Eric J. Earley, PhD
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ericjearley.com
Eric J. Earley, PhD
@ericjearley.com
I turn humans into cyborgs 🦾🦿
Assistant Research Prof | CU Anschutz
Leadership Team | ComSciCon
Serial dabbler
he/him
www.ericjearley.com
I am grateful to my coauthors, Malin Ramne and Prof. Johan Wessberg, for working with me to develop these measures and ensure their multidisciplinary and translational potential within research and healthcare.

You can read the full paper here: journals.physiology.org/doi/full/10....
Unified measures quantifying intensity and similarity of pain and somatosensory percepts | Journal of Neurophysiology | American Physiological Society
journals.physiology.org
July 18, 2025 at 3:38 PM
These measures are generalizable and applicable to any application of somatosensory maps, including grid-based and free-hand drawings, resulting in improved pain characterization and better understanding of the needs and progression of patients experiencing pain.
July 18, 2025 at 3:38 PM
SPD is derived from optimal transport theory, which quantifies differences between two probability distributions or somatosensory maps. The utility of these measures is demonstrated using data from two studies characterizing somatosensory percepts and neuropathic pain drawings.
July 18, 2025 at 3:38 PM
SPI is inspired by Piper’s law, which describes the phenomenon of incomplete spatial summation wherein changes in pain area do not yield linearly proportional changes in perceived intensity.
July 18, 2025 at 3:38 PM
In this paper, we propose two unified measures, Somatosensory Percept Intensity (SPI) and Somatosensory Percept Deviation (SPD), to overcome these limitations and to more accurately quantify longitudinal changes in sensation and pain.
July 18, 2025 at 3:38 PM
Epimysial electrodes may be better suited for larger muscles and for predicting gross hand movements.

Intramuscular electrodes may be better suited for smaller muscles and predicting finger movements.

Co-authors: Morten B. Kristoffersen, Max Ortiz-Catalan

www.frontiersin.org/journals/neu...
Frontiers | Comparing implantable epimysial and intramuscular electrodes for prosthetic control
IntroductionImplantable electrodes are the subject of increasing interest due to the possibilities they present for the control of assistive devices such as ...
www.frontiersin.org
July 3, 2025 at 6:59 PM