calculated motor neuron count logarithm of the ratio of the lesioned side motor neuron count to contralateral side motor neuron count 2013-12-02T18:06:00Z A calculated measurement in which the total number of motor neurons found on the damaged side of the spinal cord is divided by total number of motor neurons found on the undamaged side of the spinal cord and presented as the base 10 logarithm of the resulting value. A logarithm is the power to which a base, such as 10, must be raised to produce a given number. CMO:0001986 JSmith Log(lesioned side motor neuron count/non-lesioned side count) clinical_measurement_ontology logarithm of the lesioned side motoneuron count to non-lesioned side motoneuron count ratio logarithm of the lesioned side motor neuron count to contralateral side motor neuron count ratio