Chicken food calls are functionally referential

Evans, Christopher S.; Evans, Linda

doi:10.1006/anbe.1999.1143

Cited by 158 publications

(136 citation statements)

References 40 publications

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“…Finally, in addition to their acoustically different alarm calls for ground and aerial predators , domestic chickens, Gallus gallus domesticus, produce food calls that signal the presence of food. Once again, playback experiments indicate that listeners acquire this information from the calls (Evans & Evans 1999.…”

Section: Information In Animal Communicationmentioning

confidence: 92%

“…Chickens, for example, respond in very different ways to food calls and to ground predator alarm calls even though the calls have similar acoustic characteristics (Evans & Evans 1999). They also respond differently to the same food call depending on whether they already know about the presence of food (Evans & Evans 2007).…”

Section: Calls With Similar Acoustic Features Can Elicit Different Rementioning

confidence: 99%

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The central importance of information in studies of animal communication

et al. 2010

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Keywords:animal communication animal signal information information transmission language meaningThe concept of information plays a central role in studies of animal communication. Animals' responses to the calls of different individuals, to food calls, alarm calls, and to signals that predict behaviour, all suggest that recipients acquire information from signals and that this information affects their response. Some scientists, however, want to replace the concept of information with one based on the 'manipulation' of recipients by signallers through the induction of nervous-system responses. Here we review both theory and data that argue against hypotheses based exclusively on manipulation or on a fixed, obligatory link between a signal's physical features and the responses it elicits. Results from dozens of studies indicate that calls with 'arousing' or 'aversive' features may also contain information that affects receivers' responses; that acoustically similar calls can elicit different responses; acoustically different calls can elicit similar responses; and 'eavesdropping' animals respond to the relationship instantiated by signal sequences. Animal signals encode a surprisingly rich amount of information. The content of this information can be studied scientifically.

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Section: Information In Animal Communicationmentioning

confidence: 92%

Section: Calls With Similar Acoustic Features Can Elicit Different Rementioning

confidence: 99%

The central importance of information in studies of animal communication

et al. 2010

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“…Si durante mucho tiempo el único (y sorprendente) ejemplo de comunicación claramente referencial fue la danza de las abejas (von Frisch, 1967;Dyer, 2002), a partir de la década de 1980 se fue ampliando el elenco de sistemas comunicativos animales triádicos, dotados de referencialidad, que aluden a objetos del mundo como predadores (Griesser, 2008;Manser et al, 2002;Seyfarth et al, 1980;Slobodchikoff et al, 2009) o comida (Bugnyar et al, 2001;Evans y Evans, 1999;Evans y Evans, 2007; para un repaso de estos sistemas, cf. Longa, 2013).…”

Section: Discusión Críticaunclassified

Los sistemas combinatorios animales no tienen dualidad: Hockett tenía razón

Martínez¹

2015

Pragmalinguistica

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RESUMEN:La dualidad o doble articulación es una propiedad fundamental del lenguaje. Hace medio siglo, Charles Hockett comparó la comunicación animal y el lenguaje con su conocido sistema de rasgos de diseño, y sostuvo que la dualidad era uno de los pocos rasgos ausentes en la comunicación animal. Desde entonces, numerosos autores, en especial lingüistas, han atribuido esa propiedad a algunos sistemas comunicativos animales que muestran una naturaleza combinatoria, en los cuales las señales se forman mediante la unión de unidades menores. Este artículo analiza críticamente esas propuestas; en concreto, defiende que la naturaleza jerárquico-combinatoria de esos sistemas es muy diferente a la del lenguaje, por lo que carecen de dualidad. Por ello, el trabajo reivindica la posición de Hockett, sosteniendo que estaba plenamente acertado cuando defendía que la dualidad es un rasgo inexistente en la comunicación animal. ABSTRACT:Duality of patterning is a central property of language. Half a century ago, Charles Hockett compared animal communication and language by means of his well-known system of design features, and contended that duality was one of the few features animal communication was not endowed with. Since then, a number of scholars (especially, linguists), have considered duality to exist in some animal communication systems which exhibit a combinatorial nature, in such a way that signals are composed of smaller units. This article critically discusses those proposals; more concretely, it makes the point that the hierarchical-combinatorial procedure found in animal combinatorial systems greatly differs from that found in language, the result being that those systems lack duality. Therefore, the paper vindicates Hockett's position, by arguing that he was fully right when he asserted that duality is absent from animal communication. RÉSUMÉ:La double articulation est une qualité fondamentale du langage. Il y a un demi-siècle, Charles Hockett a comparé la communication animale et le langage avec son système de traits de dessin, et a soutenu que la dualité était l'une des quelques fonctionnalités manquantes dans la communication animale. Dès lors, de nombreux auteurs, notamment des linguistes, ont attribué cette qualité à certains systèmes de communication des animaux montrant une nature combinatoire, dans lesquels les signaux sont formés par l'assemblage d'unités mineures. Cet article analyse ces propositions de façon critique; en particulier, il soutient l'argument que la nature hiérarchique-combinatoire de ces systèmes diffère considé-rablement de celle du langage, ne possédant pas de double articulation. Par conséquent, ce travail justifie la position de Hockett, considérant qu'il avait tout à fait raison lorsqu'il soutenait que la double articulation est une caractéris-tique absente dans la communication animale.PALABRAS CLAVES: dualidad o doble articulación; pleremas y cenemas; comunicación animal; sistema jerár-quico-combinatorio; referencialidad.KEY WORDS: duality of patterning; pleremes and cenemes; ani...

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“…While contextually defined comprehension requires understanding of other"s goals and intentions, semantic comprehension may reflect conditioned, automatic responses, with little cognitive processing involved (Tomasello, 2008). For instance, semantic comprehension has been shown in the vocal domain across a wide variety of species such as chickens (Evans and Evans, 1999), prairie dogs (Slobodchikoff et al, 1991) and marmots (Boero, 1992 (Tomasello et al, 1985, Tomasello et al, 1984, 50% in bonobos (Pika et al, 2005b), 72% in gorillas (Pika et al, 2003) and 80% in orang-utans (Liebal et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Usage and comprehension of manual gestures in wild chimpanzees

2012

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An important element in understanding the evolutionary origin of human language is to explore homologous traits in cognition and communication between primates and humans (Burling, 1993, Hewes, 1973. One proposed modality of language evolution is that of gestural communication, defined as communicative movements of hands without using or touching objects (de Waal, 2003). While homologies between primate calls and language have been relatively well explored, we still have a limited understanding of how cognitive abilities may have shaped the characteristics of primate gestures (Corballis, 2003). In this Ph.D. research, I investigated the cognitive skills underlying gestural communication in both wild and language trained chimpanzees, with a special focus on the repertoire and the intentionality of production and comprehension. The study of cognitive skills underlying the production of the repertoire and the role of intentionality is important because these skills are cognitively demanding and are a prerequisite in human infants for their ability to acquire language (Baldwin, 1995, Olson, 1993. My research suggests that chimpanzee gestural communication is cognitively complex and may be homologous with the cognitive skills evident in pre-verbal infants on the cusp of language acquisition.Chimpanzees display a multifaceted and complex signal repertoire of manual gestures. These gestures are the prototypes, within which there is variation, and between which the iv boundaries are not clear-cut, but there is gradation apparent along several morphological components. Both wild and language trained chimpanzees communicate intentionally about their perceived desires and the actions that they want the recipients to undertake. They do not just express their emotions, but they communicate flexibly by adjusting their communicative tactics in response to the comprehension states of the recipient. Whilst chimpanzees communicate their intentions flexibly, the messages conveyed are specific. However, recipients comprehend gestures flexibly in light of the signaller"s overall intentions.Whilst wild and language trained chimpanzee gestural communication revealed similar cognitive characteristics, language trained chimpanzees outperformed wild apes in that they had ability to use signals which made distinctions that human deictic words can make. Whilst these differences between wild and language trained chimpanzees may be due to the different methodological approaches used, it is conceivable that language training may have influenced captive ape cognitive skills in the representational domain. These results from wild and language trained chimpanzees indicate that chimpanzees possess some form of cognitive skills necessary for language development and that cognitive skills underlying repertoire and use in chimpanzees are a shared capacity between humans, other apes and a common ancestor. These findings render theories of the gestural origins of language more plausible.v

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Chicken food calls are functionally referential

Cited by 158 publications

References 40 publications

The central importance of information in studies of animal communication

The central importance of information in studies of animal communication

Los sistemas combinatorios animales no tienen dualidad: Hockett tenía razón

Usage and comprehension of manual gestures in wild chimpanzees

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