| AP | anterior–posterior |
| EEG | electroencephalogram |
| ip | intraperitoneal |
| ipRGC | intrinsically photosensitive retrinal ganglion cell |
| LED | light-emitting diodes |
| ML | medial–lateral |
| NREM | non-rapid eye movement |
| REM | rapid eye movement |
| SCN | suprachiasmatic nucleus |
| ZT | zeitgeber time |
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