Making Physiology Happen


SRS-100 Stimulus Response System


  • Record biopotentials such as ECG, EMG, EEG, EOG, etc..
  • Record EDA ( GSR, SCL, SCR) activity
  • Record Temperature, Pressure, etc.
  • Mark onset of Visual Stimuli
  • Record responses with the RPD-400 and EM-220
  • Present Audio-Visual stimuli with Experiment Builder
  • Use Digital outputs to send events to external devices.
  • Accept exetrnal TTL Digital Inputs from other devices.
  • Prebuilt experiments for common psychological tests, such as Stroop effect, Gaze-CueParadigm, Eriksen Flanker Test,
  • Use multiple monitors
  • Does not need multiple computers
  • Use the Stimulus Response Module to automate data analysis
  • Site License included

Experiment Builder:

  • Present Media, such as images, movies, sounds.
  • Use spreadsheets to automate tasks.
  • Graphical User Interface.
  • Cross-platform application, running on Windows or Mac OS X

Stimulus Response Analysis:

Automatically calculate data  from the response elicited by a stimulus. Parameters that can be calculated from a response include:

  • Mean,
  • Maximum
  • Minimum
  • Time to Maximum
  • Time to Minimum
  • Response Time
  • Correct Response


  • Use iWire-AM  to monitor the onset and the peak amplitude of the audio, including  participant vocal response via microphone.
  • Sync with Gazepoint Eyetrackers.
  • Use iWorx-Serial-Interface to sync with serial output devices

Some of the Experiments that can be performed with this system:

Human PsychoPhysiology
HP-02: Galvanic Skin Response and Emotion
HP-03: Galvanic Skin Response and Deception, Coginitive Compliance and Vigilance
HP-09: Facial Expression Electromyograms (EMG) and Emotion
HP-10: Visual Evoked Potentials (VEP)
HP-13: The Gaze Cue Paradigm
HP-16: Eriksen Flanker Test
Human Heart
HH-02: ECG and Heart Sounds with Stethoscope
HH-04: Six Lead ECG
HH-06: Heart Rate Variability
Human Muscle
HM-02: Electromyogram Activity in Antagonistic Muscles
HM-03: Oculomotor Muscle Activity
HM-08: Electromyogram (EMG) Activity while Arm Wrestling
HM-09: Kinesiology and Electromyogram (EMG) Activity in Targeted Muscles
HM-10: The Electrogastrogram (EGG) and Growling Stomach
HM-11: Electromyogram (EMG) for Paired Arm Wrestling
Human Nerve
HN-01: Auditory and Visual Reflexes
TT-01: Tutorial with ECG


Part Number: SRS-100

System includes:
  • IX-TA-220: iWorx TA Recorder with built-in Spirometer, Heart Sounds Sensor, Grip Force/Blood Pressure Sensor, Temperature Sensor, O2 Electrode Input, two iWire Digital Interfaces, High and Low Voltage Stimulators.
  • LabScribe Software with site license and free updates.
  • Experiment Builder for presentation of audio visual stimuli.
  • LS-SR: Stimulus Response analysis module for LabScribe.
  • iWire-B3G Isolated ECG and EMG iWire Recording Module.
  • RPD-400: 4 Button Response Pad.
  • LS-220: Unobtrusive Light sensor for detecting the precise onset of visual stimulus
  • EM-220: Event Marker with Phono Connector for use with IX-TA-220 & IX-RA-834.
  • A-RM-220: Respiration Monitor (nasal cannula)
  • C-ISO-GSR: GSR Finger Electrodes (Set of Two) for iWire-B3G Recording Module.
  • C-ISO-SL7: Recording Leads - 7 Safety Pin to Snap Connectors.
  • C-USB: USB Cable.
  • A-GC-7160: Disposable Adult Electrodes - 100 per package.
  • A-UP12-DC-25-1.5A: Univ. 12VDC Power Supply.