T. Constandinou

Firing-rate-modulated spike detection and neural decoding co-design

This paper co-designs a low-complexity spike detection algorithm with a neural decoder to improve decoding performance and long-term stability while reducing bandwidth.

Ultra Low Power, Event-Driven Data Compression of Multi-Unit Activity

This paper develops and evaluates ultra-low power MUA compression schemes for wireless iBMIs, finding that delta-asynchronous methods are optimal for short binning periods while synchronous methods are better for longer periods.

Hardware-Efficient Compression of Neural Multi-Unit Activity

This paper develops hardware-efficient compression for neural multi-unit activity signals, reducing bandwidth and power usage while maintaining decoding performance.

Development of an Ultra Low-Cost SSVEP-based BCI Device for Real-Time On-Device Decoding

This paper develops a low-cost EEG-based BCI device using SSVEP decoding with CCA variants, achieving 95.56% accuracy and 102 bits/min ITR on an ESP32 microcontroller.

Selecting an effective amplitude threshold for neural spike detection

This paper evaluates amplitude threshold methods for spike detection, finding that noise-statistics-driven thresholds are less robust to parameter deviations than spike-noise-driven thresholds.

Autonomous Wireless System for Robust and Efficient Inductive Power Transmission to Multi-Node Implants

This paper presents two strategies for improving wireless power transmission to multi-node implants: a scalable resonator array and a self-regulated power management circuit.

Towards robust, unobtrusive sensing of respiration using ultra-wideband impulse radar for the care of people living with dementia

This paper develops an algorithm for non-contact respiration rate measurement using UWB radar and validates its accuracy against ground truth data.

A Block-Capable and Module-Extendable 4-Channel Stimulator for Acute Neurophysiology

This paper presents a 4-channel stimulator for acute neurophysiology experiments, capable of concurrent nerve excitation and inhibition using HFAC block, with a compact and affordable design.