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POLYGRAPH Digital Polygraph-Physiograph

For Teaching Experimental Physiology, Pharmacology, Engineering & Research

RR analysis
Merging of Waves
Integration of Waves
Four channel Lie-Detector
Patient Database information
Real Time data storage & review facilities
Experiments on Animal & Human Subjects
Time & Voltage Marking on individual channel

Volumetric Changes
Invasive & Non Invasive BP
Isometric Force
Isotonic Fine Movement
Phono Cardiogram
Respiration and Temperature
Plethysmograph ( Pulse, Heart rate etc)


Electroencephalogram (EEG) : Record and View EEG from any location. See how EEG signal changes in Relaxation, Attention and use filters to examine frequency band ( Alpha, Beta, Delta & Theta)

Muscle contarction (EMG): Record and View EMG signal with surface electrodes from different location. See raw and integrated real time EMG data. Simultaneously compare the EMG signal from one muscle group to another. Study isometric and isotonic muscle loading tasks.

Eletrocardiogram (ECG): Record and View ECG leads, I, II, III, aVR, aVL, aVF & Chest. Study Einthoven Law. Perform measuremnts of P,Q,R,S and T waves. Measure amplitude and timings of waves and calculate BPM. Study realtime ECG and BPM.

ENG: Record and view vertical and horizontal eye movement. Perform Saccade and Gaze Test. See graph for vertical motions and for horizontal motions. A complete X/Y tracings of where subject looked during test period is recorded.

Pulse & Plethysmography: Pulse is measured at the fingertip non-invasively sensing variations in blood density. Examine the relationship between ECG and PULSE. Study mechanical action of the heart

Recording Movement of Isolated Intestine

Respiration: Record and review Respiratory efforts and relative air flow. Respiration is measured by recording chest expansion and contraction. Air flow is indirectly recorded by using a thermister placed next to the nose. Examine the time relationship between chest motion and air flow

Polygraph: Record and review the standard Polygraph measurements e.g. Respiration, Galvic Skin Response and pulse rate. The timing of each question is recorded by a marker on the graph. Study Physiological Changes on telling ( or not telling ) the truth. Any four parameters stimulations can be recorded simultaneously.

Reaction time: Auditory ” Click” stimulation is given to subject and the subject response by pressing a pushbutton. Auditory stimulations are given in two modes random and non random fashion.

Biofeedback: Record and view Heart Rate (BPM) and GSR. Control the X/Y position of a dot, by influencing subjects BPM or GSR. If the heart rate beats faster, the dot moves up, if slower, the dot moves downword. If subject perspire more (decrease in resistance) the dot moves to left increase in resistance, dot moves to the right.

Spirometry : Pulmonary Function testing capable of performing test:

Forced Vital Cpacity – Slow Vital capacity – Maximum Voluntary Ventilation

Heart Sounds: Record and view Phono Cardiogram. Examine relationship between Pulse and Phonocardiagram.

Amphibian Experiments: Amphibian experiments like single Muscle twitch, after load anf free load contractions, strength of stimuli, Tetanus, Fatigue, Isometric contraction etc. are performed using Isotonic and Isometric force Transducer

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