It was hypothesized that the relative superiority of the non-dominant hand movements during late evening could arise from a more pronounced homeostatic deactivation of the left hemisphere. We tested such hypothesis collecting motor activity before and after prolonged wakefulness. Fifty-one right-handed subjects wore actigraphs on both left and right wrist for three consecutive days (baseline–sleep deprivation–sleep recovery). We replicated higher motor activity in left hand respect to the right hand at 22:00 and 23:00 h, but only in baseline condition. The results provide the evidence that circadian motor asymmetries do not seem to express homeostatic processes.

Circadian motor asymmetries before and after prolonged wakefulness in humans

NATALE, VINCENZO;MARTONI, MONICA;ESPOSITO, MARIA JOSE';FABBRI, MARCO;TONETTI, LORENZO
2007

Abstract

It was hypothesized that the relative superiority of the non-dominant hand movements during late evening could arise from a more pronounced homeostatic deactivation of the left hemisphere. We tested such hypothesis collecting motor activity before and after prolonged wakefulness. Fifty-one right-handed subjects wore actigraphs on both left and right wrist for three consecutive days (baseline–sleep deprivation–sleep recovery). We replicated higher motor activity in left hand respect to the right hand at 22:00 and 23:00 h, but only in baseline condition. The results provide the evidence that circadian motor asymmetries do not seem to express homeostatic processes.
NEUROSCIENCE LETTERS
V. Natale; M. Martoni; M.J. Esposito; M. Fabbri; L. Tonetti
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/46304
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