“…For instance, Ding et al (2021) selected fourteen conductive electrodes (Fp1, FP2, F3, FZ, F4, C3, CZ, C4, P3, PZ, P4, O1, LZ, and O2) to indicate the emotional changes caused by product color, by which significant LPP components were generated at the Fp1 and P4 positions. The high color consistency of the product was favorable for inducing a larger LPP amplitude [ 88 ].…”