![]() These findings suggest that the cerebellum plays a role in merely perceptive aspects of temporal information processing. rTMS of the left cerebellar hemisphere did not determine significant changes in the subjects' performance with respect to the baseline. ![]() The right cerebellar rTMS worsened temporal discrimination of cutaneous somatosensory electrical stimuli on the ipsilateral hand. The task was performed in baseline and after 1 Hz rTMS over the right and left cerebellar hemisphere. The cerebellum is a portion of the central nervous system (CNS) that is only concerned with the control of movement. Subjects were instructed to compare time intervals of rp and tp and to estimate whether the tp interval was shorter than, equal to, or longer than that of rp. Two pairs of electrical stimuli: the first considered the reference pair (rp) with a standard interval of 400 ms and the second, the test pair (tp), with variable intervals ranging from 300 to 500 ms, were applied by surface electrodes on the right forearm. The cerebellum is a small structure of the hindbrain, weighing approximately from 136 to 169 gand representing about the 11 of brain weight in adult humans and 56 in neonates (Solov’ev, 2016). However, it is unknown whether, and how, these structures are engaged during the observation of actions performed by effectors different from the hand. Ten healthy subjects underwent a time-perception task with somatosensory stimuli. Humans and monkey studies showed that specific sectors of cerebellum and basal ganglia activate not only during execution but also during observation of hand actions. The requirements for precise timing, and presumably the cerebellums capability for. The aim of this study was to investigate the role of the cerebellum in a temporal-discrimination task without movement production in healthy subjects. Three competing hypotheses were examined: That the cerebellum functions as 1) an independent milliseconds timer 2) part of an extended timing system where it. The multiple-timer hypothesis suggests an alternative account of neuroimaging results implicating the cerebellum in higher cognitive processes. Ten healthy subjects underwent a time-perception task with somatosensory stimuli. All of these provide a mechanism that can operate as an interval timer. The aim of this study was to investigate the role of the cerebellum in a temporal-discrimination task without movement production in healthy subjects. attributed to the clock component for those patients with damage in the lateral, hemispheric regions of the cerebellum.
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