Figure 2
From: Effects of painful stimulation and acupuncture on attention networks in healthy subjects
Painful stimulation and acupuncture conditions: A ST36: 5 mm below the head of the fibula under the knee joint, and 2 mm lateral to the anterior tubercle of the tibia. B shows the paradigm for painful stimulation and acupuncture: The needle remained at rest for 2 min (R1) before bidirectional rotation at 1 Hz for 2 min (M1). The needle was not manipulated for 3 min (R2), and then, manipulation was repeated for 2 min (M2), followed by a third period of rest for 1 min (R3). Then the needle was removed.