Research publications, commentaries, conference abstracts, & neurons firing.

Journal Articles

Currently 50+ peer reviewed publications with an h-index of 23 (via Google Scholar)

2026

  • M Krishnamurthy, S Saha, P Lo, PL Whetzel, T Issabekova, J Ferreris Vargas, J DiGiovanna, MA Haendel, "Enabling Down Syndrome Research through a Knowledge Graph–Driven Analytical Framework" under review arXiv

2025

  • V Kovacevic, O Milicevic, N Ilic Raicevic, M Kojicic, A Mijalkovic Lazic, N Skundric and J DiGiovanna "INAEME: Integral Neoantigen Analysis with Entirety of Mutational Events," preprint-only bioRxiv

2024

2023

2021

2020

2018

2017

2016

2015

2014

2013

2012

2010

2009

Peer Reviewed Conference Proceedings

2024

2023

2022

2021

2013

2012

2011

2010

2009

2008

2007

2006

PhD Dissertation

J DiGiovanna, "Changing the Brain Machine Interface Paradigm: Co-adaptation based on Reinforcement Learning", Ph. D. Dissertation, University of Florida, Gainesville, FL [abstract only due to publishing agreements]

Disclaimer: The documents distributed here have been provided as a means to ensure timely dissemination of scholarly and technical work on a noncommercial basis. Copyright and all rights therein are maintained by the authors or by other copyright holders, notwithstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder. (Notice borrowed from Peter Dayan).

Research

Prior to industry, I worked for a decade in academia with focus on applying reinforcement learning algorithms to develop neuroprosthetic devices.

Co-adaptive prosthetic control

Synergistic adaptation toward control is an artificial intelligence and a user learning together to solve problems. This co-adaptation increases overall control capabilities for new environments and/or changing control signals. Specifically, the artificial intelligence can adapt to assist more or less based on the user's current needs and abilities. Unfortunately this is no free lunch - the costs of co-adaptation include increased system complexity and potential instability - both intelligences must share common goals to develop learning synergies. We’ve shown this control architecture for online robot control using neural states. However, the architecture has implications for multiple other AI configurations.

Vestibular prosthetics

The CLONS project developed suitable technological solutions to increase the quality of life of people affected by vestibular disorders. Specifically, an innovative closed-loop sensory neural prosthesis has been developed for testing in animal models. Furthermore, these technologies are currently being implemented in the clinic (by the teams at University Hospital of Geneva and Maastricht University). This prosthesis partially restores vestibular information by electrically stimulating nerves connected to the semicircular canals. The stimulation patterns are based on information provided by inertial sensors of the user’s head rotations. There are exciting research areas in this field in terms of stimulation parameters, efficiency, specificity, and changes over time.

Listening to the brain

Here are some brief recordings of the sound of neurons. Action potentials are an electrical signal and can be replayed as sound. Experts can hear the differences between multiple units (neurons) recorded by the same electrode. Below, I created frequency-shifted version (like an old NES game) of a raw recording, where each neuron has a unique tone. The activity of these neurons occurred during initiation and continuation of bipedal locomotion. The modification highlights neuron interactions. Can you hear when the brain says go?

Brain-spinal interfaces (BSI)

Brain-machine interfaces typically aim to replace an aspect of body function by connecting the user's nervous system with external prosthetics. The NEUWalk Project developed brain-spinal interfaces that restore body function by providing a new pathway between the brain and spinal cord which bypasses an injury site. This strategy will exploit existing, functional spinal circuitry and also provide physiological benefits for the patient. Recent spinal cord injury therapy breakthroughs using a novel, multi-pronged neurorehabilation approach showed that rats with completely paralyzing spinal cord injury can walk again after a combination of traditional physical therapy, pharmacology, and epidural electrical stimulation. The integration of BSI with neurorehabilitation has facilitated patients gaining voluntary control of therapy and eventually locomotion. This was later commercialized by Onward Medical and is currently in patients there and within clinical trials worldwide.

let’s work together

networking

Happy to connect with new people on LinkedIn, I’m also on the Rands Leadership and Acquired slack workspaces (jack_digiovanna).

research profiles