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Difference between revisions of "Encrypted code: Hyperexcitability of the trigeminal system"
Encrypted code: Hyperexcitability of the trigeminal system (view source)
Revision as of 11:18, 12 May 2024
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The subject was asked to clench his teeth to produce maximal EMG activity and to maintain the contraction for at least 3 s, with the help of visual and audio feedback. After 60 seconds of rest, the subject repeated the contraction 10 times. The EMG signal was recorded in directly rectified and averaged mode. The placement of the recording electrodes was the same as that used to record the jaw jerk and the preamplifier parameters are set to a time window width of 500ms, 200mV per division and a filter bandwidth of 50-1kHz. The latencies and durations of the SPs and the AI (Figure 1) were calculated as follows: | The subject was asked to clench his teeth to produce maximal EMG activity and to maintain the contraction for at least 3 s, with the help of visual and audio feedback. After 60 seconds of rest, the subject repeated the contraction 10 times. The EMG signal was recorded in directly rectified and averaged mode. The placement of the recording electrodes was the same as that used to record the jaw jerk and the preamplifier parameters are set to a time window width of 500ms, 200mV per division and a filter bandwidth of 50-1kHz. The latencies and durations of the SPs and the AI (Figure 1) were calculated as follows: | ||
[[File:Recovery cycle.jpeg|center|thumb|''' | [[File:Recovery cycle.jpeg|center|thumb|'''Figure 1:''' Masseter Inhibitory Reflex (rcMIR) recovery cycle|500x500px]] | ||
<blockquote> | <blockquote> | ||
*To simplify the examination, the rcMIR was evoked by electrically stimulating the left side only. The EMG responses correspond to the EMG tracings of the right masseter (Ch1) and left masseter (Ch2). Thus, on the traces, each marker indicates the channel number, while the letters indicate the sequences of latencies. | *To simplify the examination, the rcMIR was evoked by electrically stimulating the left side only. The EMG responses correspond to the EMG tracings of the right masseter (Ch1) and left masseter (Ch2). Thus, on the traces, each marker indicates the channel number, while the letters indicate the sequences of latencies. | ||