Sex differences in behavioural and neural responsiveness to mate calls in a parrot
| Autor: | Eda-Fujiwara, Hiroko, Satoh, Ryohei, Hata, Yuka, Yamasaki, Marika, Watanabe, Aiko, Zandbergen, Matthijs A., Okamoto, Yasuharu, Miyamoto, Takenori, Bolhuis, Johan J., Cognitieve Neurobiologie, Leerstoel Bolhuis, Helmholtz Institute, Experimental Psychology (onderzoeksprogramma PF), Afd Psychologische functieleer |
|---|---|
| Přispěvatelé: | Cognitieve Neurobiologie, Leerstoel Bolhuis, Helmholtz Institute, Experimental Psychology (onderzoeksprogramma PF), Afd Psychologische functieleer |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Male
0301 basic medicine medicine.medical_specialty Model system Biology Audiology Article Avian Proteins Sexual Behavior Animal 03 medical and health sciences Parrots 0302 clinical medicine biology.animal medicine Animals General Neurons Sex Characteristics Multidisciplinary business.industry Brain Neuronal activation 030104 developmental biology Dominance (ethology) Sexual behavior Budgerigar Female Functional asymmetry Artificial intelligence Vocalization Animal business 030217 neurology & neurosurgery Sex characteristics |
| Zdroj: | Scientific Reports, 6. NLM (Medline) Scientific Reports |
| ISSN: | 2045-2322 |
| Popis: | Vocalisation in songbirds and parrots has become a prominent model system for speech and language in humans. We investigated possible sex differences in behavioural and neural responsiveness to mate calls in the budgerigar, a vocally-learning parrot. Males and females were paired for 5 weeks and then separated, after which we measured vocal responsiveness to playback calls (a call of their mate versus a call of an unfamiliar conspecific). Both sexes learned to recognise mate calls during the pairing period. In males, but not females, mate calls evoked significantly fewer vocal responses than unfamiliar calls at one month after separation. Furthermore, in females, there was significantly greater molecular neuronal activation in response to mate calls compared to silence in the caudomedial mesopallium (CMM), a higher-order auditory region, in both brain hemispheres. In males, we found right-sided dominance of molecular neuronal activation in response to mate calls in the CMM. This is the first evidence suggesting sex differences in functional asymmetry of brain regions related to recognition of learned vocalisation in birds. Thus, sex differences related to recognition of learned vocalisations may be found at the behavioural and neural levels in avian vocal learners as it is in humans. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|