John LaRocco
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View article: Decoding Temporally Encoded 3D Objects from Low-Cost Wearable Electroencephalography
Decoding Temporally Encoded 3D Objects from Low-Cost Wearable Electroencephalography Open
Decoding visual content from neural activity remains a central challenge at the intersections of engineering, neuroscience, and computational modeling. Prior work has primarily leveraged electroencephalography (EEG) with generative models …
View article: A multimodal brain phantom for noninvasive neuromodulation
A multimodal brain phantom for noninvasive neuromodulation Open
Noninvasive neuromodulation enables brain stimulation without surgery but requires precise optimization of stimulation parameters to ensure efficacy and safety. Direct testing on human or animal subjects is costly, time intensive, and cons…
View article: 3D Printed Control and Actuation for Distributed Manufacturing and Self-Replication
3D Printed Control and Actuation for Distributed Manufacturing and Self-Replication Open
We report on the first open-source FDM 3D printer capable of fabricating its complete electromechanical ecosystem—motors, solenoids, memory systems, and control elements—representing a fundamental advance toward true mechanical self-replic…
View article: Sustainable memristors from shiitake mycelium for high-frequency bioelectronics
Sustainable memristors from shiitake mycelium for high-frequency bioelectronics Open
Neuromorphic computing, inspired by the structure of the brain, offers advantages in parallel processing, memory storage, and energy efficiency. However, current semiconductor-based neuromorphic chips require rare-earth materials and costl…
View article: Reconstructing Temporally Encoded 3D Objects from Low-Cost Electroencephalography
Reconstructing Temporally Encoded 3D Objects from Low-Cost Electroencephalography Open
Turning images and scenes from imagination and memory has applications from engineering to artistic expression. Electroencephalography (EEG) is a non-invasive technique for recording the brain’s electrical activity via scalp electrodes, ac…
View article: Imagined Speech Reconstruction with 3D Neural Metabolism and Large Language Model Integration
Imagined Speech Reconstruction with 3D Neural Metabolism and Large Language Model Integration Open
Cognitive linguistics posits that language underpins human thought, and this principle has influenced the study and development of large language models (LLMs). In particular, several studies have investigated the metabolic costs of senten…
View article: Low-Cost Hygroelectric Devices Enable Continuous Onboard Trickle Charging for Small Electric Vehicles
Low-Cost Hygroelectric Devices Enable Continuous Onboard Trickle Charging for Small Electric Vehicles Open
Hygroelectric materials generate electrical power by harnessing the interaction between ambient water vapor and the surface of the material, exploiting the inherent polarity of water molecules—specifically, the negative and positive charge…
View article: Sustainable Memristors from Shiitake Mycelium for High-Frequency Bioelectronics
Sustainable Memristors from Shiitake Mycelium for High-Frequency Bioelectronics Open
Neuromorphic computing, inspired by the structure of the brain, offers advantages in parallel processing, memory storage, and energy efficiency. However, current semiconductor-based neuromorphic chips require rare-earth materials and costl…
View article: Low-intensity transcranial focused ultrasound of the amygdala modulates neural activation during emotion processing
Low-intensity transcranial focused ultrasound of the amygdala modulates neural activation during emotion processing Open
Introduction Low-intensity focused ultrasound (LIFU) is a form of neuromodulation that offers increased depth of penetrance and improved spatial resolution over other non-invasive techniques, allowing for modulation of otherwise inaccessib…
View article: Ballistic Testing of an Aerogel/Starch Composite Designed for Use in Wearable Protective Equipment
Ballistic Testing of an Aerogel/Starch Composite Designed for Use in Wearable Protective Equipment Open
Concussion is a costly healthcare issue affecting sports, industry, and the defense sector. The financial impacts, however, extend beyond acute medical expenses, affecting an individual’s physical and cognitive abilities, as well as increa…
View article: Pilot study comparing effects of infrared neuromodulation and transcranial magnetic stimulation using magnetic resonance imaging
Pilot study comparing effects of infrared neuromodulation and transcranial magnetic stimulation using magnetic resonance imaging Open
No prior work has directly compared the impacts of transcranial photobiomodulation (tPBM) and transcranial magnetic stimulation (TMS) on the human brain. This within-subjects pilot study compares the effects of tPBM and TMS of human somato…
View article: Firefighting with Conductive Aerosol-Assisted Vortex Rings
Firefighting with Conductive Aerosol-Assisted Vortex Rings Open
Conventional firefighting tools and methods can strain water sources, require toxic foams, or rely on pre-installed countermeasures. A low-cost, non-toxic, and portable option was previously overlooked in portable devices: electrically ass…
View article: Optimization of a handheld line launcher for microgravity utility and rescue tasks
Optimization of a handheld line launcher for microgravity utility and rescue tasks Open
Line launchers are devices that have been used for centuries for maritime rescue operations. The typical implementation is the use of a gun, rocket, or mechanical launcher to hurl a grappling hook or flotation buoy for stranded ships and o…
View article: Comparing Elastocaloric Cooling and Desiccant Wheel Dehumidifiers for Atmospheric Water Harvesting
Comparing Elastocaloric Cooling and Desiccant Wheel Dehumidifiers for Atmospheric Water Harvesting Open
Approximately two billion people worldwide lack access to clean drinking water, negatively impacting national security, hygiene, and agriculture. Atmospheric water harvesting (AWH) is the conversion of ambient humidity into clean water; ho…
View article: Tactile Simultaneous Localization and Mapping Using Low-Cost, Wearable LiDAR
Tactile Simultaneous Localization and Mapping Using Low-Cost, Wearable LiDAR Open
Tactile maps are widely recognized as useful tools for mobility training and the rehabilitation of visually impaired individuals. However, current tactile maps lack real-time versatility and are limited because of high manufacturing and de…
View article: Evaluating Commercial Electrical Neuromodulation Devices with Low-Cost Neural Phantoms
Evaluating Commercial Electrical Neuromodulation Devices with Low-Cost Neural Phantoms Open
Non-invasive transcranial electrical stimulation is a category of neuromodulation techniques used for various disorders. Although medically approved devices exist, the variety of consumer electrical stimulation devices is increasing. Becau…
View article: Virtually Reconstructing Bernhard Heine’s Osteotome
Virtually Reconstructing Bernhard Heine’s Osteotome Open
The osteotome was a hand-cranked medical chainsaw designed in 1830 by the German surgeon Bernhard Heine. Before Heine, surgeons used crude, manual tools, such as hammers, chisels, and handsaws. The osteotome was among the first mechanical …
View article: Evaluating a Controlled Electromagnetic Launcher for Safe Remote Drug Delivery
Evaluating a Controlled Electromagnetic Launcher for Safe Remote Drug Delivery Open
Biologists and veterinarians rely on dart projectors to inject animals with drugs, take biopsies from specimens, or inject tracking chips. Firearms, air guns, and other launchers are limited in their ability to precisely control the kineti…
View article: Evaluation of an English language phoneme-based imagined speech brain computer interface with low-cost electroencephalography
Evaluation of an English language phoneme-based imagined speech brain computer interface with low-cost electroencephalography Open
Introduction Paralyzed and physically impaired patients face communication difficulties, even when they are mentally coherent and aware. Electroencephalographic (EEG) brain–computer interfaces (BCIs) offer a potential communication method …
View article: Electroencephalographic Response of Brain Stimulation by Shock Waves From Laser Generated Carbon Nanotube Transducer
Electroencephalographic Response of Brain Stimulation by Shock Waves From Laser Generated Carbon Nanotube Transducer Open
Neuromodulation is used to treat neurological disorders. Focused ultrasound can deliver acoustic energy to local regions of the brain, including deep brain structures. In addition, it is possible to induce the activation or inhibition of n…
View article: A Systemic Review of Available Low-Cost EEG Headsets Used for Drowsiness Detection
A Systemic Review of Available Low-Cost EEG Headsets Used for Drowsiness Detection Open
Drowsiness is a leading cause of traffic and industrial accidents, costing lives and productivity. Electroencephalography (EEG) signals can reflect awareness and attentiveness, and low-cost consumer EEG headsets are available on the market…
View article: Optimizing Computer–Brain Interface Parameters for Non-invasive Brain-to-Brain Interface
Optimizing Computer–Brain Interface Parameters for Non-invasive Brain-to-Brain Interface Open
A non-invasive, brain-to-brain interface (BBI) requires precision neuromodulation and high temporal resolution as well as portability to increase accessibility. A BBI is a combination of the brain-computer interface (BCI) and the computer-…
View article: A functional analysis of two 3D-scanned antique pistols from New Zealand
A functional analysis of two 3D-scanned antique pistols from New Zealand Open
Preservation of historical weapons requires continual and careful maintenance. Digital three-dimensional (3D) scanning can assist in preservation and analysis by generating a 3D computer model. New Zealand presents a special case for histo…
View article: Design & Analysis of a Terahertz Power Source for a Non-invasive, Non-ionizing Imaging of Full Body Prosthetics: A Novel Technique
Design & Analysis of a Terahertz Power Source for a Non-invasive, Non-ionizing Imaging of Full Body Prosthetics: A Novel Technique Open
The authors have designed and studied the superlattice terahertz device for accurate detection of cancer cell in a Full Body Prosthetic (FBP). For this a generalized non-linear simulator is developed. The model predicts that identification…
View article: Spindler: a framework for parametric analysis and detection of spindles in EEG with application to sleep spindles
Spindler: a framework for parametric analysis and detection of spindles in EEG with application to sleep spindles Open
This work demonstrates that parameter selection based on physical constraints rather than labelled data can provide effective, fully-automated, unsupervised spindle detection. This work also exposes the dangers of applying cross-validation…