REPLY TO COMMENTS MADE BY R . GRAVE DE PERALTA MENENDEZ AND
REPLY TO COMMENTS MADE BY R . GRAVE DE PERALTA MENENDEZ AND
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回复 R 的评论。
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
R. Pascual
中科院分区:
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作者:
R. Pascual
c) My Reply: The principles of linearity and superposition for localization are illustrated in Figure 1. These results (and their generalization) can be replicated by the interested reader, using software that has been available upon request to the author since June 1998 (http://www.keyinst.unizh.ch/loreta.htm). Figures 1a and 1b show LORETA point spread functions for two sources at different depths. The deep source is more blurred than the shallow source. The only way LORETA can resolve both simultaneously active sources is by increasing the strength of the deep source, as shown in Figure 1c (which is the same as Figure 4 in [1]). In general, LORETA can resolve two sources if they are sufficiently separated, and if their estimated strengths are comparable. This is the essence and main property of Low Resolution Brain Electromagnetic Tomography (LORETA): it will always produce a blurred (approximate) image of reality. Blurring will not always allow resolving all maxima. There was never any pompous claim of “high” or “optimum” resolution in LORETA. The main property of LORETA holds.