Abstract：
:We studied the specific features of ultrasonic vocalization of Wistar rats in various motivational and emotional states. No significant changes were found in ultrasonic vocalization of rats during experimental food motivation and after the satisfaction of food requirements. The state of thirst and satisfaction of water requirements in animals were associated with an increase in the mean frequency of ultrasound and dominance of ultrasonic waves of a higher frequency. The formation of a negative emotional state in rats after immobilization with simultaneous electrocutaneous stimulation was accompanied by a decrease in the total duration of ultrasonic vocalization and shift in the power spectrum of ultrasound towards the dominant frequencies of 20-30, 40-50, and 80-90 kHz. During the post-stress period, the maximum power of ultrasonic waves approached the baseline (30-40 kHz). Our results indicate that the formation of various motivational and emotional states in rats is characterized by specific patterns of ultrasonic vocalization. Therefore, the parameters of ultrasonic vocalization can serve as an objective criteria for the subjective state of a living organism.
journal_name
Bull Exp Biol Medjournal_title
Bulletin of experimental biology and medicineauthors
Pertsov SS,Koplik EV,Karkishchenko NN,Sudakov KVdoi
10.1007/s10517-012-1831-4subject
Has Abstractpub_date
2012-10-01 00:00:00pages
804-7issue
6eissn
0007-4888issn
1573-8221journal_volume
153pub_type
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