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5.11 - Ascending Pathways: Anatomy and Physiology
2020, The Senses: A Comprehensive Reference: Volume 1-7, Second EditionPain System
2015, The Rat Nervous System: Fourth EditionFunction of mGlu1 receptors in the modulation of nociceptive processing in the thalamus
2014, NeuropharmacologyCitation Excerpt :Neurones were identified on the basis of their stereotaxic location (AP +5.0 mm from lambda, Lateral 2.9 mm from midline, Depth 4.6–5.2 mm from surface) and their responses to somatosensory (nociceptive and non-nociceptive) stimuli, as described previously (Guilbaud et al., 1980; Peschanski et al., 1980, 1983; Salt and Binns, 2000). Nociceptive responses were evoked by immersion of part of either the contralateral hindpaw or the tail in water of 52C for 20 s. Responses to such stimuli were typically increases in action potential firing during the course of the stimulus and outlasting the stimulus by up to 2 min, as described previously (Peschanski et al., 1980). Similar response profiles were observed irrespective of the recording electrode type or the type of craniotomy preparation.
Thalamus and pain
2013, Acta Anaesthesiologica TaiwanicaCitation Excerpt :The percentage of heat-responsive neurons under anesthesia is 20% in the raccoon VP55 and 32% in cat PO.56 Approximately 70–75% of mechanical nociceptive neurons are heat-responsive in rats57 and monkeys.58 Most lateral thalamic neurons can code temperatures from 43°C to 53°C,55–57 but a smaller part of these VP neurons have shown plateau responses from 50°C to 53°C.57,58
Ascending Pathways: Anatomy and Physiology
2008, The Senses: A Comprehensive ReferenceInhibition of pain behavior by GABA<inf>B</inf> receptors in the thalamic ventrobasal complex: Effect on normal rats subjected to the formalin test of nociception
2006, Brain ResearchCitation Excerpt :The VB receives projections from the spinothalamic tract, which neurons respond to noxious input exclusively (nociceptive specific neurons) or not (nociceptive non-specific or wide dynamic range receptive neurons; Guilbaud et al., 1994). Various studies demonstrated that numerous neurons in the VB are activated by noxious somatic stimuli and suggested that these nuclei participate in the sensory-discriminative aspect of pain (Kenshalo et al., 1980; Peschanki et al., 1980; Chung et al., 1986; Guilbaud and Kayser, 1987; Guilbaud et al., 1994). Additionally, VB neurons from animals with a chronic inflammatory or neuropathic pain condition, display significantly enhanced responses to mechanical and thermal stimulation (Guilbaud and Kayser, 1987; Guilbaud, 1991; Guilbaud et al., 1990, 1992, 1994).
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