Stimulus representation in rat primary visual cortex: Multi-electrode recordings with micro-machined silicon probes and estimation theory

Winrich A. Freiwald*, Heiko Stemmann, Aurel Wannig, Andreas K. Kreiter, Ulrich G. Hofmann, Matthew D. Hills, Gregory T.A. Kovacs, David T. Kewley, James M. Bower, Axel Etzold, Stefan D. Wilke, Christian W. Eurich

*Corresponding author for this work
4 Citations (Scopus)

Abstract

The study of neural population codes relies on massively parallel recordings in combination with theoretically motivated analysis tools. We applied two multi-site recording techniques to record from cells throughout cortical depth in a minimally invasive way. The feasibility of such experiments in area 17 of the anesthetized rat is demonstrated. Bayesian reconstruction and the interpretative framework of Fisher information are introduced. We demonstrate applicability and usefulness of Bayesian stimulus reconstruction and show that even small numbers of neurons can yield a high degree of representational accuracy under favorable conditions. Results are discussed and future lines of research outlined.

Original languageEnglish
JournalNeurocomputing
Volume44-46
Pages (from-to)407-416
Number of pages10
ISSN0925-2312
DOIs
Publication statusPublished - 27.07.2002

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