Figure 6. Comparison of the phase shift and endogenous period lengthening of PER2::Luc oscillations obtained with the classical procedure or the embedded device. A: Mean and individual values of phase shift (left) and endogenous period change (right) of DC retinal explants obtained with each procedure. The retinal explants are not exposed to any light stimulation. Bars represent the mean±SEM. Classical method: n = 12, Embedded setup: n = 17. B: Mean and individual values of phase shift (left) and endogenous period change (right) of light-stimulated retinal explants obtained with each procedure. The retinal explants are exposed to 30 min of 480 nm (classical light-setup) or 465 nm (embedded light-setup) light stimulation at 10¹⁵ photons/cm²/s. Bars represent the mean±SEM. Classical method: n = 9, Embedded setup: n = 7.