinical and experimental models, such as Parkinson’s disease [4,12], hormone secretion [6], immune responses and emotion [33], suggests the crucial role of past experience for generating placebo effects.”
BackgroundPlacebo effects in laser-evoked pain potentials.
Wager, T., Matre, D., & Casey, K. (2006) · Brain, behavior, and immunity · doi:10.1016/j.bbi.2006.01.007 · Cited by 149
“…of the P2 is the anterior cingulate gyrus (Garcia-Larrea et al., 2003; Lenz et al., 1998), which plays a central role in both attention and pain, and also appears to be modulated by placebo in studies of pain and emotion (Petrovic et al., 2002, 2005; Wager et al., 2004; Zubieta et al., 2005).”
BackgroundThe top‐down influence of ergogenic placebos on muscle work and fatigue
Pollo, A., Carlino, E., & Benedetti, F. (2008) · European Journal of Neuroscience · doi:10.1111/j.1460-9568.2008.06344.x · Cited by 145
Brain activation during sight gags and language-dependent humor.
Watson, K., Matthews, B., & Allman, J. (2007) · Cerebral Cortex · doi:10.1093/cercor/bhj149 · Cited by 143
The relation of emotions to placebo responses
Flaten, M. A., Aslaksen, P. M., Lyby, P. S., & Bjørkedal, E. (2011) · Philosophical Transactions of the Royal Society B Biological Sciences · doi:10.1098/rstb.2010.0407 · Cited by 135
Neural control of the lower urinary and gastrointestinal tracts: Supraspinal CNS mechanisms
Drake, M. J., Fowler, C. J., GRIFFITHS, D. J., Mayer, E. A., Paton, J. F. R., & Birder, L. A. (2009) · Neurourology and Urodynamics · doi:10.1002/nau.20841 · Cited by 137
“Brainstem activation (involving the PAG and possibly the parabrachial nucleus) occurs in regions that receive input from corticolimbic networks, send projections to the rostroventral medulla and are part of a cortico-limbic-pontine pain modulation circuit.(126,127) Patients with IBS may also show abnormal activation o…”
BackgroundAtlas, L. Y., Wager, T. D., Dahl, K. P., & Smith, E. E. (2009) · Wiley eBooks · doi:10.1002/9780470478509.neubb002063 · Cited by 4
“Other studies have replicated and extended this result, showing that placebo treatments for negative emotion activate the same brain regions (Petrovic et al., 2005), and that endogenous opioids — neurochemicals linked to relaxation, euphoria, and pain relief — are released in these regions following placebo treatment…”
InfluentialA Neural Mechanism for Nonconscious Activation of Conditioned Placebo and Nocebo Responses
Jensen, K. B., Kaptchuk, T. J., Chen, X., Kirsch, I., Ingvar, M., Gollub, R. L., & Kong, J. (2014) · Cerebral Cortex · doi:10.1093/cercor/bhu275 · Cited by 152
“…that health-related behaviors can be triggered by cues that are not consciously perceived, not only for pain, but perhaps also for other medical problems with demonstrated placebo effects, like anxiety (Petrovic et al. 2005), asthma (Wechsler et al. 2011), and depression (Kirsch et al. 2008).”
BackgroundSelf-citationThe Cognitive Neuroscience of Placebo Effects: Concepts, Predictions, and Physiology
Geuter, S., Koban, L., & Wager, T. D. (2017) · Annual Review of Neuroscience · doi:10.1146/annurev-neuro-072116-031132 · Cited by 174
“Furthermore, vmPFC activity is important for placebo effects on anxiety (Petrovic et al. 2005) and reward learning in Parkinson’s disease (Schmidt et al. 2014).”
BackgroundWhat’s in a word? How instructions, suggestions, and social information change pain and emotion
Koban, L., Jepma, M., Geuter, S., & Wager, T. D. (2017) · Neuroscience & Biobehavioral Reviews · doi:10.1016/j.neubiorev.2017.02.014 · Cited by 166
“, 2002), negative (Koban et al., in revision; Meyer et al., 2015; Petrovic et al., 2005; Rütgen et al., 2015; Schienle et al., 2014), and positive emotions (Ellingsen et al.”
InfluentialThe placebo response: how words and rituals change the patient's brain
Benedetti, F., & Amanzio, M. (2011) · Patient Education and Counseling · doi:10.1016/j.pec.2011.04.034 · Cited by 132
The bidirectional relation between emotional reactivity and sleep: From disruption to recovery.
Altena, E., Micoulaud‐Franchi, J., Geoffroy, P. A., Sanz‐Arigita, E., Bioulac, S., & Philip, P. (2016) · Behavioral Neuroscience · doi:10.1037/bne0000128 · Cited by 152
Cortical and subcortical responses to high and low effective placebo treatments
Geuter, S., Eippert, F., Attar, C. H., & Büchel, C. (2012) · NeuroImage · doi:10.1016/j.neuroimage.2012.11.029 · Cited by 137
“Furthermore, enhanced activation of the rACC for a more effective placebo treatment is in line with its role in endogenous pain control (Bingel and Tracey, 2008) and affective regulation (Etkin et al., 2010; Petrovic et al., 2005).”
Petrović, P., Pleger, B., Seymour, B., Klöppel, S., Martino, B. D., Critchley, H., & Dolan, R. J. (2008) · Journal of Neuroscience · doi:10.1523/jneurosci.2807-08.2008 · Cited by 126
“, 2002) and emotion (Bush et al., 2000; Petrovic et al., 2005; Etkin et al., 2006) mediated, at least in part, via the endogenous opioid system (Petrovic et al.”
Self-citationBrain, Body and Culture: A Biocultural Theory of Religion
Geertz, A. W. (2010) · Method & Theory in the Study of Religion · doi:10.1163/157006810x531094 · Cited by 130
Prediction of placebo responses: a systematic review of the literature
Horing, B., Weimer, K., Muth, E. R., & Enck, P. (2014) · Frontiers in Psychology · doi:10.3389/fpsyg.2014.01079 · Cited by 144
Believing is seeing: expectations alter visual awareness
Sterzer, P., Frith, C., & Petrovic, P. (2008) · Current Biology · doi:10.1016/j.cub.2008.06.021 · Cited by 118
“Expectations have been shown to be powerful modulators of pain [1] and emotion [2] in placebo studies.”
BackgroundSelf-citationDistinct neural representations of placebo and nocebo effects
Freeman, S., Yu, R., Egorova, N., Chen, X., Kirsch, I., Claggett, B., Kaptchuk, T. J., Gollub, R. L., & Kong, J. (2015) · NeuroImage · doi:10.1016/j.neuroimage.2015.03.015 · Cited by 116
Placebo response to manual therapy: something out of nothing?
Bialosky, J. E., Bishop, M. D., George, S. Z., & Robinson, M. E. (2011) · Journal of Manual & Manipulative Therapy · doi:10.1179/2042618610y.0000000001 · Cited by 122
Placebo improves pleasure and pain through opposite modulation of sensory processing
Ellingsen, D., Wessberg, J., Eikemo, M., Liljencrantz, J., Endestad, T., Olausson, H., & Leknes, S. (2013) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1305050110 · Cited by 112
Gender Differences in Placebo Analgesia: Event-Related Potentials and Emotional Modulation
Aslaksen, P. M., Bystad, M. K., Vambheim, S. M., & Flaten, M. A. (2011) · Psychosomatic Medicine · doi:10.1097/psy.0b013e3182080d73 · Cited by 111
“Previous studies (2,18,29,42) have suggested that emotional modulation is one of the mechanisms in the placebo analgesic response, and imaging studies (18,43) have supported this view by showing that placebo administration modulates cortical activity in cerebral structures that are involved in emotional regulation.”
BackgroundElsenbruch, S., Kotsis, V., Benson, S., Rosenberger, C., Reidick, D., Schedlowski, M., Bingel, U., Theysohn, N., Forsting, M., & Gizewski, E. R. (2011) · Pain · doi:10.1016/j.pain.2011.10.036 · Cited by 101
“Interestingly, the magnitude of change in pain ratings was proportional to the degree of certainty regarding the probability of receiving a potent analgesic drug in line with previous studies using somatic pain stimuli in healthy subjects [27] and in patients with postoperative pain [29].”
ResultAslaksen, P. M., & Flaten, M. A. (2008) · Psychosomatic Medicine · doi:10.1097/psy.0b013e31818105ed · Cited by 103
Breaking down the Barriers: fMRI Applications in Pain, Analgesia and Analgesics
Borsook, D., & Becerra, L. R. (2006) · Molecular Pain · doi:10.1186/1744-8069-2-30 · Cited by 108
“…that (1) placebo analgesia decreased activation in thalamus, insula aCG and (2) anticipation increased activation in prefrontal cortex Placebo analgesia ma affective response to Placebo in Emotional Processing Petrovic et al., 2005 [84] Use of pleasant and unpleasant pictures compared with pain.”
BackgroundGreenberg, J., Vail, K., & Pyszczynski, T. (2014) · Advances in Motivation Science · doi:10.1016/bs.adms.2014.08.003 · Cited by 109
“…detection of threatening stimuli (Phan, Wager, Taylor, Liberzon, 2002), and the ACC is involved in the anticipation of negative events and anxiety (Petrovic et al., 2005; Simpson, Drevets, Snyder, Gusnard, & Raichle, 2001), which is consistent with the idea that death-related stimuli activate…”
ResultPeciña, M., Sikora, M., Avery, E. T., Heffernan, J., Peciña, S., Mickey, B. J., & Zubieta, J.-K. (2017) · European Neuropsychopharmacology · doi:10.1016/j.euroneuro.2017.08.427 · Cited by 125
“Broadly, expectations are fundamental in all emotional processes, and allow an individual to interact with an upcoming emotional or motivational situation before it actually occurs (Petrovic et al., 2005).”
Placebo manipulations reduce hyperalgesia in neuropathic pain
Petersen, G. L., Finnerup, N. B., Nørskov, K. N., Grosen, K., Pilegaard, H. K., Benedetti, F., Price, D. D., Jensen, T. S., & Vase, L. (2012) · Pain · doi:10.1016/j.pain.2012.03.011 · Cited by 108
Quirin, M., Loktyushin, A., Arndt, J., Küstermann, E., Lo, Y.-Y., Kuhl, J., & Eggert, L. D. (2012) · Social Cognitive and Affective Neuroscience · doi:10.1093/scan/nsq106 · Cited by 106
“The protocol described below was reviewed and approved by the local ethics committee.”
BackgroundMethodPassamonti, L., Rowe, J. B., Ewbank, M., Hampshire, A., Keane, J., & Calder, A. J. (2008) · NeuroImage · doi:10.1016/j.neuroimage.2008.07.045 · Cited by 95
“[PubMed: 15219588] Petrovic et al, 2005.”
Brain mechanisms of social touch-induced analgesia in females
López‐Solà, M., Geuter, S., Koban, L., Coan, J. A., & Wager, T. D. (2019) · Pain · doi:10.1097/j.pain.0000000000001599 · Cited by 110
Cerebral interactions of pain and reward and their relevance for chronic pain
Becker, S., Gandhi, W., & Schweinhardt, P. (2012) · Neuroscience Letters · doi:10.1016/j.neulet.2012.03.013 · Cited by 103
Volkow, N., Wang, G.-J., Ma, Y.-M., Fowler, J., Wong, C. T., Jayne, M., Telang, F., & Swanson, J. (2006) · NeuroImage · doi:10.1016/j.neuroimage.2006.04.192 · Cited by 100
Placebo analgesia: findings from brain imaging studies and emerging hypotheses
Kong, J., Kaptchuk, T. J., Polich, G., Kirsch, I., & Gollub, R. L. (2007) · Reviews in the Neurosciences · doi:10.1515/revneuro.2007.18.3-4.173 · Cited by 97
Molecular mechanisms of placebo responses in humans
Peciña, M., & Zubieta, J.-K. (2014) · Molecular Psychiatry · doi:10.1038/mp.2014.164 · Cited by 103
Sharing pain and relief: neural correlates of physicians during treatment of patients
Jensen, K. B., Petrović, P., Kerr, C. E., Kirsch, I., Raicek, J., Cheetham, A., Spaeth, R. B., Cook, A., Gollub, R. L., Kong, J., et al. (2013) · Molecular Psychiatry · doi:10.1038/mp.2012.195 · Cited by 103
Self-citationLee, H., Hsieh, J., Lu, C., Yeh, T., Tu, C., Cheng, C.-M., Niddam, D. M., Lin, H., Lee, F., & Chang, F.-Y. (2012) · Pain · doi:10.1016/j.pain.2012.03.018 · Cited by 93
Price, D. D., Craggs, J. G., Zhou, Q., Verne, G. N., Perlstein, W. M., & Robinson, M. E. (2009) · NeuroImage · doi:10.1016/j.neuroimage.2009.04.028 · Cited by 93
Why sickness hurts: A central mechanism for pain induced by peripheral inflammation.
Karshikoff, B., Jensen, K., Kosek, E., Kalpouzos, G., Soop, A., Ingvar, M., Höglund, C. O., Lekander, M., & Axelsson, J. (2016) · Brain, behavior, and immunity · doi:10.1016/j.bbi.2016.04.001 · Cited by 93
“Discussion 2 The main finding of the present study is that systemic inflammation modulates the pain 3 system by decreasing endogenous pain inhibition, reflected in attenuation of the vlPFC and 4 rACC activity and increased pressure pain sensitivity in the LPS-treated group.”
InfluentialSelf-citation
Metadata
- Authors
- Petrovic, P., Dietrich, T., Fransson, P., Andersson, J., Carlsson, K., & Ingvar, M.
- Affiliations
- Karolinska University Hospital (SE)
- Venue
- Neuron
- Publisher
- Elsevier BV
- Published
- 2005-06
- Volume
- 46
- Issue
- 6
- Pages
- 957-969
- ISSN
- 0896-6273 (ISSN-L)
- OpenAlex
- W1979589689
- Cited by
- 437
- References
- 0
- Citations by year
- 2026: 6 · 2025: 15 · 2024: 8 · 2023: 9 · 2022: 19 · 2021: 19 · 2020: 18 · 2019: 15 · 2018: 19 · 2017: 16 · 2016: 24 · 2015: 25 · 2014: 28 · 2013: 34 · 2012: 25
- FWCI
- 12.74
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Neuron (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Petrus och Augusta Hedlunds Stiftelse
- Sveriges Läkarförbund
- Medical Research Council
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Pain Management and Placebo Effect
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Keywords
- placebo effect, emotional processing, anxiety reduction, reward processing, placebo analgesia, treatment expectations, unpleasant pictures, rostral anterior cingulate cortex, lateral orbitofrontal cortex, pain perception
- MeSH terms
- Adult, Anxiety, Benzodiazepines, Brain Mapping, Emotions, Female, Flumazenil, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Nerve Net, Oxygen, Photic Stimulation, Placebos, Time Factors, Anti-Anxiety Agents, Placebo Effect
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