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- W2037314052 endingPage "296" @default.
- W2037314052 startingPage "217" @default.
- W2037314052 abstract "The posterior insula (PI) has been proposed as a potential neurostimulation target for neuropathic pain relief as it represents a key-structure in pain processing. However, currently available data remain inconclusive as to efficient stimulation parameters.As frequency was shown to be the most correlated parameter to pain relief, this study aims to evaluate the potential modulatory effects of low frequency (LF-IS, 50 Hz) and high-frequency (HF-IS, 150 Hz) posterior insular stimulation on the activity of somatosensory thalamic nuclei.Epidural bipolar electrodes were placed over the PI of healthy adult cats, and extracellular single-unit activities of nociceptive (NS), nonnociceptive (NN), and wide dynamic range (WDR) thalamic cells were recorded within the ventral posterolateral nucleus and the medial division of the thalamic posterior complex. Mean discharge frequency and burst firing mode were analyzed before and after either LF-IS or HF-IS.LF-IS showed a significant thalamic modulatory effects increasing the firing rate of NN cells (p ≤ 0.03) and decreasing the burst firing of NS cells (p ≤ 0.03), independently of the thalamic nucleus. Conversely, HF-IS did not induce any change in firing properties of the three recorded cell types.These data indicate that 50 Hz IS could be a better candidate to control neuropathic pain." @default.
- W2037314052 created "2016-06-24" @default.
- W2037314052 creator A5005390808 @default.
- W2037314052 creator A5019812073 @default.
- W2037314052 creator A5036455361 @default.
- W2037314052 creator A5050627546 @default.
- W2037314052 creator A5072010374 @default.
- W2037314052 date "1985-08-01" @default.
- W2037314052 modified "2023-09-27" @default.
- W2037314052 title "Diencephalic mechanisms of pain sensation" @default.
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