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Real-time classification of experience-related ensemble spiking patterns for closed-loop applications

Journal Contribution - Journal Article

Communication in neural circuits across the cortex is thought to be mediated by spontaneous temporally organized patterns of population activity lasting ~50 -200 ms. Closed-loop manipulations have the unique power to reveal direct and causal links between such patterns and their contribution to cognition. Current brain-computer interfaces, however, are not designed to interpret multi-neuronal spiking patterns at the millisecond timescale. To bridge this gap, we developed a system for classifying ensemble patterns in a closed-loop setting and demonstrated its application in the online identification of hippocampal neuronal replay sequences in the rat. Our system decodes multi-neuronal patterns at 10 ms resolution, identifies within 50 ms experience-related patterns with over 70% sensitivity and specificity, and classifies their content with 95% accuracy. This technology scales to high-count electrode arrays and will help to shed new light on the contribution of internally generated neural activity to coordinated neural assembly interactions and cognition.
Journal: Elife
ISSN: 2050-084X
Volume: 7
Publication year:2018
BOF-keylabel:yes
IOF-keylabel:yes
BOF-publication weight:10
CSS-citation score:2
Authors from:Government, Higher Education
Accessibility:Open