BIOPAC® Systems, Inc. Logo

EEG reference – linked ears, summed ears, etc.

Reference corresponds to the VIN- connection on EEG amplifiers; on the MP3X, if using the SS1LA lead adapter, VIN- is on the lead adapter.

Use each ear as a reference for its own hemisphere—this will reduce ECG artifact

  1. For each hemisphere, connect a lead from the VIN- on one of the amplifiers to the ear on that hemisphere.
  2. Use jumper cables JUMP100C to connect this VIN- to the other amplifiers.
  3. Connect a lead from the VIN+ of each of amplifier to the electrode locations on the hemisphere.

Link ears—use a CBL204 “Y” electrode lead adapter to link the left and right ears

  1. Connect the two electrode leads into the two inputs of the “Y” adapter.
  2. Connect the single output end of the “Y” to a jumper cable JUMP100C.
  3. Use jumper cables JUMP100C to connect this VIN- to the other amplifier VIN- inputs.

Associated Applications

Spotlight On
short, lightweight pinch leads

LEAD115 Lighter Lead Series

New series of unshielded 45 cm electrode leads with thin cable; suitable for facial EMG and other areas where lighter, shorter lead cables are required. Use for female Touchproof connectors to pinch clip connectors—connect electrodes to either a C-series amplifier or an MEC. The pinch connectors are light weight and the lead cable tinsel wire […]

View All
Latest News

BIOPAC T4 Physiology Conference Recap

Academics and professionals in the field of human physiology gathered at UCSB for the inaugural T4 Physiology Conference. BIOPAC coordinated the three day conference held in late July, which attracted attendees from 26 different countries. The attendees gathered to learn the latest tools, trends, techniques and technology used in life science measurement and interpretation. The […]

BIOPAC blood flow measurement devices recognized

Industry reporting firm medGadget recognized BIOPAC as a major market competitor in the global Blood Flow Measurement Devices market. BIOPAC hardware solutions for blood flow measurement include laser Doppler flowmetry and extensive online and offline analysis of raw blood flow data to take an array of calculations and measurements, such as Pulsatile max, Pulsatile Min, […]

Read All
Request a Demonstration
Request a Demonstration