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. 2020 Nov 20;14:575494. doi: 10.3389/fnins.2020.575494

EQUATION 1.

EQUATION 1

Formula for fNIRS-derived sales prediction value. The t-values of channel Ch2, Ch5, Ch7, Ch8, Ch9, Ch10, Ch12, Ch13, and Ch14 were allocated to represent Brodmann area 9, while for Brodmann area 46 the channel Ch16 and Ch21 were defined. This calculation was performed for each merchandising element, resulting in six fNIRS-derived sales prediction values per Brodmann area (9 and 49).