| Affiliation: | 1.School of Life Sciences,Northeast Normal University,Changchun,China;2.Laboratory of Visual Information Processing,Center for Brain and Cognitive Sciences, Institute of Biophysics, Chinese Academy of Sciences,Beijing,China;3.College of Life Sciences,South China Normal University,Guangzhou,China;4.School of Life Sciences,Liaoning Normal University,Dalian,China |
| Abstract: | High vocal center (HVC) can produce single sound with one or two syllables by the single-type vocal control pattern in songbirds ruddy bunting (Emberiza rutila). It obviously shows left-side dominance in controlling double syllables, principal frequency (PF) and increasing sound intensity of the evoked calls. Meanwhile, the complex-type control pattern can produce complex calls with multisyllable, and also shows significant left-side dominance in controlling the number of syllables, tone changing and sound intensity. These indicate that left-side HVC controls higher frequency and complicated sentence structure. The basic vocal center, dorsomedial nucleus of the intercollicular complex (DM), controls the monosyllable sound in songbirds, and shows left-side dominance in controlling both the number of syllable and sound intensity. These results not only provide some direct evidence for left-side dominance in high vocal center, but also indicate that there is some internal connection between the high and basic vocal centers in songbirds. |
