Table 1.
Basic demographic information, blood glucose values, within-session timings, and overall performance on the object-location binding task (±SE)
| Glucose (n = 16) | Placebo (n = 15) | ||
|---|---|---|---|
| Female/Male ratio | 11/5 | 11/4 | |
| Age (years) | 22.5 (1.5) | 26.5 (4.0) | |
| Body mass index | 21.6 (0.6) | 23.2 (0.9) | |
| Self-reported mood | |||
| Pre-session stress | 4.9 (1.1) | 2.9 (1.1) | |
| Post-session stress | 4.0 (0.8) | 4.6 (0.8) | |
| Pre-session arousal | 5.1 (0.9) | 5.9 (0.9) | |
| Post-session arousal | 6.8 (1.0) | 7.1 (1.0) | |
| Blood glucose (mmol/L) | |||
| Pre-session | 5.16 (0.14) | 4.99 (0.14) | |
| Mid-session | 7.84 (0.23) | 5.15 (0.24) | ** |
| Post-session | 7.81 (0.30) | 5.11 (0.31) | ** |
| Within-session timings (min) | |||
| Pre- to mid-session | 31.31 (1.43) | 33.13 (1.47) | |
| Mid- to post-session | 20.81 (0.92) | 20.80 (0.95) | |
| Average session length | 52.13 (2.01) | 53.93 (2.07) | |
| Overall task performance | |||
| Object memory (%) | 67.38 (1.54) | 63.06 (2.68) | |
| Location memory (%) | 30.35 (1.29) | 25.76 (1.54) | * |
| Object-location binding memory (%) | 20.83 (1.15) | 16.25 (1.00) | ** |
| Retrieval time (s) | 27.30 (1.72) | 29.31 (2.11) | |
| Number of invalid location errors | 1.96 (0.13) | 1.97 (0.22) | |
| Number of location swap errors | 0.70 (0.05) | 0.68 (0.06) | |
| Mean conditional probability | 0.47 (0.02) | 0.43 (0.02) | # |
Glucose effects: #p = 0.056; *p < 0.05; **p < 0.01