Alzheimer Disease 1 Alzheimer disease 1 Alzheimer's disease 1 Animals 1 Ca(2+)imaging Circadian rhythms 1 Drosophila 1 Drosophila melanogaster 1 Electrophysiology 1 Eph/ephrin signalling 1 Ephrins 1 Genome-Wide Association Study 1 Humans 1 Locomotor activity 1 Longevity 1 Memory 1 Neurodegenerative Diseases 1 Neurophysiology 1 Receptors, Eph Family 1 Sleep 1 animal 1 degenerative disease 1 ephrin 1 ephrin receptor 1 genetics 1 genome-wide association study 1 human 1 neurophysiology 1