Table 2. Emotion effect on recollection in the MTL (t scores).
| MTL regions | Emo rRS-kRS | Neu rRS-kRS | (Emo rRS-kRS) > (Neu rRS-kRS) |
|---|---|---|---|
| AMY | 5.29 (R)/2.11 (L) | 4.98 (R) | 3.29 (R) |
| HC (head) | 8.83 (R)/3.21 (L) | 4.36 (R)/3.41 (L) | 5.70 (R) |
| HC (body) | 7.58 (R) | 2.62 (R)/4.13 (L) | 2.26 (L) |
| HC (tail) | 3.95 (R)/3.94 (L) | - | 2.61 (R)/2.04 (L)* |
| APHG (EC) | 3.98 (R) | - | - |
| APHG (PC) | 2.64 (L) | - | - |
| PPHG | 5.52 (R)/6.01 (L) | 3.59 (R) | * |
t statistics were performed on the signal extracted from the peak voxels identified in each MTL subregion and contrast of interest (t = 1.94, P < 0.05) Emo, emotional; Neu, neutral; (RS, Hits - Misses); rRS, recollection-based RS; kRS, familiarity-based RS; R, right hemisphere; L, left hemisphere; PHG, parahippocampal gyrus; APHG, anterior PHG; PPHG, posterior PHG; PC, perirhinal cortex.
*
For the (Emo rRS-kRS) > (Neu rRS-kRS) contrast, because the peak voxel fell on the border between the HC tail and the posterior parahippocampal gyrus, these two regions were considered together