Results 161 to 170 of about 7,096 (199)
Some of the next articles are maybe not open access.
An intentional vocalization draws others’ attention: A playback experiment with wild chimpanzees
Animal Cognition, 2014A vital step in the evolution of language is likely to have been when signalers explicitly intended to direct recipients' attention to external objects with the use of referential signals. Although animal signals can direct the attention of others to external events, such as in monkey predator alarm calls, there is little evidence that this is the ...
Crockford Catherine +2 more
openaire +3 more sources
Behavioural effects of persistent human disturbance: a playback experiment in a forest bird
Ecology LettersIncreasing human presence and activities expose wild animals to persistent disturbances. Disturbed populations often become tolerant towards humans, although the underlying mechanisms are poorly understood. We used playback experiments to manipulate perceived level of human disturbance in great tits (Parus major).
András Liker +7 more
openaire +2 more sources
How vervet monkeys perceive their grunts: Field playback experiments
Animal Behaviour, 1982Abstract Free-ranging vervet monkeys grunt to each other in a variety of social situations: when approaching a dominant or subordinate individual, when moving into a new area of their range, or when observing another group. Like other non-human primate vocalizations, these grunts have traditionally been interpreted as a single, highly variable call ...
Dorothy L. Cheney, Robert M. Seyfarth
openaire +1 more source
Guinea pig responses to conspecific vocalizations: Playback experiments
Behavioral and Neural Biology, 1981Eight playback experiments are described in which guinea pigs (Cavia porcellus) were individually observed while a tape recording of various guinea pig vocalizations was played. The behavior of subjects was also observed in a silent control test, and in response to nonvocal sounds of varying frequencies.
openaire +1 more source
A First Assessment of Birdnet Performance at Varying Distances: A Playback Experiment
Ardeola, 2023Bird vocalisations, like any other acoustic signals, attenuate over distance, and therefore their structure degrades progressively. Such degradation may have an impact on the ability of automated signal recognition software, to detect and correctly identify bird vocalisations.
openaire +2 more sources
Experiments with electron scanning for magnetic recording and playback of video
IEEE Transactions on Audio, 1963Present day video tape uses high speed mechanical scanning, with rapid wear of tape and heads. Electron beam scanning is proposed to eliminate mechanical problems and to allow the use of low cost tape. Development work has been conducted on a recording tube using a high density sheet beam to energize a simplified 500 element magnetic head. For playback
openaire +1 more source
Enduring effects of videotape playback experience on family and marital relationships.
American Journal of Orthopsychiatry, 1969The playback of videotape recordings made during a therapy session provides a new therapeutic tool. Participants begin to grasp better the context and complexities of human interactions. Sharing this data with therapists leads patients to a more democratic therapeutic interaction, with implications for more democratic functioning in the families ...
I, Alger, P, Hogan
openaire +2 more sources
THE VIFA 1" NEODYMIUM TWEETER: A VERSATILE SPEAKER FOR PLAYBACK EXPERIMENTS
Bioacoustics, 1997Adfærd, kommunikation ...
Larsen, O.N., Dabelsteen, Torben
openaire +1 more source
Functional referents and acoustic similarity: field playback experiments with rhesus monkeys
Animal Behaviour, 1998Rhesus monkeys, Macaca mulatta, on the island of Cayo Santiago, Puerto Rico produce one or more of five acoustically distinctive calls when they find food. Three of these calls ('warbles', 'harmonic arches' and 'chirps') are produced by individuals finding high-quality, rare food items, whereas the other two calls ('coos' and 'grunts') are produced ...
openaire +2 more sources
Are domestic chickens born with predator recognition? Validation of a sound playback experiment
Behavioural ProcessesPredation risk can influence behavioral decisions of animals in various ways. Prey animals have the opportunity to choose antipredation behaviors and escape strategies only by quickly and accurately identifying predators. As precocial birds, domestic chickens (Gallus gallus domesticus) have no adaptation period after hatching and must immediately ...
Li, Zhang, Zihui, Zhang, Wei, Liang
openaire +2 more sources