title: What is "the vagal effect"? A rejoinder to Velden et al.'s interpretation of the cardiac cycle time effect.
authors.affiliation: University of Amsterdam.
authors.forename: R J
authors.initials: RJ
authors.lastname: Somsen
authors.forename: J R
authors.initials: JR
authors.lastname: Jennings
mesh_terms: D001143:Arousal / Q000502:physiology*; D004562:Electrocardiography; D006321:Heart / Q000294:innervation*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D011603:Psychophysiology; D014630:Vagus Nerve / Q000502:physiology*