Abstract
After the first neuromagnetic measurements with single-SQUID instruments in the early 1970’s, multi-channel devices were built in several laboratories (for a review, see Ilmonierni et al., 1989). However, the number of channels has been rather limited and multiple measurements at different dewar positions are generally needed for locating the neural current sources accurately. We are just getting ready a complete multichannel system for neuromagnetic studies. It consists of a 24-channel dc-SQUID gradiometer, signal detection electronics, signal preconditioning and measurement control electronics, data acquisition system, a probe position indicator (PPI), computer hardware, and software for measurement and analysis of data. This paper will first give an overview of our system and will then concentrate on features of the software which have been the main responsibility of the author.
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© 1989 Plenum Press, New York
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Hämäläinen, M.S. (1989). A 24-Channel Planar Gradiometer: System Design and Analysis of Neuromagnetic Data. In: Williamson, S.J., Hoke, M., Stroink, G., Kotani, M. (eds) Advances in Biomagnetism. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0581-1_142
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DOI: https://doi.org/10.1007/978-1-4613-0581-1_142
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