title: Integration of auditory and kinesthetic information in motion: alterations in Parkinson's disease.
abstract: The main aim in this work was to study the interaction between auditory and kinesthetic stimuli and its influence on motion control. The study was performed on healthy subjects and patients with Parkinson's disease (PD). Thirty-five right-handed volunteers (young, PD, and age-matched healthy participants, and PD-patients) were studied with three different motor tasks (slow cyclic movements, fast cyclic movements, and slow continuous movements) and under the action of kinesthetic stimuli and sounds at different beat rates. The action of kinesthesia was evaluated by comparing real movements with virtual movements (movements imaged but not executed). The fast cyclic task was accelerated by kinesthetic but not by auditory stimuli. The slow cyclic task changed with the beat rate of sounds but not with kinesthetic stimuli. The slow continuous task showed an integrated response to both sensorial modalities. These data show that the influence of the multisensory integration on motion changes with the motor task and that some motor patterns are modulated by the simultaneous action of auditory and kinesthetic information, a cross-modal integration that was different in PD-patients.
authors.affiliation: Rehabilitation Service, Department of Physical Medicine and Pharmacology, Faculty of Medicine, University of La Laguna, Canary Islands, Spain. mrdiaz@ull.es
authors.forename: Magdalena
authors.initials: M
authors.lastname: Sabaté
authors.forename: Catalina
authors.initials: C
authors.lastname: Llanos
authors.forename: Manuel
authors.initials: M
authors.lastname: Rodríguez
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods; D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D000978:Antiparkinson Agents / Q000494:pharmacology / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007699:Kinesthesis; D008297:Male; D008875:Middle Aged; D009038:Motion; D009068:Movement / Q000187:drug effects / Q000502:physiology*; D010300:Parkinson Disease / Q000188:drug therapy / Q000503:physiopathology*; D011597:Psychomotor Performance / Q000187:drug effects / Q000502:physiology*; D013997:Time Factors; D014584:User-Computer Interface
chemical_list: D000978:Antiparkinson Agents