Jonathan Viventi

Conference IEEE Biomedical Circuits and Systems Conference : healthcare technology : [proceedings]. IEEE Biomedical Circuits and Systems Conference · October 2022 Brain computer interfaces (BCIs) provide clinical benefits including partial restoration of lost motor control, vision, speech, and hearing. A fundamental limitation of existing BCIs is their inability to span several areas (> cm2) of the cortex ... Full text Open Access Cite

Simultaneous Recording and Stimulation Instrumentation for Closed Loop Spinal Cord Stimulation

Conference International IEEE EMBS Conference on Neural Engineering Ner · May 16, 2019 Chronic neuropathic pain is a debilitating disorder. Many patients receive pain relief when implanted with a Spinal Cord Stimulation (SCS) system. However, there is currently no way to automatically determine the most effective parameters to use in stimula ... Full text Cite

Long-term prediction of μeCOG signals with a spatio-temporal pyramid of adversarial convolutional networks

Conference Proceedings International Symposium on Biomedical Imaging · May 23, 2018 Video prediction into sufficiently long future has many potential applications. Modeling long-term dynamics for times series is challenging with convolution neural network structure, which is usually good for capturing short-term dependencies. In this work ... Full text Cite

In vitro assessment of long-term reliability of low-cost μECoG arrays.

Conference Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · August 2016 Micro-electrocorticographic (μECοG) electrode arrays provide a minimally invasive, high-resolution neural interface with broad cortical coverage. Previously, we fabricated μECoG arrays at a lower cost than commercially available devices using low-cost indu ... Full text Cite

Seizure detection and prediction through clustering and temporal analysis of micro electrocorticographic data

Conference 2015 IEEE Signal Processing in Medicine and Biology Symposium Proceedings · February 11, 2016 We have developed flexible, active, multiplexed recording devices for high resolution recording over large, clinically relevant areas in the brain. While this technology has enabled a much higher-resolution view of the electrical activity of the brain, the ... Full text Cite

Neural mass spatio-temporal modeling from high-density electrode array recordings

Conference 2015 Information Theory and Applications Workshop Ita 2015 Conference Proceedings · October 27, 2015 Neural mass models provide an attractive framework for modeling complex behavior in cortical circuits. The models are based on describing the dynamics of large neural populations through the space and time evolution of a small number of key aggregate stati ... Full text Cite

Semi-chronic chamber system for simultaneous subdural electrocorticography, local field potentials, and spike recordings

Conference International IEEE EMBS Conference on Neural Engineering Ner · July 1, 2015 The brain operates on many different scales, from individual neurons to interacting cortical areas. Similarly, electrophysiology can monitor neural activity at a variety of spatial resolutions. Yet the majority of electrophysiology studies focus on a singl ... Full text Cite

A low-cost, 61-channel μeCoG array for use in rodents

Conference International IEEE EMBS Conference on Neural Engineering Ner · July 1, 2015 Micro-Electrocorticography (μECoG) offers a minimally invasive, high resolution interface with large areas of cortex. A wide variety of μECoG designs have been developed and customized [1]-[4], including active, multiplexed arrays [5] and arrays on dissolv ... Full text Cite

85 dB dynamic range 1.2 mW 156 kS/s biopotential recording IC for high-density ECoG flexible active electrode array

Conference European Solid State Circuits Conference · December 31, 2013 We present the design, implementation, and experimental characterization of a low-noise low-power biopotential recording integrated circuit (IC) in support of a fully implantable, high-density, actively multiplexed and flexible 32×32 electrode array for el ... Full text Cite

Data acquisition system for high resolution, multiplexed electrode arrays

Conference International IEEE EMBS Conference on Neural Engineering Ner · December 1, 2013 The recent development of novel implantable devices capable of interfacing with the brain using hundreds or thousands of individually controllable microelectrodes has the potential to improve diagnosis and treatment methods for medically refractory epileps ... Full text Cite

Improved clustering of spike patterns through video segmentation and motion analysis of micro electrocorticographic data

Conference 2013 IEEE Signal Processing in Medicine and Biology Symposium Spmb 2013 · January 1, 2013 We have developed flexible, active, multiplexed recording devices for high resolution recording over large, clinically relevant areas in the brain. While this technology has enabled a much higher-resolution view of the electrical activity of the brain, the ... Full text Cite

Development of high resolution, multiplexed electrode arrays: Opportunities and challenges.

Conference Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · January 2012 More than one third of the world's 60 million people with epilepsy have seizures that cannot be controlled by medication. Some of these individuals may be candidates for surgical removal of brain regions that generate seizures, but the chance of being seiz ... Full text Cite

Spatiotemporal compression for efficient storage and transmission of high-resolution electrocorticography data.

Conference Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · January 2012 High-resolution Electrocorticography (HR-ECoG) has emerged as a key strategic technology for recording localized neural activity with high temporal and spatial resolution with potential applications in brain-computer interfaces (BCI), and seizure detection ... Full text Cite

Flexible biomedical devices for mapping cardiac and neural electrophysiology

Conference IEEE International Reliability Physics Symposium Proceedings · June 23, 2011 Clinical in-vivo electrophysiological measurements using standard technologies provide spatial resolution limited by the number of electrodes. Recent strategies demonstrate that high resolution is possible by use of active multiplexing silicon electronics, ... Full text Cite

Millimeter-scale epileptiform spike patterns and their relationship to seizures.

Conference Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · January 2011 Advances in neural electrode technology are enabling brain recordings with increasingly fine spatial and temporal resolution. We explore spatio-temporal (ST) patterns of local field potential spikes using a new high-density active electrode array with 500 ... Full text Cite

Flexible organic electronics for use in neural sensing.

Conference Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · January 2011 Recent research in brain-machine interfaces and devices to treat neurological disease indicate that important network activity exists at temporal and spatial scales beyond the resolution of existing implantable devices. High density, active electrode array ... Full text Cite

Mining terabytes of submillimeter-resolution ECoG datasets for neurophysiologic biomarkers.

Conference Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · January 2010 Recent research in brain-machine interfaces and devices to treat neurological disease indicate that important network activity exists at temporal and spatial scales beyond the resolution of existing implantable devices. We present innovations in both hardw ... Full text Cite