Animals and human language There are a lot of stories about creatures that can talk. We usually assume that they are fantasy (vision) or fiction (invented story) or that they involve birds or animals simply imitating something they have heard humans say We know that creatures are capable of communicating, certainly with other members of their own species. Is it possible that a creature could learn to communicate with humans using language? Or does human language have properties that make it so unique that it is quite unlike any other communication system and therefore, it cannot be learned by any other creature?
Animals and human language To answer these questions, we will first consider: Some special properties of human language. review a number of experiments in communication involving humans and animals. Communicative and informative signals Specifically
communicative signals Vs unintentionally informative signals. Communicative and informative signals Informative signals Someone listening to you may become informed about you through a number of signals that you have not intentionally sent. She may note that You have a cold (you sneezed) You arent at ease (you shifted around in your seat)
You are disorganized (non-matching socks) You are from some other part of the country (you have a strange accent) Communicative and informative signals Communicative signals You are normally considered to be intentionally communicating something. When you use language to tell this person, Id like to apply for the vacant position of senior brain surgeon at the hospital,
Communicative and informative signals So, when we talk about distinctions between human language and animal communication, we are considering both in terms of their potential as a means of intentional communication. Properties of human language There
are five properties of human language makes it such a unique communication system These properties make it quite different from the other communication system of other creatures Displacement It allows language users to talk about things and events not present in the immediate environment. It allows us to talk about things and places (e.g.
angels, fairies, Santa Claus, Superman, heaven, hell) whose existence we cannot even be sure of. Animal communication is generally considered to lack this property. Animal communication seems to be designed exclusively for this moment, here and now. Bee communication may have the property of displacement Arbitrariness Arbitrariness There is no natural connection between a linguistic form and its meaning. The connection is quite arbitrary (random).
There are some words in language with sounds that seem to echo the sounds of objects or activities and hence seem to have a less arbitrary connection. Examples: cuckoo, crash, slurp, boom. However, these onomatopoeic words are relatively rare in human language. Arbitrariness Animal communication (non- arbitrary) For the majority of animal signals, there does appear to be a clear connection between the conveyed message and the signal used to convey it. For any animal, the set of signals used in communication is finite. That is, each variety of
animal communication consists of a fixed and limited set of vocal or gestural forms. Many of these forms are only used in specific situations Example: (establishing territory) and at particular times (e.g. during the mating season). Productivity Productivity (or creativity or open-endedness) Humans are continually creating new expressions and novel utterances by manipulating their linguistic resources to describe new objects and situations. The potential number of utterances in any human language
is infinite. . The communication systems of other creatures do not appear to have this type of flexibility, nor does it seem possible for creatures to produce new signals to communicate novel experiences or events. Example: Vervet monkeys have thirty-six vocal calls. Bee communication This limiting feature of animal communication is described in terms of fixed reference. Productivity Fixed
reference . Each signal in the system is fixed as relating to a particular object or occasion. Example: Among the vervet monkeys repertoire, there is one danger signal CHUTTER, which is used when a snake is around Cultural transmission Cultural transmission Language is passed on from one generation to the next.
While we may inherit physical features such as brown eyes and dark hair from our parents, we do not inherit their language. We acquire a language in a culture with other speakers and not from parental genes. Example; An infant born to Korean parents in Korea, but adopted and brought up from birth by English speakers in the United States, will have physical characteristics inherited from his or her natural parents, but will inevitably speak English. A kitten, given comparable early experiences, will produce meow regardless. Cultural transmission It
is clear that humans are born with some kind of predisposition to acquire language in a general sense. However, we are not born with the ability to produce utterances in a specific language such as English. We acquire our first language as children in a culture. Human infants, growing up in isolation, produce no instinctive language. Cultural transmission of a specific language is crucial in the human acquisition process.
Duality With a limited set of discrete sounds, we are capable of producing a very large number of sound combinations (e.g. words) which are distinct in meaning. Human language is organized at two levels or layers simultaneously (at once). This property is called duality (or double articulation). Example: In speech production, at one level, we have distinct sounds, and, at another level, we have distinct meanings. We have a physical level at which we can produce individual sounds, like n, b and i. As individual sounds, none of these separate forms has any intrinsic or natural meaning. In a particular combination such as bin, we
have another level producing a meaning that is different from the meaning of the combination in nib. Duality This duality of levels is, in fact, one of the most economical features of human language because, with a limited set of discrete sounds, we are capable of producing a very large number of sound combinations (e.g. words) which are distinct in meaning. Among other creatures, each communicative signal appears to be a single fixed form that cannot be broken
down into separate parts. Talking to animals Can non-humans understand human language? o NO The standard explanation is that the animal produces a particular behavior in response to a particular sound-stimulus or noise, but does not actually understand what the words in the noise mean It is less likely that animal would be capable of producing human language.
Chimpanzees and language Gua In the 1930s, an infant chimpanzee called Gua was raised with a human infant. Gua, was reported to be able to understand about a hundred words, but did not say any of them. Chimpanzees and language Viki In
the 1940s, a chimpanzee named Viki was reared by scientist couple in their own home, exactly as if she was a human child. These foster parents spent five years attempting to get Viki to say English words by trying to shape her mouth as she produced sounds. Viki eventually managed to produce some words, rather poorly articulated versions of mama papa and cup Chimpanzees and language In retrospect, this was a remarkable achievement since it has become clear that non-human
primates do not actually have a physically structured vocal tract which is suitable for articulating the sounds used in speech. Apes and gorillas can, like chimpanzees, communicate with a wide range of vocal calls, but they just cant make human speech sounds. Washoe washoe Female chimpanzee called Wachoe was taught a version of American Sign Language. This sign language has all the essential properties of human language
and is learned by many deaf children as their natural first language. In a period of three and a half years, Washoe came to use signs for more than a hundred words, ranging from airplane, baby and banana through to window, woman and you. Even more impressive was Washoes ability to take these forms and combine them to produce sentences of the type more fruit. Some of the forms appear to have been inventions by Washoe, as in her novel sign in the combination water bird (referring to a swan), which would seem to indicate that her communication system had the potential for productivity. Washoe also demonstrated understanding of a much larger number of signs than she produced and was capable of holding basic conversations, mainly in the form of questionanswer sequences. Similar conversational ability with sign language was reported for a gorilla named Koko not long after.
Sara and Lana The controversy Kenzi The barest rudiments of language Important lessons have been learned from attempts to teach chimpanzees how to use forms of language. We have answered some questions. Were
Washoe and Kanzi capable of taking part in interaction by using a symbol system chosen by humans and not chimpanzees? The answer is clearly Yes. Did Washoe and Kanzi perform linguistically on a level comparable to a human child of the same age? The answer is just as clearly No. The barest rudiments of language In addition, one of the most important lessons for those who study the nature of language is the realization that: Although we can describe some key properties of
language, we clearly do not have a totally objective and non controversial definition of what counts as using language. We assume that when young human children make language-like noises we are witnessing language development, but when young chimpanzees produce language-like signs in interaction with humans, many scientists are very unwilling to classify this as languageuse. The criteria we use in each case do not seem to be the same. The barest rudiments of language
This problem remains, as does the controversy among different psychologists and linguists over the reported abilities of chimpanzees to use language. However, given the mass of evidence from these studies, we might suggest that the linguist Noam Chomsky (1972) should revise his claim that acquisition of even the barest rudiments of language (The basic essentials of language) is quite beyond the capacities of an otherwise intelligent ape.
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