Finally, in the H-FT, only one ABI patient without apathy showed a GIP incongruent–GIP congruent difference above the confidence interval of the healthy control group (Subject 21, Crawford–Howell t-test = 4.167, p-value ≤ 0.01 Bonferroni–Holm corrected), as well as two ApABI patients (Subject 16, Crawford–Howell t-test = 8.954, p-value ≤ 0.001 Bonferroni–Holm corrected and Subject 19, Crawford–Howell t-test = 10.474, p-value ≤ 0.001 Bonferroni–Holm corrected). This evidence concerns the gene GIP and Apathy.