title: The ins and outs of fMRI signals.
authors: Nikos K
authors: NK
authors: Logothetis
mesh_terms: D000200:Action Potentials / Q000502:physiology*; D000818:Animals; D005074:Evoked Potentials, Visual / Q000502:physiology*; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D010100:Oxygen / Q000097:blood; D010775:Photic Stimulation; D014793:Visual Cortex / Q000098:blood supply* / Q000502:physiology*; D014795:Visual Pathways / Q000098:blood supply / Q000502:physiology
chemical_list: D010100:Oxygen