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Τετάρτη 16 Αυγούστου 2017

P244 Normal cortical modulation of subcortical structures is altered in cervical dystonia

Blink reflex (BR) is obtained after different kinds of stimuli, such as trigeminal supraorbial branch stimulation (trigeminal BR, TBR) or median nerve stimulation at wrist (hand-evoked BR, HBR). Inhibition of TBR occurs when a preceding subthreshold stimulus is applied before trigeminal stimulation (prepulse inhibition, PPI). In healthy subjects, magnitude of HBR is increased and magnitude of PPI of TBR is decreased if the stimulated hand is positioned in the peripersonal space (PPS). Here, we aimed to investigate the changes of HBR and PPI of the TBR in PPS to understand alterations of cortical modulations of subcortical structures in cervical dystonia.

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