کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3046469 1185042 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The influence of psychological state on the masseteric exteroceptive suppression reflex and somatosensory function
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی عصب شناسی
پیش نمایش صفحه اول مقاله
The influence of psychological state on the masseteric exteroceptive suppression reflex and somatosensory function
چکیده انگلیسی

ObjectiveThis study examined the somatosensory function in the trigeminal region and quantitative measures of the exteroceptive suppression (ES) period in the masseteric EMG, in relation to a psychological evaluation.MethodsThe ES in the surface EMG was recorded from the left masseter muscle in 12 men and 12 women. The stimulation intensity at which the ES appeared first and the lowest intensity at which the subjects reported it to be painful were defined as the electrical reflex threshold and electrical pain threshold, respectively. Three experimental sessions were scheduled. The state and trait anxiety inventory was used to evaluate the psychological status.ResultsThe electrical reflex threshold significantly decreased (p < 0.01), and the electrical pain threshold significantly increased (p < 0.01) over the sessions in line with the effect on the state anxiety inventory (p < 0.05).ConclusionsThe present results illustrate that reflex parameters and electrical pain thresholds are associated with state anxiety. Possibly, habituation or decreased fear from the experimental set-up may play a role.SignificanceThis is important when electrophysiology or quantitative sensory testing is used to assess trigeminal nociception, e.g., in orofacial pain conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Clinical Neurophysiology - Volume 119, Issue 10, October 2008, Pages 2321–2328
نویسندگان
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