Figure 6

A flow chart showing trait associations and the effects of SSRI treatment in slowly and rapidly developing crickets. Slow development is associated with higher (resting and maximum) metabolic rates (MR), stress reactivity (SR), exploration (Expl) and shy personality. Rapid development is associated with lower (resting and maximum) metabolic rates, stress reactivity, exploration and bold personality. By presumably raising 5-HT levels in the brain, SSRI decreases key trait values (MR, SR, Expl) in slowly developing crickets and raises these values in rapidly developing crickets. This results in the “normal” (intermediate) personality phenotype in slowly and rapidly developing crickets that is typical of the control line.