Language preference in the domestic dog (Canis familiaris)

Mallikarjun, Amritha; Shroads, Emily; Newman, Rochelle S.

doi:10.1007/s10071-022-01683-9

Cited by 2 publications

(3 citation statements)

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“…While dog attention is partially a judgment call on the part of the coder, it is consistent across coders. Results from prior HPP dog studies showed that inter-rater reliability is high (Mallikarjun et al 2019 , 2020 , 2022 ): using a Pearson’s correlation analysis, the three previous studies had correlation coefficients of 0.93, 0.91, and 0.88 between the first coder and second coder.…”

Section: Experiments 1: Name Recognition With Both Vocoded and Natura...mentioning

confidence: 98%

“…As discussed in Mallikarjun et al ( 2022 ), the dog coding process comes with some different challenges than infant coding; however, with practice, coders can easily determine when a dog is paying attention and looking at the proper location, and when the dog becomes bored and turns away. Unlike infants, dogs do not always like to look directly at the light on the side wall and tend instead to train their gaze anywhere on the wall where the speaker is located.…”

Section: Experiments 1: Name Recognition With Both Vocoded and Natura...mentioning

confidence: 99%

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Perception of vocoded speech in domestic dogs

Mallikarjun,

Shroads,

Newman

2024

Anim Cogn

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Humans have an impressive ability to comprehend signal-degraded speech; however, the extent to which comprehension of degraded speech relies on human-specific features of speech perception vs. more general cognitive processes is unknown. Since dogs live alongside humans and regularly hear speech, they can be used as a model to differentiate between these possibilities. One often-studied type of degraded speech is noise-vocoded speech (sometimes thought of as cochlear-implant-simulation speech). Noise-vocoded speech is made by dividing the speech signal into frequency bands (channels), identifying the amplitude envelope of each individual band, and then using these envelopes to modulate bands of noise centered over the same frequency regions – the result is a signal with preserved temporal cues, but vastly reduced frequency information. Here, we tested dogs’ recognition of familiar words produced in 16-channel vocoded speech. In the first study, dogs heard their names and unfamiliar dogs’ names (foils) in vocoded speech as well as natural speech. In the second study, dogs heard 16-channel vocoded speech only. Dogs listened longer to their vocoded name than vocoded foils in both experiments, showing that they can comprehend a 16-channel vocoded version of their name without prior exposure to vocoded speech, and without immediate exposure to the natural-speech version of their name. Dogs’ name recognition in the second study was mediated by the number of phonemes in the dogs’ name, suggesting that phonological context plays a role in degraded speech comprehension.

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Section: Experiments 1: Name Recognition With Both Vocoded and Natura...mentioning

confidence: 98%

Section: Experiments 1: Name Recognition With Both Vocoded and Natura...mentioning

confidence: 99%

Perception of vocoded speech in domestic dogs

Mallikarjun,

Shroads,

Newman

2024

Anim Cogn

Self Cite

View full text Add to dashboard Cite

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“…Playback experiments with human speech have shown that wild carrion crows respond more to speech than they do to playback of parakeet or pigeon calls (Schalz, 2023), responding significantly more often with flight behaviours when hearing speech. Other species, such as large-billed crows (Corvus macrorhynchos) (Schalz & Izawa, 2020) or domestic dogs (Canis familiaris) (Cuaya et al, 2022;Mallikarjun et al, 2022) respond differently to two different human languages following natural exposure, without needing explicit training or encouragement. Eavesdropping on speech could therefore be beneficial to wild crows by reducing the risk of coming too close to a potentially threatening human.…”

Section: Eavesdropping On Speechmentioning

confidence: 99%

Differential Survival In Carrion Crows Through Eavesdropping on Human Speech: An Agent-Based Model

Schalz

2023

Preprint

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Wild carrion crows eavesdrop on human speech and respond more strongly to it than to the calls of pigeons or parakeets. However, it remains unclear whether this behaviour provides any benefit to them, and if so, under which environmental conditions such a benefit could be expected. I used an agent-based model to examine the effect of eavesdropping on the survival of a carrion crow under different environmental conditions. The crow could gain points from foraging, but also had to avoid encounters with a human in order to not lose points. In addition to eavesdropping, it could visually scan the patch for human presence and, once detected, could keep track of the humans location. I found that eavesdropping led to higher final scores and higher rates of survival than visual scanning alone if the human density on the patch was elevated, or if there were visual obstacles reducing the accuracy of visual scans. Such environmental conditions are particularly common for urban crows foraging in areas such as public parks. The model provides a proof of concept for future empirical research into the potentially differential survival of urban crows eavesdropping on speech.

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Language preference in the domestic dog (Canis familiaris)

Cited by 2 publications

References 48 publications

Perception of vocoded speech in domestic dogs

Perception of vocoded speech in domestic dogs

Differential Survival In Carrion Crows Through Eavesdropping on Human Speech: An Agent-Based Model

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