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A11 Resting Potential – Crayfish Muscle

Follow BSL setup and use “Lab 4: Crayfish Muscle Resting Potential” from the Crawdad Lab Manual for Neurophysiology to record and alter resting potential by changing external ion concentration.

Experimental Objectives

  1. To record resting potential.
  2. To alter resting potential by changing external ion concentration.

Tasks Performed by the Student

Follows “Lab 4: Crayfish Resting Potential” from the Crawdad Lab Manual.

Videos

Biopac Student Lab Student Download

Student Prep & Distance Learning

Click the link(s) below for sample data and/or lesson procedure video(s), BSL PRO Lesson procedures (PDF) for human lessons*, and graph template files (*.gtl) for BSL PRO Lessons. If more than one .gtl is available, download the .gtl with the _suffix to match BSL version and hardware.

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
BSLCBL8 High-impedance Cable for MP36/36R, MP35 or MP45 Add to Cart
CBL106 Cbl BNC-F to 2mm pin plug, 10 cm Add to Cart
JUMP100C Jumper, 1.5 mm Stackable, 10 cm Add to Cart
EL452 Needle electrode Unipolar 12 mm TP Add to Cart
CBL200 Cbl 2 mm pin to TouchProof, 10 cm Add to Cart
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Using Facial Expressions to Understand Behavior

Learn how to collect and interpret facial expressions data with facial coding software called FaceReader, and how to synchronize with other biometric response. FaceReader is an emotion reading software that analyzes facial movements to classify subject response. Facial expressions can be classified as happy, sad, scared, disgusted, surprised, angry, contempt, and neutral.

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