Table 1.
The number of responsive neurons to each solution in intact rats
| MSG | IMP | MSG + IMP | Saline | NaCl | |
|---|---|---|---|---|---|
| AM | |||||
| Excitatory | 25 (22%) | 25 (42%)a | 8 (24%) | 15 (23%) | 24 (32%) |
| Inhibitory | 8 (7%)b | 3 (5%)c | 4 (12%) | 10 (15%) | 13 (17%) |
| Complex | 1 (1%) | 1 (2%) | 1 (3%) | 1 (2%) | 1 (1%) |
| No response | 80 (70%)b | 31 (52%) | 20 (61%) | 40 (61%) | 38 (50%) |
| Total | 114 | 60 | 33 | 66 | 76 |
| LH | |||||
| Excitatory | 9 (16%) | 9 (26%) | 5 (16%) | 11 (29%) | 6 (20%) |
| Inhibitory | 6 (11%) | 11 (32%)c | 7 (22%) | 9 (24%) | 5 (17%) |
| Complex | 1 (2%) | 0 (0%) | 1 (3%) | 0 (0%) | 0 (0%) |
| No response | 39 (71%)a | 14 (41%) | 19 (59%) | 18 (47%) | 19 (63%) |
| Total | 55 | 34 | 32 | 38 | 30 |
a, b, c Significant difference from the ratios of responsive neurons to saline (a) or NaCl (b) in the same brain region, or those to the same solution in the other brain region (c) (residual analysis, standard residual > 2.0).
AM, amygdala; LH, lateral hypothalamus; Saline, physiological saline.