Title |
Association of anxiety with intracortical inhibition and descending pain modulation in chronic myofascial pain syndrome
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Published in |
BMC Neuroscience, March 2014
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DOI | 10.1186/1471-2202-15-42 |
Pubmed ID | |
Authors |
Liliane Pinto Vidor, Iraci LS Torres, Liciane Fernandes Medeiros, Jairo Alberto Dussán-Sarria, Letizzia Dall’Agnol, Alicia Deitos, Aline Brietzke, Gabriela Laste, Joanna R Rozisky, Felipe Fregni, Wolnei Caumo |
Abstract |
This study aimed to answer three questions related to chronic myofascial pain syndrome (MPS): 1) Is the motor cortex excitability, as assessed by transcranial magnetic stimulation parameters (TMS), related to state-trait anxiety? 2) Does anxiety modulate corticospinal excitability changes after evoked pain by Quantitative Sensory Testing (QST)? 3) Does the state-trait anxiety predict the response to pain evoked by QST if simultaneously receiving a heterotopic stimulus [Conditional Pain Modulation (CPM)]? We included females with chronic MPS (n = 47) and healthy controls (n = 11), aged 19 to 65 years. Motor cortex excitability was assessed by TMS, and anxiety was assessed based on the State-Trait Anxiety Inventory. The disability related to pain (DRP) was assessed by the Profile of Chronic Pain scale for the Brazilian population (B:PCP:S), and the psychophysical pain measurements were measured by the QST and CPM. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Spain | 1 | 50% |
Unknown | 1 | 50% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 50% |
Practitioners (doctors, other healthcare professionals) | 1 | 50% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Brazil | 3 | 2% |
Australia | 1 | <1% |
Unknown | 161 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Master | 34 | 21% |
Student > Bachelor | 27 | 16% |
Researcher | 17 | 10% |
Student > Ph. D. Student | 14 | 8% |
Student > Doctoral Student | 12 | 7% |
Other | 29 | 18% |
Unknown | 32 | 19% |
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Nursing and Health Professions | 20 | 12% |
Neuroscience | 20 | 12% |
Psychology | 11 | 7% |
Agricultural and Biological Sciences | 9 | 5% |
Other | 18 | 11% |
Unknown | 41 | 25% |