Figure 1: Túngara frog call components and conditional response to the chuck.
From: Relative comparisons of call parameters enable auditory grouping in frogs
(a) Spectrogram and time waveform of male call. (b) Demonstration of auditory grouping of a single whine and chuck. Squares are the exit angles from the circular arena for individual females. (Top) Responses to the chuck alone are not oriented. (Middle) Whines alone are necessary and sufficient to elicit directed phonotaxis. (Bottom) When a whine and chuck (with normal timing) are spatially separated up to 135°, females move to the chuck, indicating these two stimuli are perceived as a single object at the location of the chuck. Data are from a previous study30. Polar coordinates are the same in all figures and tables. C, location of a chuck; W, location of a whine.
