An electronic neuromorphic system for real-time detection of high frequency oscillations (HFO) in intracranial EEG


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Date

2021-05-25

Publication Type

Journal Article

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yes

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Abstract

The analysis of biomedical signals for clinical studies and therapeutic applications can benefit from embedded devices that can process these signals locally and in real-time. An example is the analysis of intracranial EEG (iEEG) from epilepsy patients for the detection of High Frequency Oscillations (HFO), which are a biomarker for epileptogenic brain tissue. Mixed-signal neuromorphic circuits offer the possibility of building compact and low-power neural network processing systems that can analyze data on-line in real-time. Here we present a neuromorphic system that combines a neural recording headstage with a spiking neural network (SNN) processing core on the same die for processing iEEG, and show how it can reliably detect HFO, thereby achieving state-of-the-art accuracy, sensitivity, and specificity. This is a first feasibility study towards identifying relevant features in iEEG in real-time using mixed-signal neuromorphic computing technologies.

Publication status

published

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Volume

12 (1)

Pages / Article No.

3095

Publisher

Nature

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Subject

Biosensors; Network models; Neural decoding

Organisational unit

09699 - Indiveri, Giacomo / Indiveri, Giacomo check_circle

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