Instruments for behavioural and psychophysiological research
Behavioural research observes participant actions, while psychophysiology adds physiological signals recorded in a defined context. Instruments may measure gaze, task performance and movement together with EDA/GSR, ECG, EMG, respiration or PPG, depending on the acquisition platform and sensors.
Stimulus presentation, recording and analysis should be treated as separate layers. An eye tracker does not replace physiological acquisition, and one physiological signal does not automatically identify an emotional state. A reliable setup requires a hypothesis, controlled protocol and planned synchronisation.
Interlab groups professional research instruments, software and accessories needed to assemble complete experimental setups.
Eye-tracking, biometrics, EEG and fNIRS systems
EEG is not a separate product line within this category. It may be recorded through an appropriately configured BIOPAC path or supplied by an external system and synchronised with the other modalities.
Eye-tracking systems
Screen-based and wearable instruments for gaze measurement. Selection depends on the stimulus, movement, accuracy, sampling rate and study environment.
Biometric measurement systems
BIOPAC platforms for physiological data acquisition with channels, amplifiers, sensors and software matched to the protocol.
fNIRS instruments
Non-invasive measurement of cortical blood-oxygenation changes using near-infrared light. Optode layout and mounting depend on the brain region and movement tolerance.
Multimodal studies require confirmed hardware and software compatibility, event markers and latency tests for the exact models.
Research solutions for science, business and industry
Universities and research centres use these instruments in cognitive, psychophysiological, neuroscience and ergonomics protocols. Business applications include usability, consumer behaviour, communication and product development. Industrial projects may assess interfaces, task load, safety and human–machine interaction.
The same instrument class can serve different fields, but the configuration is not universal. Screen-based eye tracking differs from mobile observation in real space. A wired multisignal BIOPAC laboratory differs from a wireless movement study. fNIRS requires its own optode layout and signal-quality process.
Comparison should therefore cover the full workflow: calibration, synchronisation, event marking, export and analysis, not only the device specification. Infrastructure projects are covered under fibre-optic sensors, while optics and optical-path equipment are grouped under photonics laboratory equipment.
How to select instruments for a behavioural research laboratory
Start by defining the participant, stimulus and response to be measured. Then specify the environment, channels, participant movement, session length, synchronisation and analysis workflow.
- Research question: define the phenomenon and the measure that will answer it.
- Environment: screen, physical object, real space, VR or a movement task.
- Modalities: eye tracking, physiological signals, EEG, fNIRS or a combination.
- Synchronisation: hardware markers, supported software integrations, time stamps and latency tests.
- Analysis: export formats, licences, processing and storage.
Include a short protocol, participant count, session length, signal list and existing software in the enquiry. This supports a configuration comparison rather than an arbitrary equipment list.
Describe the protocol and modalities
Specify the stimuli, movement, signals, synchronisation and expected data format.