There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.
Abstract
Temporal gap detection thresholds were obtained for two species of birds, budgerigars
and zebra finches, which are known to have different auditory filter bandwidths. Both
species showed gap detection thresholds of about 2.5 msec for broadband noise stimuli.
Comparing octave bands of noise centered at 1, 3, and 5 kHz, zebra finches showed
the smallest gap thresholds for the noise band centered at 5 kHz whereas budgerigars
showed the smallest gap detection thresholds for the noise band centered at 3 kHz.
The results from zebra finches are generally consistent with filter theories of auditory
spectro-temporal perception whereas the result from budgerigars are not. In aggregate,
these comparative data suggest the relation between spectral and temporal resolving
power in these two species may involve different mechanisms.