Adult male rats subjected to a two-way avoidance task emitted ultrasonic vocalizations (20-30 kHz) both during the presentation of the conditioned stimulus and the intertrial interval. The rate of ultrasonic calling decreased during the 75-trial session indicating that acquisition of the conditioned avoidance response (CAR) was inversely correlated with the rate of vocalization. The rate of acquisition of the CAR was most rapid in those rats that did not emit any vocalization during learning. These data suggest that ultrasonic calling during stressful situations may be sensitive indicator of underlying emotional states that interfere with the acquisition of a complex task.
Ultrasonic vocalization as an indicator of emotional state during active avoidance learning in rats / Cuomo, Vincenzo; Cagiano, R; DE SALVIA, Ma; Mazzoccoli, M; Persichella, M; Renna, G.. - In: LIFE SCIENCES. - ISSN 0024-3205. - STAMPA. - 50:(1992), pp. 1049-1055. [10.1016/0024-3205(92)90100-4]
Ultrasonic vocalization as an indicator of emotional state during active avoidance learning in rats
CUOMO, VINCENZO;
1992
Abstract
Adult male rats subjected to a two-way avoidance task emitted ultrasonic vocalizations (20-30 kHz) both during the presentation of the conditioned stimulus and the intertrial interval. The rate of ultrasonic calling decreased during the 75-trial session indicating that acquisition of the conditioned avoidance response (CAR) was inversely correlated with the rate of vocalization. The rate of acquisition of the CAR was most rapid in those rats that did not emit any vocalization during learning. These data suggest that ultrasonic calling during stressful situations may be sensitive indicator of underlying emotional states that interfere with the acquisition of a complex task.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
