Skip to main content
. 2015 Mar 18;40(8):2001–2014. doi: 10.1038/npp.2015.50

Table 1. Licking Microstructure for 0.12 M NaCl Solution before and after i.p. LiCl in PBNsham and PBNx Rats.

Lesion group PBNsham
PBNx
ANOVA
Test day Day 1 Day 2 Day 3 Day 1 Day 2 Day 3 Group Day Interaction
Measure Mean (±SE) Mean (±SE) Mean (±SE) Mean (±SE) Mean (±SE) Mean (±SE) F(1,30) (p) F(2,60) (p) F(2,60) (p)
Intake (ml) 17.61 (1.23) 5.85* (0.86) 20.07 (1.76) 28.87 (3.09) 21.25 (2.99) 26.11 (2.06) 26.81 (0.001) 26.91 (0.001) 4.80 (0.012)
Meal duration (min) 25.98 (0.49) 21.67* (1.39) 26.78 (0.60) 26.11 (1.27) 23.64 (1.70) 25.39 (1.61) <1 (NS) 7.62 (0.001) 1.51 (0.23)
Mean burst size (licks/burst) 106.77 (9.74) 31.99* (6.51) 113.97 (13.85) 90.89 (11.01) 83.93 (6.30) 96.44 (12.44) <1 (NS) 15.14 (0.001) 8.99 (0.001)
First min lick rate 238.46 (31.73) 48.21* (11.78) 318.43 (18.79) 146.55 (27.03) 167.00 (24.49) 270.00 23.90 <1 (NS) 36.61 (0.001) 13.10 (0.001)
Number of bursts 31.55 (2.44) 45.40* (3.59) 37.89 (3.52) 53.00 (5.63) 45.00 (6.44) 50.75 (7.21) 5.28 (0.03) <1 (NS) 4.07 (0.02)
Mean ingestion rate (licks/min) 118.30 (8.24) 54.11* (6.36) 135.56 (10.04) 165.47 (13.31) 146.42 (17.43) 164.78 (16.52) 17.928 (0.001) 19.79 (0.001) 7.29 (0.001)
Mean pause duration (s) 42.05 (4.54) 28.97* (3.18) 32.08 (2.62) 19.65 (2.18) 27.18 (5.24) 21.41 (4.19) 9.85 (0.004) <1 (NS) 4.31 (0.18)
Pause time (%) 70.31 (2.03) 84.61* (1.80) 65.51 (2.49) 57.75 (3.07) 62.03 (4.32) 56.83 (4.08) 19.14 (0.001) 18.99 (0.001) 6.044 (0.004)
Lick volume (μl) 5.73 (0.19) 4.43* (0.17) 5.36 (0.26) 6.46 (0.42) 5.73* (0.30) 6.62 (0.33) 13.41 (0.001) 15.31 (0.001) 1.21 (NS)
Mean ILI <250 ms (ms) 145.30 (1.35) 146.30 (1.84) 145.99 (1.63) 143.75 (2.57) 146.65 (2.18) 147.97 (2.66) <1 (NS) 2.94 (NS) 1.53 (NS)
Proportion ILIs 250–2000 ms (%) 3.25 (0.49) 16.31* (2.04) 4.37 (0.99) 5.68 (1.18) 4.30 (0.77) 5.25 (1.22) 3.93 (NS) 17.93 (0.001) 26.09 (0.001)

Rats received 0.3 mEq i.p. lithium chloride injection 15 min after the day 1 test. Bold font indicates that p-values met the criterion for statistical significance, α=0.05. Bold font with asterisk indicates a statistically significant paired t-test value (p<0.05) comparing day 1 with day 2 values within the lesion group.