biologia - Studia

Ş.-C. MIRESCU,. L. CIOBANU, V. ANDREICA, C.-L. ROŞIORU
Fig. 2. The variation of the electrical resistance during some simple motor acts. The Y axis
represents the voltage, which varies inversely with resistance
With the same electrodes connected, the subjects were tested for the
psycho galvanic reflex. They were asked a number of neutral questions (e.g. Do
you live in Cluj-Napoca at the moment? or Do you have a cat at home?) and a number
of emotional content questions (e.g. Have you ever witness a tragic auto accident?
or Do you get along well with your spouse?). On asking the emotional content
questions, the decrease in electrical resistance was significantly greater than when
asking the neutral questions (Fig. 3.).
Precisely revealing the psycho galvanic reflex, the bridge proved its
accuracy in measuring the electrical resistance of the skin.
Pathological measurements. The main criterion for the patients to be
included in the study was to exhibit at most two internal pathologies. Patients with
more than two distinct pathologies could influence the accuracy of the
determination. The investigated pathologies included: liver steatosis, surgical organ
ablation, biliary diskinesia, rheumatismal disease, hepatitis C and heart failure.
The data obtained from the measurements were compared to the medical
documents, which were considered gold standard for diagnosis.
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