Table 2: Mean valence ratings.

Type of stimulus pairTime
Pre-conditioning
𝑀 (SD)
Post-conditioning
𝑀 (SD)

Neutral-Liked
 Dementia patients
 Controls
4.93 (0.96)
5.43 (1.34)
6.63 (1.49)
5.86 (1.70)
Neutral-Neutral
 Dementia patients
 Controls
5.13 (0.34)
5.07 (1.49)
5.60 (0.43)
5.21 (1.57)
Neutral-Disliked
 Dementia patients
 Controls
5.07 (1.28)
5.57 (1.22)
4.00 (1.69)
5.43 (1.82)

Note. Higher ratings denote higher pleasure. 𝑀 : mean, SD: standard deviation.