@CONFERENCE\{IMM2004-03522,
    author       = "F. {\AA}. Nielsen and A. C. N. Chen and L. K. Hansen",
    title        = "Testing for difference between two groups of functional neuroimaging experiments",
    year         = "2004",
    month        = "aug",
    keywords     = "Neuroinformatics, kernel density estimation",
    booktitle    = "Den 13. Danske Konference i M{\o}nstergenkendelse og Billedanalyse",
    volume       = "",
    series       = "",
    editor       = "",
    publisher    = "DIKU",
    organization = "",
    address      = "Copenhagen",
    url          = "http://www.imm.dtu.dk/~fn/Nielsen2004Testing-full.html",
    abstract     = "We describe a meta-analytic method that tests for the difference between two groups of functional neuroimaging experiments. We use kernel density estimation in three-dimensional brain space to convert points representing focal brain activations into a voxel-based representation. We find the maximum in the subtraction between two probability densities and compare its value against a resampling distribution obtained by permuting the labels of the two groups. As such it appears as a general method for comparing the local intensity of two non-stationary spatial point processes. The method is applied on data from thermal pain studies where {''}hot pain{''} and {''}cold pain{''} form the two groups."
}