It's not bait for change, like Niestat's other films, but we'll eat all the hats in the office if "92-year-old Tap Dancer" doesn't inspire some spontaneous calls to grandmas.
We were careful to avoid placing the mount where it would be directly visible to the bird, as this might interfere with spontaneous calling activity.
Based on the analysis of spontaneous calling behavior, we decided to use six sequences with stimulus delivery intervals of 5000, 2500, 1250, 625, 313, and 156 ms. Each sequence consisted of two calls originating from different male individuals (Figure 3) and were randomly intermixed: one was presented 900 times ('common call') and the other one 100 times ('rare call').
As hypothesized, provoked calls were longer in duration, had wider bandwidths, and an increased number of harmonics than spontaneous calls (Fig. 5B D).
However, these spontaneous calls were unlikely to be responsible for the differences in depression resolution, given that the internet alone group also showed drops in depression levels.
Previous examinations (unpublished data) of spontaneous calling interactions in zebra finch groups revealed that a large proportion of vocalisations occurring within a few seconds of another bird's calls in fact occurred within half a second.
Shared use in some locations could be an important constraint if mobile phones are to be used to convey health information since two-way communication in a shared system is difficult as a non-owning user can make outgoing calls but cannot receive spontaneous calls [ 4].
Would you like to talk to your Twitter friends or set up a spontaneous conference call?
Midwives occasionally make a spontaneous telephone call to women for whom they feel some kind of concern.
Finally, a chance to turn the page on contemptible name-calling, to celebrate the act of spontaneous play-calling.
