Topographic mapping of single sweep evoked potentials in the brain.
basic_science · Level V
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Abstract
Single trial analysis of brain-evoked potentials via stochastic parametric identification and filtering is here extended to multichannel recordings, leading to the topographic mapping of the brain activity elicited by a single stimulus, instead of the usual averaged mapping. The temporal dynamics of the subsequent sweeps in the protocol of a neurophysiologic experiment can thus be recovered and quantified also on its spatial characteristic.
Medical subject headings
- Brain Mapping
- Evoked Potentials, Somatosensory
- Evoked Potentials, Visual
- Signal Processing, Computer-Assisted