Multiple changes in connectivity between buccal ganglia mechanoafferents and motor neurons with different functions after learning that food is inedible in Aplysia

Table 1.

Results of a four-way ANOVA on data from synaptic connections to B3 as shown in Figure 1

Mean square df F P
Main effects
 Naive or after learning 0.6 1,183 3.67 0.053
 Within-train plasticity (first or fifth PSP) 6.98 1,183 42.97 <0.00001
 Between-train plasticity (first, second, or third train) 2.69 2,366 16.58 <0.00001
 Location (S1-1, S1-2, S1-3, S1-4) 0.14 3,183 0.86 0.47
Interactions relevant to learning
 First or fifth PSP × naive or after learning 0.0001 1,183 0.0008 0.98
 Between-train plasticity × naive or after learning 0.07 2,366 0.46 0.63
 Location × naive or after learning 0.07 3,183 0.43 0.73
Triple interactions relevant to learning
 Location × within-train plasticity × naive or after learning 0.01 3,183 0.07 0.97
 Location × between-train plasticity × naive or after learning 0.14 2,366 0.83 0.54
 Between-train plasticity × within-train plasticity × naive or after learning 0.36 2,366 2.22 0.11
Quadruple interaction relevant to learning
 Location × stimulus train × first or fifth PSP × learning 0.07 6,366 0.44 0.85

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