Role of rat ultrasonic vocalizations in social locomotive behaviour during mating

• Main Author: Boerner, B?rbara Ciralli
• Other Authors: 70638083460
• Language: Portuguese
• Published: PROGRAMA DE P?S-GRADUA??O EM NEUROCI?NCIAS 2017
• Subjects: CNPQ::OUTROS::CIENCIAS: NEUROCI?NCIAS; Vocaliza??es ultrass?nicas; Desvocaliza??o; Locomo??o; Intera??o espacial; Acasalamento
• Online Access: https://repositorio.ufrn.br/jspui/handle/123456789/24078

Submitted by Automa??o e Estat?stica ([e-mail]) on 2017-10-04T23:54:46Z No. of bitstreams: 1 BarbaraCiralliBoerner_DISSERT.pdf: 13754051 bytes, checksum: 1867ba4d0a14ecc5b81205405465f4fd (MD5) === Approved for entry into archive by Arlan Eloi Leite Silva ([e-mail]) on 2017-10-16T19:44:38Z (GMT) No. of bitstreams: 1 BarbaraCiralliBoerner_DISSERT.pdf: 13754051 bytes, checksum: 1867ba4d0a14ecc5b81205405465f4fd (MD5) === Made available in DSpace on 2017-10-16T19:44:38Z (GMT). No. of bitstreams: 1 BarbaraCiralliBoerner_DISSERT.pdf: 13754051 bytes, checksum: 1867ba4d0a14ecc5b81205405465f4fd (MD5) Previous issue date: 2017-08-18 === Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) === Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) === Vocaliza??es ultrass?nicas de ratos de freq??ncia fundamental na faixa de 30-90khz, conhecidas como usvs de '50 khz', est?o relacionadas a contextos apetitivos, como intera??es sociais, recompensa e acasalamento. No entanto, ainda n?o est? estabelecido como essas vocaliza??es contribuem para o comportamento social do rato. Dados anteriores do nosso grupo mostram que essas usvs est?o bem sincronizadas com a locomo??o do rato emissor, aumentando a possibilidade de que as vocaliza??es possam ajudar os ratos a se rastrearem no escuro. N?s testamos essa hip?tese ao avaliar como a desvocaliza??o de um ou dois ratos em pares de macho e f?mea afetaram suas intera??es espaciais durante o comportamento de acasalamento. As medidas de correla??o espacial, como dist?ncia m?dia entre os dois animais e n?mero e dura??o das persegui??es, foram analisadas para cada registro. Resultados preliminares sugerem que, embora a desvocaliza??o n?o influencie o sucesso do acasalamento, ela possa interferir especificamente nas r?pidas intera??es espaciais. === Rat ultrasonic vocalizations of fundamental frequency in the 30-90khz range known as '50 khz' usvs, are related to appetitive contexts such as social interactions, reward and mating. However, how these vocalizations contribute to rat social behaviour is not completely understood. Previous data from our lab shows that these usvs are tightly synchronized with the locomotion of the emitting rat, thus raising the possibility that vocalizations could help rats track each other in the dark. We here tested this hypothesis by assessing how devocalizing one or both rats in a male-female pair affected their spatial interactions during mating behavior. Metrics of spatial correlation, such as average distance between the two animals and number and duration of chases were analyzed for each record. Preliminary results suggest that, although devocalization does not influence success of mating, it may specifically interfere with fast spatial interactions.