BrainReceptors, NeurotransmitterBrain ChemistryBrain InjuriesBrain NeoplasmsBrain MappingBrain EdemaBrain StemBrain IschemiaMagnetic Resonance ImagingBrain AbscessNeuronsHypoxia, BrainBlood-Brain BarrierCerebral CortexBrain Damage, ChronicBrain InfarctionRats, Sprague-DawleyDeep Brain StimulationImage Processing, Computer-AssistedNerve Tissue ProteinsHippocampusTissue DistributionCerebrovascular CirculationTime FactorsDisease Models, AnimalBrain WavesAlzheimer DiseaseCerebellumAstrocytesAnimals, NewbornRats, WistarMice, Inbred C57BLImmunohistochemistryNeural PathwaysRNA, MessengerBrain Injury, ChronicNerve NetElectroencephalographyBehavior, AnimalAging