BIOPAC® Systems, Inc. Logo

L09 EDA & Polygraph

Electrodermal Activity (EDA)/ Galvanic skin response (GSR) & the Polygraph

This BSL lesson demonstrates a number of important autonomic concepts and is a great introduction to EDA (a.k.a. GSR).

Students record the standard physiological measures of a polygraph and examine the effects of cognitive behavior and emotion. Students record changes in respiratory rate, heart rate and skin resistance. Each Subject answers a number of simple questions and watches a presentation to stimulate a response. It is possible to use a variety of different stimuli for the lesson.

The lesson is extremely flexible and allows the instructor to look at a variety of autonomic principles.

Experimental Objectives

  1. To become familiar with procedures for recording electrodermal activity.

  2. To observe and record the changes in respiratory rate, heart rate, and skin resistance associated with somatic and special sensory stimuli.

  3. To observe and record changes in respiratory rate, heart rate , and skin resistance associated with cognitive behavior and emotion.

  4. To analyze a 3-channel polygraph recording under various experimental conditions to gain a better understanding of polygraphy and its potential for use and misuse.

Tasks Performed by the Student

BSL Lessons are designed to allow at least four students to record and save data in a normal lab period (60-90 minutes). Typically, labs work most efficiently with three or more students working together at each BSL station.

Videos

BSL L09 Recording

BSL L09 Calibration

Biopac Student Lab Student Download

Lesson Hardware

This lesson requires a Biopac Student Lab (BSL) System and the following hardware. If your BSL System does not include all hardware items, expand your system by selecting required items below. For more details, review the Lesson: L# BSL Lessons - see the Lab Manual or launch BSL; A# and H# BSL PRO Lessons, click the PDF link above to review full setup, recording, and analysis procedures.

Item Name Cart
EL503 Disp. Gen-purp electrode 100/pk Add to Cart
SS2LB Lead set, shielded, BSL Add to Cart
Select Option EDA Lead Set Add to Cart
EL507 Disp. EDA Electrode 100/pk Add to Cart
GEL1 Electrode gel 50 g Add to Cart
GEL101 Electrode Gel, Isotonic, 114 g Add to Cart
ELPAD Abrasive Pads 10/pk Add to Cart
Spotlight On
Smart Center controller, 2-3 wireless transmitters & AcqKnowledge plus case

Smart Center | Stand-alone BioNomadix Wireless Systems

Smart Center Stand-alone, Portable Wireless Physiology Systems Smart Center Essentials entry-level system includes a Smart Center Device (BN-SMART with USB power cable), 2 or 3 Transmitters (BN-xxx-T with chargers); AcqKnowledge for Smart Center, and a case. Smart Center Enhanced adds a Logger (BN-LOGGER) and Basic Scripting License (ACK100W-BAS) to the Smart Center Device (BN-SMART with powercable), 3 […]

View All
Latest News

Alan Macy Honored as Local Hero

“Alan Macy: Scientist, Entrepreneur, and Visionary Community Builder” The Santa Barbara Independent honored Alan Macy as a Local Hero. “What makes Macy a Santa Barbara Independent Local Hero is the combination of vision, generosity, and persistence he has shown in bringing creative people together and in crafting innovative venues for them to collaborate. …For this, and for his […]

BIOPAC Releases New BioNomadix Smart Center System

Good quality data is important for reliable physiological research. No longer restrained to wires or stationary devices, BIOPAC’s newly released Smart Center is a lightweight and compact system designed to acquire quality data. The portable, wireless device offers high fidelity physiological data, allowing for subjects to be untethered while being recorded. The system includes the […]

Read All
Request a Demonstration
Request a Demonstration