Figure 1
From: Cardiovascular responses to cognitive stress in patients with migraine and tension-type headache
Overview of the test-day procedure. The subjects arrived at 08:00 and started with a structured interview, followed by the first blood sample. At approximately 09:00 the electrodes were mounted, and after a short adaptation period, the stress test started at 10:00. The stress test (incl. UIR and FB rest periods, stress period and recovery period) lasted for approximately 1 h 40 min.