Fig. 2

Fig. 2 Neuronal activity associated with social (a–h) and asocial (i–l) classic conditioning in zebrafish assessed by in situ hybridization of the immediate early gene c-fos.

Representative photomicrographs of c-fos in situ hybridization in areas that present significant differences associated with learning: OB b, Vv d, Hav f, VM h, Had j, and ATN l. Asterisks indicate statistical significance at p < 0.05 using planned comparisons followed by Benjamini and Hochberg’s method for multiple comparisons p-value adjustment. The line within each violin plot indicates the median. Scale bars represent 40 µm. See Table 1 for abbreviations of brain regions.