Abstract
Using a classical respiratory conditioning technique, this experiment was carried out to examine the possibility of using a piezoelectric sensor (Kynar; 20mm long, 0.2mm thick) to observe a conditioned response. We used 2 fishes of different body style, the bastard halibut Paralichthys olivaceus and the tilapia Tilapia niloticus. The sensor was fitted on a gill cover to detect the respiratory activity, opening and shutting motion. The heart-beat was detected by ECG. After classical conditioning, the conditioning response was measured as suppression both in the respiratory activity and the heart-beat. The two factors coincided with each other. The method of measuring the respiratory activity by the piezoelectric sensor was found to be very useful for measuring the auditory threshold because of its ease of operation, apparent response and greater signal than that of the ECG.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
