A comparison of extraneural approaches for selective recording in the peripheral nervous system.
Annu Int Conf IEEE Eng Med Biol Soc
; 2022: 5080-5083, 2022 07.
Article
in En
| MEDLINE
| ID: mdl-36086428
ABSTRACT
The peripheral nervous system is a key target for the development of neural interfaces. However, recording from the peripheral nerves can be challenging especially when chronic implantation is desired. Nerve cuffs are frequently employed using either two or three contacts to provide a single recording channel. Advancements in manufacturing technology have enabled multi-contact cuffs, enabling measurement of both temporal (i.e., velocity) and spatial information (i.e., spatial location). Selective techniques have been developed with different time resolutions but it is unclear how the number of contacts and their spatial configuration affect their performance. Thus, this paper investigates two extraneural recording techniques (LDA and spatiotemporal signatures) and compares them using recordings made from the sciatic nerve of rats using high density (HD, 56 contact), reduced-HD (16 contacts), and low density (LD, 16 contact) datasets. Performance of the two techniques was evaluated using classification accuracy and F1-score. Both techniques show an expected improvement in classification accuracy with the spatiotemporal signature approach showing a 21.6 (LD to HD) - 24.6% (reduced HD to HD) increase and the LDA approach showing a 2.9 (reduced HD to HD) - 41.3% (LD to HD) increase and had comparable results in both the LD and HD datasets.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Sciatic Nerve
Limits:
Animals
Language:
En
Journal:
Annu Int Conf IEEE Eng Med Biol Soc
Year:
2022
Type:
Article