Usage Guidelines
This demo is also intended to serve as a tutorial on how to construct a virtual reality experiment. It can be fully modified and has been designed in a modular format with extensive comments to allow reuse of parts in other experiments. Code is written in the Python programming language and extensive support on programming with Python is provided in the software package and user forums. 3D models from the demo can be reused within the VR platform (only).
This is one of many ADVANCED FEATURES for the selected Application. Scroll down for hardware options.
Screen shots from the environment
Objectives
Overview
The participant is moving up on a construction elevator in an environment designed to emphasize the perception of height. Movement can be controlled by the experimenter and/or participant’s physiological reactions.
This demo is based on the work of Wilhelm et al (2005). There are seven ‚floors‚ for the elevator (different height levels). There are two modes of the experiment depending on what controls the vertical movement of the elevator:
Participant-controlled—Progress to the next level is allowed only if there were no SCR responses in the last 20 seconds and the SCL level has not been rising for the last 20 sec.
Experimenter-controlled—Progress to the next level is initiated by a keystroke from the experimenter.
In the participant-controlled mode SCL data is sent from the data acquisition machine (ACQ) to the virtual reality rendering machine (VR). The responses are analyzed in real-time to determine when the participant should move to the next height level.
In both experiment modes digital marker data is sent from VR to ACQ. Key events in the virtual world (i.e. going to a new height level) are marked in the physiological record to facilitate automatic data analysis.
Data analysis
Since levels of the independent variable (height of the participants) are marked in the physiological record, an automated analysis of the collected physiological data can be performed, identifying SCR responses for each height level.
VR Demo – Acrophobia
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.
VR Research System
Wired | VR – Acrophobia
VR Research System with BIOPAC wireless physiological data recording—MP160 System and BioNomadix—and a turnkey VizMove VR System (seated, standing, walking, or projection) plus the biofeedfack link to tightly sync immersive events & subject's real-time response.
VR Biofeedback
Wired | VR – Acrophobia
BIOPAC solutions for biofeedback and virtual reality (VR) can utilize the two-way communications interface for VR. The interface sends marker information from the virtual world to the MP Data Acquisition System and includes the biofeedback data transfer protocol for real-time digital communication, which allows the participant’s physiological feedback to control the VR world.
VizMove turnkey VR System plus biofeedback link to tightly sync immersive events and real-time physiological response data from your existing MP160 Research System—change the world based on subject's response. Choose Seated, Standing, Walking, or Projection VR.
To learn more about solutions for research using biofeedback and virtual reality, click the the Applications & Advanced Features linked above, or visit the VR Resources page to see some examples.
VR & Stimulus Catalog 
Interactive VR
Wired | VR – Acrophobia
VizMove turnkey Virtual Reality system—start running a high-res virtual reality lab from the moment you unpack the box. System options for a variety of lab space and subject mobility requirements. Select seated, standing, walking, or projection VR for single or multiple users.
MP36R System
Wired | VR – Acrophobia
MP36R with AcqKnowledge plus lead set, voltage stimulator, bar electrode, 8 mm snap electrodes & gel
MP160 System
Wired | VR – Acrophobia
MP160 System with EEG amplifier, reusable electrodes, stimulator, and tubephone
VR Research System
VR Biofeedback
Interactive VR
MP36R System
MP160 System
In this fNIRS training, you will see a typical analysis workflow for fNIRS data in experiments featuring both event-based and continuous stimulation. Learn about a powerful yet easy-to-use software package with both a graphical user interface and scripting capability (for automation).
What You Will Learn:
• Preparing data for analysis
• Signal conditioning, noise removal, and managing artifacts
• Best practices for visualizing recorded data
• Block analysis using event markers and/or time
• Further temporal and spatial processing of data, including cell-by-cell processing
• Automation of analysis procedures
• Performing common statistical comparisons (t-test, ANOVA)
• Spatial visualization
LIVE Webinar Aug 25th 8am PT/11am ET
Researchers utilize electrodermal activity (EDA) data in a wide array of protocols. These recent studies join thousands of BIOPAC citations for EDA and represent just a few of BIOPAC’s hardware options for wired, wireless, logged, or MRI protocols with reusable or disposable EDA accessories and AcqKnowledge software solutions for Automated EDA Analysis Routines and EDA Measurement Tools. Caffeine Delivery […]
BIOPAC’s comprehensive EDA Guide provides an introduction to Electrodermal Activity (EDA or GSR) and details topics including: EDA Complex: SCL, SCR, tonic, phasic, specific SCR, non-specific SCR Participant Prep & Electrode Placement Data Recording tips Automated EDA Analysis Routines Digital input to Stim Events Stim-Response Analysis Derive Phasic EDA from Tonic Event-related EDA Analysis Locate […]
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