Correct techniques for extracellular recordings of electrical activity in gastrointestinal muscle

Affiliations

• ¹ Auckland Bioengineering Institute, University of Auckland, Auckland 1142, New Zealand; and at the Department of Surgery, Private Bag 92019, University of Auckland, Auckland 1142, New Zealand.
• ² Auckland Bioengineering Institute, University of Auckland, Auckland 1142, New Zealand.
• ³ Auckland Bioengineering Institute, University of Auckland, Auckland 1142, New Zealand; and at the Department of Physics and Engineering, Washington and Lee University, 204W Washington Street, Lexington, Virginia 24450, USA.