Role of proprioceptive information in the temporal coordination between joints.

Role of proprioceptive information in the temporal coordination between joints. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Role of proprioceptive information in the temporal coordination between joints. Abstract Text:

H Devanne,B Maton,

Ten subjects made rapid, simultaneous movements of jaw (elevation or lowering) and right foot (ankle flexion or extension) in two experimental situations: (1) in response to an external signal (reaction-time situation), and (2) in a self-paced situation. We calculated the mean time intervals between the onsets of electromyographic (EMG) activity of agonist muscles (tibialis anterior or gastrocnemius lateralis compared with masseter or digastricus pars anterior) and those between the onsets of movement acceleration at each joint. Despite the fact that subjects reported simultaneous jaw-foot movements, there was always a short time interval between the two movements as between the agonist EMG activities. When the subjects were asked to perform a jaw elevation movement simultaneously with an ankle movement (flexion or extension), the sign of the time interval was dependent on the situation of movement initiation. In the reaction-time situation, the jaw motor activity preceded that of the ankle, whereas the reverse temporal order was observed in the self-paced situation. This is consistent with a previous hypothesis suggesting that the simultaneity of two motor actions is centrally established through two separate central processes: reactive or predictive. When subjects tried to perform simultaneous jaw lowering and foot flexion or extension movements, the strict temporal order observed when considering jaw elevation and ankle movements disappeared. The jaw motor activity generally preceded that of ankle in the reactive situation, but, depending on the subjects, it preceded or followed the ankle motor activity during self-paced movements. It is likely that the specific spindle supply of jaw muscles accounts for these results. Indeed, the jaw depressor muscles, in contrast to the elevators, lack muscle spindles. Our results suggest that the kinesthetic inputs used by the upper central nervous system to synchronize two rapid voluntary movements are mainly those from spindles located in the muscles that accelerate the movement, suggesting a strong alpha-gamma linkage.

Role of proprioceptive information in the temporal coordination between joints. Publishing Authors By Initials

H Devanne,B Maton,

For similar reaction time research abstracts see: reaction time research

PUBMED ID PMID:

MEDLINE DATE:

Role of proprioceptive information in the temporal coordination between joints. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Experimental brain research. Experimentelle Hirnfo

VOLUME: 119

Page Numbers: 58-64

Journal Abbreviation:

ISSN: 0014-4819

DAY: 15

MONTH: Mar

YEAR: 1998

Role of proprioceptive information in the temporal coordination between joints. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 43312

Role of proprioceptive information in the temporal coordination between joints. Keywords Mesh Terms:

KEYWORDS: Reaction Time

MESH TERMS: physiology

Chemical & Substance for Abstract: Role of proprioceptive information in the temporal coordination between joints. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Role of proprioceptive information in the temporal coordination between joints.

AFFILIATION: Laboratoire de Physiologie Neuromusculaire, Université du Littoral, Calais, France. devanne@univ-littoral.fr

Country: GERMANY

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Exp Brain Res

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Role of proprioceptive information in the temporal coordination between joints Related Publications

• Adaptation of the precentral cortical command to elbow muscle fatigue.
• Anticipatory postural adjustments are associated with single vertical jump and their timing is predictive of jump amplitude.
• Comparison between surface and intramuscular EMG's in voluntary movements.
• Empowering community settings: agents of individual development, community betterment, and positive social change.
• Preparation of pure iron-59 of high specific activity.
• Responses of motor cortical cells to short trains of vibration.
• Role of proprioceptive information in the temporal coordination between joints.
• The stability of synergy in agonists during the execution of a simple voluntary movement.