Quantitative analysis of blink reflexes in patients with hemiplegic disordersAnalyse quantitative des réflexes de clignement chez des hémiplégiques☆
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Cited by (34)
The cutaneous silent period in motor neuron disease
2021, Clinical NeurophysiologyCitation Excerpt :However, one study reported contradictory results showing a normal onset latency and longer duration in ALS patients (Gutierrez et al, 2020). These results reflect a probable influence of the descending corticospinal tract in the oligosynaptic spinal circuit involved in the CSP, similarly to that observed in the brainstem blink-reflex (Dengler et al., 1982). Mirror movements are commonly observed in ALS-MND, a phenomenon attributed to disturbed transcallosal inhibition secondary to degeneration of interhemispheric fibers (Wittstock et al., 2007), as supported by the presence of ipsilateral motor responses or ipsilateral silent period in hand muscles on TMS studies (Krampfl et al., 2004; Wittstock et al., 2011; Wittstock et al., 2020) and by imaging findings (Filippini et al., 2010).
Brainstem reflex excitability after high-frequency repetitive transcranial magnetic stimulation in healthy and spinal cord injury subjects
2019, Brain Research BulletinCitation Excerpt :Basal ganglia could modulate the brainstem reflex blink circuits via descending cortical projections or alternatively, with input to the superior colliculus via tecto reticular projections (Basso et al., 1996a,b). The existence of a close association between BR projection-facilitating fibers and wide areas of the cortex was suggested (Dengler et al., 1982; Kimura et al., 1985; Catz et al., 1988). The basal ganglia could modify reflex blink excitability through at least two routes.
Effect of slow rTMS of motor cortex on the excitability of the Blink Reflex: A study in healthy humans
2009, Clinical NeurophysiologyCitation Excerpt :A strong influence comes from the central dopamine level (Penders and Delwaide, 1971; Esteban and Giménez-Roldán, 1975). Moreover, anatomo-physiological and clinical studies have demonstrated that cortex is responsible for a crossed facilitation on the brainstem reticular networks of BR (Kuypers, 1958; Kimura, 1974; Fisher et al., 1979; Dengler et al., 1982; Catz et al., 1988; Berardelli et al., 1983; Kimura et al., 1985), but there is no study, to our knowledge, in which rTMS has been used to investigate the cortical modulation of the excitability of these brainstem systems. For instance, the suppression of cortical excitability provoked by slow rTMS could lead to a reduction of this cortical drive and consequently of the excitability of BR, thus reproducing, in a transient way, the effect of hemispheric lesions (virtual lesion mode).
Elektrophysiology of brainstem reflexes
2007, Neurophysiologie-Labor
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Supported by Deutsche Forschungsgemeinschaft (De 227/2-1).
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Supported by Deutscher Akademischer Austauschdienst.
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Present address: Institute of Physiology, Bulgarian Academy of Sciences, Acad. G. Bontchev St. B 1. I, Sofia 1113, Bulgaria.