Biopac student lab

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The Biopac Student Lab system is manufactured by BIOPAC Systems, Inc., Goleta, California. It was introduced in 1995 as a digital replacement for aging chart recorders and oscilloscopes that were widely used in undergraduate teaching laboratories. The advent of low cost personal computers meant that older analog technologies could be replaced with powerful and less expensive computerized alternatives [1].

Students in undergraduate teaching labs use the BSL system to record data from their own bodies, animals or tissue preparations. The BSL system integrates hardware, software and curriculum materials including over sixty experiments that students use to study the cardiovascular system, muscles, pulmonary function, autonomic nervous system, and the brain.

Contents

History of Physiology and Electricity

One of the more complicated concepts for students to grasp is the fact that electricity is flowing throughout a living body at all times and that it is possible to use the signals to measure the performance and health of individual parts of the body. The Biopac Student Lab System helps to explain the concept and allows students to understand physiology [2].

Physiology and electricity share a common history, with some of the pioneering work in each field being done in the late 1700’s by Count Alessandro Giuseppe Antonio Anastasio Volta and Luigi Galvani. Count Volta invented the battery and had a unit of electrical measurement named in his honor (the Volt). These early researchers studied “animal electricity” and were among the first to realize that applying an electrical signal to an isolated animal muscle caused it to twitch. The Biopac Student Lab uses procedures similar to Count Volta’s to demonstrate how muscles can be electrically stimulated.

Biopac Student Lab Concept

The BSL system includes data acquisition hardware with built-in universal amplifiers to record and condition electrical signals from the heart, muscle, nerve, brain, eye, respiratory system, and tissue preparations [3]. The data acquisition system receives the signals from electrodes and transducers. The electrical signals are extremely small—with amplitudes sometimes in the microVolt (1/1,000,000 of a volt) range—so the hardware amplifies these signals, filters out unwanted electrical noise or interfering signals, and converts them to a set of numbers that the computer can read. Biopac Student Lab software then displays the numbers as waveforms on the monitor.

The data acquisition system connects to a PC running Windows or Macintosh operating systems, via USB. The electrodes and transducers employ sensors that allow the software to communicate with the students to ensure that they are using the correct devices and collecting good data. Software guides students by using onscreen instructions and a detailed lab manual follows the scientific method. Once students have collected data, they use analysis tools to measure the amplitude and frequency, plus a wide range of other values from the electrical signals [4]. The analysis process allows students to make general comparisons with the data. They can compare their results to published normal values, or the values before and after a subject performed a specified task. They can also compare results with other students in the lab. The software is available in English, French Spanish, Italian, Japanese, and Chinese.

Thousands of undergraduate labs worldwide use the Biopac Student Lab System to teach physiology, pharmacology, biology, neuroscience, psychology, psychophysiology, exercise physiology, and biomedical engineering. Publishers have adopted the curriculum materials and included them in commercially available lab manuals.

Published Lab Manuals that include the Biopac Student Lab

  • Human Anatomy & Physiology Laboratory Manual, Main Version, Update, 8/E
    • Elaine N. Marieb, Holyoke Community College
    • Susan J. Mitchell, Onondaga Community College
    • Publisher: Pearson Benjamin Cummings
  • Laboratory Manual for Anatomy & Physiology, Third Edition
    • Author: Michael G. Wood, M.S., Del Mar College, Corpus Christi, Texas
    • Publisher: PEARSON Benjamin Cummings
  • Laboratory Guide to Human Physiology Version: 12
    • Author: Stuart I. Fox, Los Angeles Pierce College
    • Publisher: WCB/McGraw-Hill
  • Laboratory Investigations in Anatomy and Physiology Version: Main
    • Stephen N. Sarikas, Lasell College (Newton, MA)
    • Publisher: PEARSON Higher Education
  • Manuel de travaux pratiques physiologie humaine Version: 6
    • Michel Dauzat , Collectif Broché
    • Publisher: SAURAMPS

Current Systems

  • BSLHPY Human Physiology System
  • BSLAPH Animal Physiology and Introductory Human Physiology System
  • BSLBIO Biology System
  • BSLEXP Exercise Physiology and Biomechanics System
  • BSLPSY Psychophysiology and Neuroscience System
  • BSLBME Biomedical Engineering System
  • BSLPHA Pharmacology and Toxicology System
  • BSLHSCS Health Sciences System
  • BSLBSC Basic System
  • BSLADV Advanced System
  • BSLULT Ultimate System
  • BSLINTRO Introductory System

Data Acquisition Hardware History

  • BIOPAC MP30 Unit released 1995–2004
  • BIOPAC MP35 Unit released 2004–2008
  • BIOPAC MP36 Unit released 2008
  • BIOPAC MP45 Unit released 2009

Biopac Student Lab Software History

  • Windows Version
    • 3.7.3 translation: JP Japanese 12/24/2008
    • 3.7.5 English for MP45 12/25/2008
    • 3.7.3 translation: CT Chinese Traditional 12/05/2008
    • 3.7.3 translation: IT Italian 10/15/2008
    • 3.7.3b English XP/VISTA 09/29/2008
    • 3.7.3 translation: FR French 09/26/2008
    • 3.7.3 translation: ES Spanish 09/19/2008
    • 3.7.3 English 06/28/2008
    • 3.7.2 translations: CT, ES, FR, JP 04–05/2008
    • 3.7.1 Win 98 SE, 2000, Me, XP-H/P/M 04/29/2005
    • 3.7.0 Win 98 SE, 2000, Me, XP-H/P/M 03/02/2004
    • 3.6.7 Win 98, Me, 2000 08/23/2001
    • 3.6.6.1 Win 95, 98, NT, 2000 03/15/2001
    • 3.6.6 Win 95, 98, NT 08/30/2000
    • 3.0.5 Win 95, 98, NT 11/29/1999
    • 3.0.4 Win 95, 98, NT 06/29/1999
    • 3.0.3 Win 95, 98, NT 11/30/1998
    • 3.0.2 Win 95 04/03/1998
    • 2.1.7 Windows 08/26/1997
    • 2.1.6 Windows (no OS info or date on disk)
    • 2.15 Windows (no OS info or date on disk)
    • 2.1 Windows (no OS info or date on disk)
  • Macintosh Version
    • 3.7.3 OS X 10.4-5 01/12/2009
    • 3.7.2 10.3-4 06/08/2007
    • 3.7.1 10.4- R 00/00/2005
    • 3.0.7 Web Version 01/24/2002
    • 3.0.7 7.#-8.6 08/17/2001
    • 3.0.6-USB 7.#-8.6 05/05/2000
    • 3.0.6 7.#-8.6 12/06/1999
    • 3.0.4 Mac 12/06/1999
    • 3.0.3 Mac 11/30/1998
    • 3.0.1 Mac 04/03/1998

References

  1. Investigative Process & Technology in Introductory Physiology Author: Hawke, Scott D.
  2. Understanding data collection in the modern physiology laboratory Advan Physiol Educ 33:78-79, 2009. doi:10.1152/advan.90174.2008
  3. Teaching in the laboratory: Inquiry-Based Laboratory Course Improves Students’ Ability to Design Experiments and Interpret Data Marcella J. Myers and Ann B. Burgess, Advan Physiol Educ 27:26-33, 2003. doi:10.1152/advan.00028.2002
  4. HOW WE LEARN: Comparing biology majors from large lecture classes with TA-facilitated laboratories to those from small lecture classes with faculty-facilitated laboratories Barbara E. Goodman, Karen L. Koster and Patrick L. Redinius, Advan Physiol Educ 29:112-117, 2005. doi:10.1152/advan.00054.2004
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