Figure 4.

Relative quantification of PC species in the central brains of control and modafinil‐treated samples. Data were collected from 23 flies for control and 24 flies for modafinil‐treated group. Green and red bars correspond to control and modafinil‐treated groups, respectively. Peak intensities of lipid species were normalized as discussed in the SI. The error bars represent standard error of the mean (SEM). PC species were detected as [M+H]⁺ unless specified as Na/K adduct species. *: p<0.05, **: p<0.01.