On-chip seizure detectors that learn on their own

Adelson Chua and Rikky Muller Department of Electrical Engineering and Computer Sciences at the University of California, Berkeley Epilepsy affects about 50 million people worldwide and is characterized by recurring seizures that can lead to involuntary movements, loss of consciousness, and even death. Several technology-based solutions for monitoring and treating epilepsy have emerged in recent years involving wearable and implantable …

A new paradigm for probabilistic neuromorphic programming

P. Michael Furlong1* and Chris Eliasmith1 1Centre for Theoretical Neuroscience, University of Waterloo, 200 University Ave., Waterloo, N2L 3G1, Ontario, Canada.   *Corresponding author(s). E-mail(s): michael.furlong@uwaterloo.ca; Contributing authors: celiasmith@uwaterloo.ca;   Keywords: probability, Bayesian modelling, vector symbolic architecture, fractional binding, spatial semantic pointers   1     Introduction Since it was first introduced neuromorphic hardware has held the promise of capturing some of …

Direct-Digitization Neural Readouts for Fully-Integrated and High-Density Neural Recording

Monitoring large groups of neurons in various brain regions, including superficial and deep structures, is crucial for advancing neuroscience research on cognition, motor control, behavior, among other areas [1], [2]. Current extracellular CMOS high-density neural probes are becoming the new standard in electrophysiology, allowing for simultaneous recording with excellent spatial and temporal resolution [3]–[5]. However, there is still a demand for neural recording technologies that can access a significantly larger number of neurons, allowing for the decoding of more complex motor, sensory, and cognitive tasks. To achieve this, it is necessary to develop neural probes with much higher number of channels, which requires the design of readout circuits that meet several requirements, including: i) area- and power-efficiency, ii) low noise to capture weak neural signals, iii) capability to interface with large-impedance and high-DC-offset electrodes, and iv) tolerance to artifacts caused by movement or concurrent electrical stimulation.

An Interview with the 2022 SSCS-Brain Joint society best paper award winner

In 2022, Prof. Mahsa Shoaran together with Uisub Shin, Laxmeesha Somappa, Cong Ding, Yashwanth Vyza, Bingzhao Zhu, Alix Trouillet, Stéphanie P. Lacour from EPFL won the SSCS-Brain joint society best paper award. In an interview with the winners of the award, the IEEE Brain Magazine discussed more potential impact of their work.