title: Response to: Letter from Paul Eugene Summers, Federico Giove, and Carlo Adolfo Porro.
authors: Stanford University School of Medicine, Department of Anesthesiology, Division of Pain Medicine, Palo Alto, CA 94304, USA Stanford University School of Medicine, Department of Radiology, Palo Alto, CA 94304, USA.
authors: Paul
authors: P
authors: Nash
authors: Gary
authors: G
authors: Glover
authors: Sean
authors: S
authors: Mackey
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D009474:Neurons / Q000502:physiology*; D059225:Nociception / Q000502:physiology*; D010146:Pain / Q000503:physiopathology*; D013116:Spinal Cord / Q000503:physiopathology*
references: Brooks JC, Kong Y, Lee MC, Warnaby CE, Wanigasekera V, Jenkinson M, Tracey I. Stimulus site and modality dependence of functional activity within the human spinal cord. J Neurosci. 2012;32:6231-6239.
references: Cahill CM, Stroman PW. Mapping of neural activity produced by thermal pain in the healthy human spinal cord and brain stem: a functional magnetic resonance imaging study. Magn Reson Imaging. 2011;29:342-352.
references: Coghill RC, Price DD, Hayes RL, Mayer DJ. Spatial distribution of nociceptive processing in the rat spinal cord. J Neurophysiol. 1991;65:133-140.
references: Ghazni NF, Cahill CM, Stroman PW. Tactile sensory and pain networks in the human spinal cord and brain stem mapped by means of functional MR imaging. AJNR Am J Neuroradiol. 2010;31:661-667.
references: Glover GH, Li TQ, Ress D. Image-based method for retrospective correction of physiological motion effects in fMRI: RETROICOR. Magn Reson Med. 2000;44:162-167.
references: Summers PE, Ferraro D, Duzzi D, Lui F, Iannetti GD, Porro CA. A quantitative comparison of BOLD fMRI responses to noxious and innocuous stimuli in the human spinal cord. Neuroimage. 2010;50:1408-1415.