About this Research Topic
The fast advancements in electrophysiology technologies on microelectrodes and electronics have allowed data acquisition from a large number of channels simultaneously, creating a tremendous and ever-increasing amount of data. The pace of technological change has introduced great computational challenges to emerging data analysis techniques that should scale well with the amount of data and advance the studies on how to process, transmit, and interpret such exploding data volumes to interact with physical world. There are several critical limitations of present data processing techniques that limit broadspread adaptation of current high-density electrophysiological technologies, including (i) transmitting large amount of data through limited communication bandwidth (e.g., wireless) with minimum information loss, (ii) achieving real-time and large-scale signal processing under stringent budget of hardware resources for implantable electronics, and (iii) interpreting electrophysiological signals to interact with complex physical world in a robust and precise fashion.
Recent years have seen a surge of machine learning (ML) applications in neural signal processing to address the aforementioned challenges, thanks to both the substantial theoretical progress and the availability of high-performance and massively-parallelable computational resources (e.g., graphics processing units), that jointly provide the capability to handle large volume of neural data in both online and offline modes. To meet the real-time and scalability requirements, optimizing ML algorithms and turning them into on-chip units pose new challenges in balancing algorithmic precision, versatility, and implementability in hardware. Successful design and implementation of such ML capabilities necessitate solid understanding of both characteristics of neural data being recorded and algorithms, in particularly from a hardware and system perspective.
Considering these facts, our Research Topic aims to collect contributions in all article types (reviews, research papers, methodology papers, etc.) that are broadly related to on-chip design of ML algorithms and its applications to neurophysiological experiments, including neural recording, neural stimulation, nerve decoding, prostheses control, and many more. We welcome submissions of research articles that leverage advanced ML developments to uncover new patterns or insights from neural signals that strengthens our understanding and interaction of nervous system.
Specific topic may include, but not limited to:
- ML methods that reduce data bandwidth and enable wireless transmission, such as autoencoder, compressive sensing, etc.
- Spike sorting algorithms fueled by recent ML developments
- Neural decoding algorithms based on ML approaches that extract motor related signals from EEG/ENG/ECoG/EMG to restore motion functions
- Neuromorphic engineering
- ML based algorithms that enhance signal quality of neural recordings
- Efficient and scalable hardware implementation of ML based neural signal processing algorithms.
Keywords: neural signal processing, machine learning, on-chip computation, neural instrumentation, hardware-algorithm optimization
Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.