Browsing NTNU Open by Author "Ågmo, Anders j"
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Behavioral response is absent under the mating competition in rats (Rattus norvegicus)
Chu, Xi; Ågmo, Anders j (Journal article; Peer reviewed, 2019)Sexually receptive female rats normally copulate with several males during estrus, and multiple paternity is common. Sperm competition is therefore likely to occur. One response to competitive mating is to enhance sperm ... -
Evaluation of Sexual Behavior in Laboratory vs Seminatural Conditions
Chu, Xi; Ågmo, Anders j (Chapter, 2023)Sexual behavior is, by necessity, sexually dimorphic. Males transfer sperm to females, whereas females receive sperm from males. Discussions of sex differences in copulatory behavior are consequently trivial. However, the ... -
Rapid changes in sociosexual behaviors around transition to and from behavioral estrus, in female rats housed in a seminatural environment
Le Moene, Olivia; Hernandez-Arteaga, Enrique; Chu, Xi; Ågmo, Anders j (Peer reviewed; Journal article, 2020)Gonadally intact female rats display sexual behaviors only during a portion of the estrus cycle. In standard experimental setups, the on- and offset of sexual behavior is gradual. However, in naturalistic settings, it is ... -
Rat ultrasonic vocalizations and novelty-induced social and non-social investigation behavior in a seminatural environment
Heinla, Indrek; Chu, Xi; Ågmo, Anders j; Snoeren, Eelke (Peer reviewed; Journal article, 2021)Although rats are known to emit ultrasonic vocalizations (USVs), it remains unclear whether these calls serve an auditory communication purpose. For USVs to be part of communication, the vocal signals will need to be a ... -
Sexual incentive motivation and male and female copulatory behavior in female rats given androgen from postnatal day 20
Chu, Xi; Snoeren, Eelke; Södersten, Per; Ågmo, Anders j (Peer reviewed; Journal article, 2021)Masculinization and feminization of rat sexual behavior has been supposed to occur during a short postnatal period. However, much data have made it evident that these processes may continue until adolescence. In the present ...