Fig. 3

Percent of A fibers and B fibers activated in rats, pigs, and humans (labels along the bottom) in response to stimulation with the mean I₅₀ from each species (rows, labels on left) and fiber type (columns, labels at the top). Each data point represents the percent of A or B fibers activated for an individual. All data shown are for 0.25 ms pulse width for acutely implanted cuff. The vertical dashed lines delineate the responses that match the species and fiber type of the delivered mean I₅₀