Department of Physiology, Centre for the Neural Basis of Hearing, Downing Street, Cambridge CB2 3EG, United Kingdom.
J Acoust Soc Am. 2010 Mar;127(3):EL105-10. doi: 10.1121/1.3310196.
Simple reaction times (RTs) were used to measure differences in processing time between natural animal sounds and artificial sounds. When the artificial stimuli were sequences of short tone pulses, the animal sounds were detected faster than the artificial sounds. The animal sounds were then compared with acoustically modified versions (white noise modulated by the temporal envelope of the animal sounds). No differences in RTs were observed between the animal sounds and their modified counterparts. These results show that the fast detection observed for natural sounds, in the present task, could be explained by their acoustic properties.
简单反应时（RT）被用来测量自然动物声音和人工声音之间的处理时间差异。当人工刺激是短音脉冲序列时，动物声音比人工声音被检测得更快。然后，将动物声音与经过声学修饰的版本（通过动物声音的时间包络调制的白噪声）进行比较。在 RT 方面，动物声音与其修饰版本之间没有观察到差异。这些结果表明，在当前任务中，对自然声音的快速检测可以用其声学特性来解释。
