Control your experiment with millisecond precision.

Receive start, stop, and event commands from 3rd party stimulus presentation systems.

Measure behavior with synchronous audio/video capture.

Will integrate seamlessly with leading behavioral monitoring software packages.

Physiology

• Electrocardiography
• Cardiac impedance
• Skin Conductance
• Electromyography (EMG)
• Respiration
• Plethysmography
• Blood pressure
• Movement

Behavior

• Audio/Video recording
• Event marking
• Subject feedback

Psychophysiology

• Heart Rate Variability
• Respiratory Sinus Arrhythmia
• Pre-Ejection Period
• Stroke Volume & Cardiac output
• Electrodermal activity
• Startle response
• Blood pressure variability
• Baroreflex sensitivity
• Threat vs. Challenge
• Stress
• Dyadic interactions
• Emotion regulation

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Why a modular bio-acquisition chassis matters

Cardiovascular, electrodermal and bio-potential psychophysiology each demand a different amplifier — different gain, different filter band, different transducer interface. Researchers building a multi-signal workflow have historically had to stack three or four standalone amplifiers, each with its own clock, its own software, and its own sync problem. The BioNex chassis is the alternative: one synchronized acquisition box, eight identical slots, and a library of plug-in amplifier modules that cover the full physiological signal set. Swap modules across studies without changing the rest of the rig.

The chassis ships configured for the modules the lab needs today and grows as the research scope expands — add an Impedance Cardiograph & GSC 2 module to a Bio-Potential setup, or swap in the 4-Channel Transducer Amplifier for blood-pressure / respiration / force work. Every signal is sampled on the same clock, time-aligned by hardware, and streamed into BioLab Acquisition Software for synchronized recording and event marking.

Typical Use Cases

• Multi-signal psychophysiology (ECG + EDA + respiration on one synchronized record).
• Cardiovascular reactivity studies pairing impedance cardiography with bio-potentials.
• EMG + autonomic recordings in stress, emotion, and decision-making paradigms.
• Long-form social and cognitive neuroscience protocols with multiple physiology channels.
• Group labs sharing one chassis across study designs by swapping modules.

Available BioNex Modules

The BioNex 8-Slot Chassis accepts any combination of the four standard plug-in amplifier modules below. Modules can be added, swapped, or rearranged across slots without recalibrating the chassis or changing the rest of the rig. All modules synchronize to the chassis clock, hardware-aligning signals across the recording.

BioNex 3-Channel Bio-Potential and GSC Amplifier

Catalog: MND-50-371103-00

Records up to 3 simultaneous channels of bio-potential signals — ECG, EEG or EMG — alongside one channel of galvanic skin conductance (GSC / EDA). The combined Bio-Potential + GSC architecture is the workhorse module for psychophysiology paradigms where heart rate, brain or muscle activity, and sympathetic arousal are recorded together on the same time base.

• 3 × bio-potential channels (ECG / EEG / EMG configurable per channel).
• 1 × galvanic skin conductance (GSC / EDA) channel with constant-voltage excitation.
• Per-channel gain and band-pass selection.
• Ideal for stress, emotion, and autonomic-reactivity paradigms.

BioNex Impedance Cardiograph & GSC 2 Amplifier

Catalog: MND-50-371135-00

Records impedance cardiography (ICG) for non-invasive cardiac output, stroke volume, and pre-ejection period measurement, plus two channels of GSC. The dedicated module is what makes the BioNex a cardiovascular psychophysiology platform rather than a generic bio-amp — ICG-derived measures are the gold standard for sympathetic and parasympathetic cardiovascular tone in social, stress and reactivity research.

• Full impedance cardiography (Z₀, dZ/dt, ECG).
• 2 × GSC / EDA channels.
• Excitation current matched to standard clinical ICG protocols.
• Compatible with downstream MindWare Impedance Cardiography Analysis Software.

BioNex 4-Channel Bio-Potential Amplifier

Catalog: MND-50-371102-00

A 4-channel bio-potential amplifier for studies that need more bio-electrical channels than the 3-Channel module provides. Each channel is configurable for ECG, EEG, EMG, or generic bio-potential acquisition, with per-channel gain and filter selection. The module replaces a separate bio-amplifier stack where the only goal is more bio-potential capacity.

• 4 × independent bio-potential channels.
• Per-channel ECG / EEG / EMG configuration.
• Per-channel programmable gain and band-pass filter.
• Hardware-synced to the chassis clock.

BioNex 4-Channel Transducer Amplifier

Catalog: MND-50-371106-00

A 4-channel transducer amplifier that interfaces external biomedical transducers — blood-pressure cuffs, respiration belts, temperature probes, force transducers — with the chassis. The module is interchangeable across any BioNex chassis slot, and its excitation and signal-conditioning circuitry covers the most common bridge and voltage transducer types used in psychophysiology and physiology research.

• 4 × transducer channels (bridge + voltage).
• Standard transducer excitation (configurable per channel).
• Compatible with respiration belts, BP cuffs, temperature, force.
• Slot-interchangeable with any other BioNex module.

Configuration

Specify the modules you need with your BioNex chassis order. NBT can advise on the right module mix for your study design, and modules can be added later as the research scope grows.