Tactile Acuity Charts: A Reliable Measure of Spatial Acuity Bruns, Patrick ; Camargo, Carlos J. ; Campanella, Humberto ; Esteve, Jaume ; Dinse, Hubert R. ; Röder, Brigitte Abstract Publication: PLoS ONE Pub Date: February 2014 DOI: 10.1371/journal.pone.0087384 Bibcode: 2014PLoSO...987384B