Reliability of directional information in unsorted spikes and local field potentials recorded in human motor cortex.

ABSTRACT:

Objective

Action potentials and local field potentials (LFPs) recorded in primary motor cortex contain information about the direction of movement. LFPs are assumed to be more robust to signal instabilities than action potentials, which makes LFPs, along with action potentials, a promising signal source for brain-computer interface applications. Still, relatively little research has directly compared the utility of LFPs to action potentials in decoding movement direction in human motor cortex.

Approach

We conducted intracortical multi-electrode recordings in motor cortex of two persons (T2 and [S3]) as they performed a motor imagery task. We then compared the offline decoding performance of LFPs and spiking extracted from the same data recorded across a one-year period in ea

SUBMITTER: Perge JA 

PROVIDER: S-EPMC4142142 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature