PSY397H1 Lecture Notes - Optic Chiasm, Retina, Microtubule
Document Summary
In mammals, there are photoreceptors in the retina that are not visual cells: they receive information about light and dark. In the eye: eye has been taken out of mouse, hamster circadian rhythms free run in light cycle and dark cycle, photoreception happens through the retina, all mammals, now you can see what the retina projects to. Evidence that retinal and pineal are involved in some way. Looking at mammalian systems in general, we see that the whole system is an hierarchy oscillator. The scn is connected to light and dark the only oscillator. Single cells contain clocks now their pays attention to what goes on in its environment. Scn pays attention to light and dark. We know how systems are generated one is molecular clock, we also know there are oscillators that are generated by mechanism that are post-translational. Nervous system is built to accommodate all that goes around it to drive rhythmicity.
