Feinkohl Arne, Klump Georg
Department for Animal Physiology & Behaviour, C.v.O University Oldenburg, PO Box 2503, D-26111 Oldenburg, Germany.
Vision Res. 2011 Jan;51(1):21-5. doi: 10.1016/j.visres.2010.09.020. Epub 2010 Sep 25.
The double-pulse resolution (DPR) measures the processing performance for transient visual signals as the threshold duration for detecting a temporal gap between two light flashes in relation to gap duration. The DPR of four European starlings (Sturnus vulgaris) and four humans was measured in an operant Go/NoGo procedure. We applied the method of constant stimuli and determined thresholds using signal-detection theory. The starling DPR (22.2 ms±2.3 ms SE) was significantly shorter than human DPR (35.2 ms±1.3 ms SE; p<0.01, t-test). The difference suggests that starlings have a higher temporal resolution for transient visual signals than humans.
双脉冲分辨率（DPR）通过检测两个闪光之间时间间隔的阈值持续时间来衡量对瞬态视觉信号的处理性能，该阈值持续时间与间隔持续时间相关。在操作性的“是/否”程序中测量了四只欧洲椋鸟（家八哥）和四个人的DPR。我们采用了恒定刺激法，并使用信号检测理论确定阈值。椋鸟的DPR（22.2毫秒±2.3毫秒标准误）明显短于人类的DPR（35.2毫秒±1.3毫秒标准误；p<0.01，t检验）。这种差异表明，椋鸟对瞬态视觉信号的时间分辨率比人类更高。
