MAP Data Acquisition System | Plexon

The Multichannel Acquisition Processor (MAP) Neurophysiology System is Plexon’s original standard for programmable amplification, filtering and real-time spike sorting of multi-channel signals acquired in neuroscience research. Residing in hundreds of labs around the world and referenced in over 1,000 scientific publications, the MAP System is a real neuroscience industry legend. Although new MAP systems are no longer sold, upgrades are still possible and support continues.

The MAP System, also known as the Multichannel Neuronal Acquisition Processor or even the Multi-Neuron Acquisition Processor (MNAP) according to a variety of research papers, was the foundation of multichannel recording industry-wide.  For decades it has been affectionately referred to as “The Harvey Box” in reference to Harvey W. Wiggins, the MAP System designer and Plexon’s founder.

The following primary components come together as the MAP System:

  • The MAP chassis offering a modular system of plug-in circuit boards – including signal boards, digital signal processing (DSP) boards, digital input boards, digital output boards, and host link board – is either table-top or rack mountable.
  • The MAP Control Computer operating the Real-Time Acquisition System Programs for Unit Timing in Neuroscience (RASPUTIN) a suite of client/server programs that control spike sorting in the MAP and provide real-time data visualization and analysis. RASPUTIN’s operation is based on two primary programs, Sort Client and MAP Server. Sort Client is the primary control program for the MAP System hardware, and MAP Server is the low-level interface for configuring the MAP System.
  • PBX Preamplifiers available in 16, 32, 48 and 64 channels, and can be combined to achieve higher channel counts.

The MAP System offers powerful, large-scale neuronal waveform recording and real-time spike sorting using DSP hardware, and simultaneous 40kHz (25µsec) analog-to-digital (A/D) conversion on each channel at 12-bit resolution.  Further, ten-pole, total high-cut filtering across the system completely eliminates high-frequency noise from industry-leading eye coil systems.  Optional analog signal acquisition for continuous recording of spike, field potential, physiological, and behavioral signals is available.

Building on the MAP System’s legendary contribution to the neuroscience space, Plexon has significantly advanced its capabilities and functionality through the launch of the OmniPlex® Neural Data Acquisition System .