Topographic mapping of single sweep evoked potentials in the brain

Author

Liberati, D. ; DiCorrado, Stefano ; Mandelli, Stefano

Author_Institution

Politecnico di Milano, Italy

Volume

39

Issue

9

fYear

1992

Firstpage

943

Lastpage

951

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.

Keywords

bioelectric potentials; brain; somatosensory phenomena; vision; averaged mapping; brain; filtering; multichannel recordings; neurophysiologic experiment; single stimulus; single sweep evoked potentials; single-trial analysis; spatial characteristic; stochastic parametric identification; temporal dynamics; topographic mapping; Brain; Electrodes; Electromagnetic coupling; Electromagnetic fields; Filtering; Interpolation; Protocols; Skull; Stochastic processes; Surface topography; Brain Mapping; Evaluation Studies as Topic; Evoked Potentials, Somatosensory; Evoked Potentials, Visual; Humans; Linear Models; Signal Processing, Computer-Assisted;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/10.256428

Filename

256428