title: Manual asymmetry for temporal and spatial parameters in sensorimotor synchronization.
abstract: Previous studies suggest a right hemisphere advantage for temporal processing and a left hemisphere advantage for planning of motor actions. In the present study, we studied sensorimotor synchronization of hand reaching movements with an auditory rhythm. Blindfolded right-handed participants were asked to synchronize left and right hand movements to an auditory rhythm (40 vs. 60 vs. 80 bpm) and simultaneously reproduce the amplitude of a previously shown movement. Constant and variable asynchronies and movement amplitude errors were measured. The results showed that (a) constant asynchrony was lesser with the left hand than the right hand and (b) constant and variable amplitude errors were lesser with the right hand than the left hand. We suggest that when hand reaching movements are synchronized with an auditory rhythm, the left hand/right hemisphere system appears relatively specialized in temporally adhering to the rhythm and the right hand/left hemisphere system in performing spatially accurate movements.
authors.affiliation: Dipartimento di Medicina Sperimentale, Seconda Università di Napoli, Via Costantinopoli 16, 80138, Napoli, Italy. sergio.chieffi@unina2.it.
authors.forename: Sergio
authors.initials: S
authors.lastname: Chieffi
authors.affiliation: Dipartimento di Medicina Sperimentale, Seconda Università di Napoli, Via Costantinopoli 16, 80138, Napoli, Italy.
authors.forename: Ines
authors.initials: I
authors.lastname: Villano
authors.affiliation: Neurological and Stroke Unit, CTO Hospital, AORN "Ospedali dei Colli", Naples, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Iavarone
authors.affiliation: Dipartimento di Medicina Sperimentale, Seconda Università di Napoli, Via Costantinopoli 16, 80138, Napoli, Italy.
authors.forename: Antonietta
authors.initials: A
authors.lastname: Messina
authors.affiliation: Dipartimento di Medicina Sperimentale, Seconda Università di Napoli, Via Costantinopoli 16, 80138, Napoli, Italy.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Monda
authors.affiliation: Department of Medicine and Surgery, University of Salerno, Baronissi, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Viggiano
authors.affiliation: Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Messina
authors.affiliation: Dipartimento di Medicina Sperimentale, Seconda Università di Napoli, Via Costantinopoli 16, 80138, Napoli, Italy.
authors.forename: Marcellino
authors.initials: M
authors.lastname: Monda
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D000704:Analysis of Variance; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006225:Hand / Q000294:innervation*; D006801:Humans; D008297:Male; D009068:Movement / Q000502:physiology*; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000502:physiology*; D055815:Young Adult
keywords: Asynchrony; Hemispheric asymmetry; Manual asymmetry; Movement memory; Proprioception; Sensorimotor synchronization