Devices, systems and methods are disclosed for electrical stimulation of the vagus nerve to treat or prevent disorders in a patient. The methods comprise transmitting impulses of energy to the vagus nerve according to a treatment paradigm that includes single doses of 30 seconds to 5 minutes of continuous stimulation. The treatment paradigm further comprises one or more daily treatment sessions that each include one or more doses for prophylactic or acute treatment of the patients condition. Vagus nerve stimulation is used to modulate the release of inhibitory neurotransmitters in the brain, such as GABA, norepinephrine, and/or serotonin.