Table 2

Associations between measures of transcallosal inhibition and age-related variations in unimanual performance of the right hand and left hand
Direction of motor transcallosal inhibitiona Manual performance
Dexterity (GPT) Grip strength (Pinch dynamometer)
Left to right Right Hand
    LTI r= 0.59*** r= −0.37
    TCT r= 0.50** r= −0.46*
    iSP area r= −0.46* r= 0.38*
Right to left Left Hand
    LTI r= 0.50** r= −0.33
    TCT r= 0.42* r= −0.44*
    iSP area r= −0.57** r= 0.49**

a The direction of transcallosal inhibition corresponds to the ispsilateral inhibition induced from the stimulated hemisphere towards the opposite hemisphere during voluntary contractions.

Abbreviations: GPT Grooved Pegboard Test, LTI Latency of Transcallosal Inhibition, iSP ispsilateral Silent Period area, TCT Transcallosal Conduction Time.

Significant correlations are marked with asterisks: *p<0.05, **p<0.01, ***p<0.001.

Davidson and Tremblay

Davidson and Tremblay BMC Neuroscience 2013 14:62   doi:10.1186/1471-2202-14-62

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