Table 1A.
Analysis of behavioral parameters in the risk-averse groups.
| Group | Period | Choice response | Omission (%) | Perseverative response | Correct response latency (sec) | Reward collection latency (sec) | Feed-tray entry | |
|---|---|---|---|---|---|---|---|---|
| LI | Continued | Basal | 60.40 ± 3.04 | 7.80 ± 1.64 | 1.40 ± 0.16 | 2.66 ± 0.16 | 2.59 ± 0.33 | 0.63 ± 0.13 |
| R1 | 53.80 ± 4.86 | 13.65 ± 4.23 | 1.51 ± 0.16 | 2.69 ± 0.41 | 3.32 ± 0.83 | 0.76 ± 0.07 | ||
| R7 | 59.80 ± 7.57 | 7.01 ± 1.73 | 1.65 ± 0.28 | 2.36 ± 0.19 | 2.88 ± 0.63 | 0.64 ± 0.07 | ||
| Acute coc | 34.20 ± 9.26 | 20.38 ± 9.02 | 1.07 ± 0.22 | 2.78 ± 0.13 | 3.02 ± 0.51 | 0.35 ± 0.05 | ||
| Delayed | Basal | 63.80 ± 8.33 | 7.39 ± 1.83 | 1.25 ± 0.18 | 2.81 ± 0.29 | 1.74 ± 0.17 | 1.19 ± 0.15 | |
| R1 | 59.00 ± 3.70 | 13.18 ± 1.76 | 1.35 ± 0.23 | 3.45 ± 0.18 | 1.47 ± 0.07 | 0.99 ± 0.21 | ||
| R7 | 41.20 ± 5.03 | 11.19 ± 2.11 | 1.34 ± 0.35 | 2.98 ± 0.26 | 1.49 ± 0.08 | 1.26 ± 0.24 | ||
| Acute coc | 40.20 ± 12.25 | 28.45 ± 10.56 | 1.50 ± 0.35 | 2.84 ± 0.57 | 3.49 ± 1.88 | 0.89 ± 0.18 | ||
| HI | Continued | Basal | 86.14 ± 3.16 | 2.39 ± 0.31 | 1.22 ± 0.13 | 1.81 ± 0.17 | 2.46 ± 0.81 | 1.07 ± 0.41 |
| R1 | 83.14 ± 6.95 | 2.61 ± 0.70 | 1.20 ± 0.22 | 1.86 ± 0.17 | 2.61 ± 1.11 | 1.66 ± 0.53 | ||
| R7 | 90.57 ± 5.43 | 0.78 ± 0.42 | 1.23 ± 0.17 | 1.58 ± 0.14 | 1.89 ± 0.18 | 1.49 ± 0.70 | ||
| Acute coc | 55.29 ± 9.69*** | 7.42 ± 3.31 | 1.39 ± 0.19 | 2.01 ± 0.38 | 2.84 ± 0.51 | 0.73 ± 0.10 | ||
| Delayed | Basal | 71.10 ± 6.10 | 3.64 ± 1.10 | 1.32 ± 0.22 | 2.15 ± 0.25 | 2.39 ± 0.53 | 0.77 ± 0.09 | |
| R1 | 67.14 ± 10.07 | 8.81 ± 4.11 | 1.50 ± 0.35 | 2.57 ± 0.37 | 2.35 ± 0.54 | 1.21 ± 0.22 | ||
| R7 | 60.14 ± 5.73†† | 5.13 ± 1.50 | 0.93 ± 0.14 | 2.31 ± 0.26 | 2.88 ± 1.35 | 0.99 ± 0.23 | ||
| Acute coc | 31.00 ± 4.15***,† | 19.56 ± 7.74**,† | 1.72 ± 0.35 | 2.63 ± 0.29 | 9.00 ± 3.26**,†† | 0.48 ± 0.10 | ||
Each parameter's units of measurement are as follows: choice response (%), omission (%), perseverative response (actual number of touch), correct response latency (sec), reward collection latency (sec), feed tray entry (the number of feed-tray entries during ITI divided by the total number of trials initiated).
**
p < 0.01,
***
p < 0.001; compared to the basal score within either continued or delayed group.
†
p < 0.05,
††
p < 0.01; compared to the continued group after acute cocaine injection.