S01 – EMG Motor Unit Recruitment – Biopac Science Lab

This EMG lesson investigates the properties of skeletal muscle. Students record the EMG data associated with the maximum clench strength for their dominant hand and non-dominant hand. The system records and displays both the raw and integrated EMG signals. Students compare clench strength between their two arms and listen to the sound of their EMG. It is also possible for students to perform a cross-group analysis. Biopac Science Lab EMG I

S01 Data – EMG – Biopac Science Lab

EMG data – sample data from Biopac Science Lab EMG lesson S01. In the lesson, students record EMG from the dominant and non-dominant forearms. They clench their fist four times, squeezing harder each time to reach maximum clench strength with the fourth clench Biopac Science Lab EMG I.

S03 – Components of the ECG – Biopac Science Lab

This ECG lesson introduces the electrocardiograph and the recording of the hearts electrical signal. Students learn about ECG (a.k.a. EKG), recording Lead II, and the components of the ECG complex. They also learn to correlate the electrical events of the ECG (P, Q, R, S, and T components) with the mechanical events of the cardiac cycle. After performing a number of tasks designed to promote changes in the ECG complex, students analyze their own ECG recording. Biopac Science Lab ECG I

S03 Data – ECG – Biopac Science Lab

Sample ECG data from Biopac Science Lab S03. Students discover the electrocardiograph as a primary tool for evaluating electrical events within the heart as they observe rate and rhythm changes in the ECG associated with body position and breathing rate. Biopac Science Lab ECG I

S04 Data – ECG Electrocardiography – Biopac Science Lab

Sample ECG data from Biopac Science Lab lesson S04. Students record ECG from Leads I and III while lying down, sitting up, and breathing deeply while sitting. They then compare the direction of the QRS complex with the direction of the lead axis, estimate the mean ventricular potential, and estimate the mean electrical axis of the QRS complex. Biopac Science Lab ECG II

S05 – EEG Brain Rhythms – Biopac Science Lab

EEG 1 introduces electroencephalographic recording techniques. Students record EEG from the occipital lobe while performing a number of different tasks to demonstrate how the brains electrical activity varies depending on the task. The software filters the raw EEG signal to separate and display alpha, beta, delta, and theta rhythms. Biopac Science Lab EEG rythms

S06 – EEG Alpha Rhythms – Biopac Science Lab

In EEG 2, students will discover how the brain constantly receives sensory input and integrates the information before processing it. Students record EEG data from the occipital lobe while performing a number of tasks. The system records and displays the raw EEG together with the alpha wave and alpha-RMS activity. Students compare baseline EEG with the data recorded during the different tasks. Biopac Science Lab EEG alpha

S08 – EOG – Biopac Science Lab

In EOG, students record horizontal eye movement and observe eye fixation and tracking. Students perform a number of tasks that allow them to record the duration of saccades and fixation. Students also record spatial position of eye movements. Biopac Science Lab EOG

S08 Data – EOG – Biopac Science Lab

Sample data for horizontal and vertical EOG from Biopac Science Lab lesson S08. Students record data and compare eye movements under changing conditions: pendulum tracking, pendulum simulation, reading silently, reading aloud, and reading challenging material. Biopac Science Lab EOG

S09 – Biofeedback (Autonomic Nervous System)

The Biofeedback lesson explores the concept of biofeedback training and its effect on autonomic control of heart rate. An onscreen, thermometer-style heart rate display rises and falls with changes in heart rate, allowing students to become conscious of their heart rates. The Subject will try to influence the reading without physical movements. Biopac Science Lab ANS

S09 Data – biofeedback – Biopac Science Lab

Sample data from biofeedback lesson S09 for Biopac Science Lab, which introduces the concept of biofeedback as a technique to alter autonomic tone. Students measure changes in autonomic tone via heart rate. Students try to voluntarily increase parasympathetic tone and voluntarily increase sympathetic tone. Biopac Science Lab ANS

S11 – Reaction Time – Biopac Science Lab

The Reaction Time lesson demonstrates the effect of learning and physiological processes on reaction times. Students hear two presentation schedules of clicks through a set of headphones. With electrodes in place to record the activity of the extensor digitorum (the primary muscle used to lift a finger), the Subject lifts finger as quickly as possible after hearing a click. Students then perform a statistical analysis of the results, including: group mean, variance, and standard deviation. Biopac Science Reaction Time

S12 – Respiration – Biopac Science Lab

In Respiration 1, students observe physiologic modifications of the respiratory cycle associated with voluntarily increasing and decreasing blood carbon dioxide content by holding breath and hyperventilating. Students will qualitatively determine changes in respiratory minute volume by recording and analyzing EMGs from respiratory muscles of the thorax. Biopac Science Respiratory Cycle