Electrodermal Activity (EDA) Scoring

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Record and analyze EDA/GSR data wirelessly with BioNomadix or with standard wired amplifiers. AcqKnowledge includes a fully automated scoring system for electrodermal activity (EDA) data. The feature includes options for deriving phasic EDA from tonic EDA, locating skin conductance responses (SCR), and event-related EDA analysis. In the SCR location mode the software will mark the event onset, SCR point of max response, and waveform end. The waveform onset and waveform end markers identify when the threshold was crossed. The user can also manually adjust any scored response through the event marking scheme. Export the complete analysis results into a Journal file or Excel spreadsheet.

Preferences for the software allow the user to select:

  • Phasic derivation method
    • Highpass filtering
    • Smoothing baseline removal
  • SCR threshold level
  • Reject SCRs under this percent of max
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Details

This is one of many ADVANCED FEATURES for the selected Application. Scroll down for hardware options.

Learn more about EDA

The event-related EDA analysis works in conjunction with the Digital input to stim events feature. The Digital input to stim events function works with TTL trigger information coming from applications such as Superlab®, E-Prime®, DirectRT®, MediaLab®, Inquisit®, and Presentation®. It converts TTL data acquired on the digital channels of an MP device into stimulus events. Stimulus delivery events are defined in the graph for each low to high transition of the digital data, the indications of stimulus delivery. The digital channels are interpreted as a binary number. Each stimulus event placed into the graph has the corresponding number included with its label.The event-related EDA tool locates the stimulus events and looks for a SCR that falls within a time window, after the stimulus was presented to the subject.

The following measures are extracted from the data.

Name Abbrev. Description Units
Stimulus Delivery Time Stim Time The time within the recording where the stimulus delivery event was located. seconds
Skin Conductance Level SCL Amplitude of the tonic EDA signal at the time when the stimulus was delivered. umho
Response latency Latency Time separating the stimulus delivery from the onset time of the corresponding SCR. This latency will always be less than the maximum allowable latency specified as a parameter for the analysis. seconds
SCR Amplitude SCR Amplitude Height of the corresponding SCR as determined by the change in the tonic EDA from the time of SCR onset to the maximum tonic EDA amplitude achieved during the SCA: |EDA(tmax)-EDA(tonset)|
SCR rise time SCR Rise Time Time taken for the tonic EDA to reach its maximum value within the SCR: tmax-tonset seconds

Videos

EDA - SCR Event Related Analysis

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Application Notes

Knowledge Base

Hardware Packages   |   Electrodermal Activity (EDA) Scoring

Hardware Bundles are complete solutions for the specified application. Choose your preferred platform and bundle, then click "Request Pricing" to request an estimate, add/remove items, or complete purchase. If you have questions about specific items, click through to the product web page for details and specifications, or contact your Local Sales contact.

Wired

MP36R System plus SuperLab System & EDA finger transducer

  • 1 x MP36R Systems
  • 1 x EDA Finger Transducer, BSL
  • 1 x Electrode Gel, Isotonic, 114 g
  • 1 x SuperLab System for MP36/35 or MP36R
  • 1 x EDA Lead Set

MP36R System plus EDA finger transducer & conductive paste

  • 1 x MP36R Systems
  • 1 x EDA Finger Transducer, BSL
  • 1 x Ten20 Conductive Paste 114 g

MP36R System plus EDA finger transducer & isotonic gel

  • 1 x MP36R Systems
  • 1 x EDA Finger Transducer, BSL
  • 1 x Electrode Gel, Isotonic, 114 g
  • 1 x EDA Lead Set

MP36R System plus SuperLab System, EDA lead & disposable EDA electrodes

  • 1 x MP36R Systems
  • 1 x EDA Electrodes
  • 1 x Electrode Gel, Isotonic, 114 g
  • 1 x SuperLab System for MP36/35 or MP36R

MP160 System + E-Prime + EDA amp & reusable electrodes

  • 1 x MP160 Data Acquisition Systems
  • 1 x E-Prime Stimulus Presentation System
  • 1 x EDA Electrodermal Activity Amplifier
  • 1 x Skin Conductance Trans, TP
  • 1 x Electrode Gel, Isotonic, 114 g

MP160 System + E-Prime + EDA amp, leads & disposable electrodes

  • 1 x MP160 Data Acquisition Systems
  • 2 x Lead Wires with Clip
  • 1 x EDA Electrodes
  • 1 x E-Prime Stimulus Presentation System
  • 1 x EDA Electrodermal Activity Amplifier
  • 1 x Electrode Gel, Isotonic, 114 g

MP36R System plus EDA electrode setup

  • 1 x MP36R Systems
  • 1 x EDA Electrodes
  • 1 x Electrode Gel, Isotonic, 114 g

MP36R System plus EDA transducer

  • 1 x MP36R Systems
  • 1 x EDA Finger Transducer, BSL
  • 1 x Electrode Gel, Isotonic, 114 g

MP160 System + EDA amp, leads & reusable EDA electrodes

  • 1 x MP160 Data Acquisition Systems
  • 1 x EDA Electrodermal Activity Amplifier
  • 1 x Skin Conductance Trans, TP
  • 1 x Electrode Gel, Isotonic, 114 g

MP160 System + EDA amp, leads & disposable electrodes

  • 1 x MP160 Data Acquisition Systems
  • 1 x EDA Electrodermal Activity Amplifier
  • 1 x EDA Electrodes
  • 2 x Lead Wires with Clip
  • 1 x Electrode Gel, Isotonic, 114 g

Wireless

BioNomadix Logger with EDA

  • 1 x BioNomadix Wireless Wearable Physiology Logger
  • 1 x EDA Electrodes
  • 1 x Electrode Leads - BioNomadix Wireless
  • 1 x Electrode Gel, Isotonic, 114 g
  • 1 x Electrode Impedance Checker

MP160 System + Stimulus presentation + wireless EDA with disposable electrodes

  • 1 x MP160 Data Acquisition Systems
  • 1 x Electrode Leads - BioNomadix Wireless
  • 1 x EDA Electrodes
  • 1 x BioNomadix Wireless PPG and EDA Amplifier
  • 1 x Electrode Gel, Isotonic, 114 g
  • 1 x SuperLab Stimulus Presentation System

BioNomadix Logger for EDA & PPG

  • 1 x BioNomadix Wireless Wearable Physiology Logger
  • 1 x Electrode Leads - BioNomadix Wireless
  • 1 x EDA Electrodes
  • 1 x Electrode Gel, Isotonic, 114 g

MP160 System + wireless EDA with disposable electrodes

  • 1 x MP160 Data Acquisition Systems
  • 1 x BioNomadix Wireless PPG and EDA Amplifier
  • 1 x EDA Electrodes
  • 1 x Electrode Leads - BioNomadix Wireless
  • 1 x Electrode Gel, Isotonic, 114 g

MRI

MP160 System + E-Prime and EDA for MRI with disposable electrodes

  • 1 x MP160 Data Acquisition Systems
  • 1 x MRI Filtered Cable Sets
  • 2 x Leads - RT for MRI
  • 1 x E-Prime Stimulus Presentation System
  • 1 x EDA Electrodermal Activity Amplifier for MRI
  • 1 x Disp. RT Dry Electrode, 100/pk
  • 1 x Electrode Gel, Isotonic, 114 g

MP160 System + EDA amp and disposable RT electrodes for MRI

  • 1 x MP160 Data Acquisition Systems
  • 1 x MRI Filtered Cable Sets
  • 2 x Leads - RT for MRI
  • 1 x EDA Electrodermal Activity Amplifier for MRI
  • 1 x Disp. RT Dry Electrode, 100/pk
  • 1 x Electrode Gel, Isotonic, 114 g

Animal

MP36R System plus SuperLab System & EDA finger transducer

  • 1 x MP36R Systems
  • 1 x EDA Finger Transducer, BSL
  • 1 x Electrode Gel, Isotonic, 114 g
  • 1 x SuperLab System for MP36/35 or MP36R
  • 1 x EDA Lead Set

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