Hearing and vocalizations in the orange-fronted conure (Aratinga canicularis).
Hearing and vocalizations in the orange-fronted conure (Aratinga canicularis).
复制标题
橙额锥尾鹦鹉 (Aravinga canularis) 的听力和发声。
DOI：
10.1037/0735-7036.117.1.87
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Dooling,RobertJ
中科院分区：
文献类型：
--
作者：
Wright,TimothyF;Cortopassi,KathrynA;Bradbury,JackW;Dooling,RobertJ
研究了桔额锥尾鹦鹉（Aratingacanicularis）的听觉灵敏度与其发声的频谱特征的关系。利用心理声学技术获得纯音的绝对阈值、掩蔽阈值、频差阈值和强度差阈值。一般来说，听觉能力与许多鸟类的听觉通才相似。一个例外是在2.0和4.0 kHz之间的异常低的临界比率（掩蔽阈值），类似于先前在虎皮鹦鹉（Melopsittacus undulatus）中发现的临界比率。这些听觉灵敏度进行了比较，平均频谱（a）接触呼叫和（B）的一般样本的发声记录从野生鸟类。最大的声音能量和最好的听觉灵敏度的频谱区域之间的2.0和5.0 kHz。
The auditory sensitivities of the orange-fronted conure (Aratinga canicularis) were examined in relation to the spectral characteristics of its vocalizations. Absolute thresholds, masked thresholds, frequency difference limens, and intensity difference limens for pure tones were obtained using psychoacoustic techniques. In general, hearing abilities are similar to those found in many avian auditory generalists. One exception is the unusually low critical ratio (masked threshold) between 2.0 and 4.0 kHz, similar to that previously found in the budgerigar (Melopsittacus undulatus). These auditory sensitivities were compared with average spectra for (a) contact calls and (b) a general sample of vocalizations recorded from wild birds. The spectral regions of both greatest vocal energy and best auditory sensitivity were between 2.0 and 5.0 kHz.