The procerebrum is necessary for odor-aversion learning in the terrestrial slug Limax valentianus

There was no significant difference in the residual area of the PC between the slugs that reached the carrot juice within 3 min (n = 5, left dots) and those that did not (n = 11, right dots). The average areas (1.42 ± 0.92 × 10⁻² mm² and 1.07 ± 0.89 × 10⁻² mm²) are indicated as broken and dotted lines, respectively.