Form Of Animal Communication Research Articles

Black-capped chickadees (Poecile atricapillus) discriminate between naturally-ordered and scramble-ordered chick-a-dee calls and individual preference is related to rate of learning

Though many forms of animal communication are not reliant on the order in which components of signals are combined to be effective, there is evidence that order does matter for some communication systems. In the light of differential responding to calls of varying note-order observed in black-capped chickadees in the field, we set out to determine whether chickadees recognize syntactically-ordered and incorrectly-ordered chick-a-dee calls as separate and distinct conceptual categories using both an auditory preference task and go/no-go operant conditioning paradigm. Results show that chickadees spent more time on the perch that did not produce sound (i.e., silent perch) than on either of the acoustic perches (i.e., natural and scrambled order chick-a-dee call playback) and visited the perch associated with naturally-ordered calls more often than the perch associated with scrambled-order calls. Birds in both the True natural- and scrambled-order call groups continued to respond according to the contingencies that they learned in Discrimination training, indicating that black-capped chickadees are capable of perceiving and acting upon the categories of natural- versus scrambled-ordered calls.

Demonstration and pantomime in the evolution of teaching and communication

The article begins with a presentation of the role of demonstration and pantomime in the evolution of teaching building on Gärdenfors and Högberg (2017). In comparison to different forms of animal communication, demonstration is voluntary, intentional, honest, and directed to one or a few individuals. Then the differences between demonstration and pantomime is analyzed. An important factor is that a pantomime can be detached, that is, can refer to entities that are not present or to other moments of time. A key section of the article concerns the extension of pantomime from its use in teaching to a more general communicative use. I present six factors – communicative sign function, degree of detachment, pragmatic form, represented action, perspective, and degree of pretence, which – following a principle of cognitive parsimony – all suggest that pantomime for teaching is evolutionarily older.

Relaying Aversive Ultrasonic Alarm Calls Depends on Previous Experience. Empathy, Social Buffering, or Panic?

Ultrasonic vocalizations are among the oldest evolutionarily forms of animal communication. In order to study the communication patterns in an aversive social situation, we used a behavioral model in which one animal, the observer, is witnessing as his cagemate, the demonstrator, is experiencing a series of mild electrical foot shocks. We studied the effect of the foot shock experience on the observer and the influence of a warning sound (emitted shortly before the shock) on USV communication. These experiments revealed that such a warning seems to increase the arousal level, which differentiates the responses depending on previous experience. This can be identified by the emission of characteristic, short 22 kHz calls of a duration below 100 ms. Two rats emitted calls that overlapped in time. Analysis of these overlaps revealed that in ‘warned’ pairs with a naive observer, 22 kHz calls were mixed with 50 kHz calls. This fact, combined with a high fraction of very high-pitched 50 kHz calls (over 75 kHz), suggests the presence of the phenomenon of social buffering. Pure 22 kHz overlaps were mostly found in ‘warned’ pairs with an experienced observer, suggesting a possible fear contagion with distress sharing. The results show the importance of dividing 22 kHz calls into long and short categories.

Mental Time Travel and language evolution: a narrative account of the origins of human communication

In this paper we propose a narrative account for the origin of language. Such a proposal is based on two assumptions. The first is conceptual and concerns the idea that the distinctive feature of human language (what sets it apart from other forms of animal communication) has to be traced to its inherently narrative character. The second assumption is methodological and connected to the idea that the study of language origin is closely related to the analysis of the cognitive systems at the base of narrative. Research on narrative abilities of subjects with Autism Spectrum Disorder has shown that storytelling requires the capability to link events causally connected to one another, and especially events which are remote from one another on the temporal axis of a story. Based on this research, we hypothesize that an important cognitive device involved in narrative is Mental Time Travel (MTT), that is, the system that allows humans to project themselves into the past and future. We show that such a system is present (to a greater or lesser extent) even in non-human animals. By virtue of this, we argue that MTT is independent of language and that it may be considered a cognitive precursor for the origin of language. Specifically, we propose that MTT allowed our ancestors to develop a form of pantomimic communication that might be considered as the foundation of the narrative origin of language.

Bioentropy, Aesthetics and Meta-dualism: The Transdisciplinary Ecology of Gregory Bateson

In this paper I am going to be dealing with Gregory Bateson, a theorist who is one of the founders of cybernetics, an acknowledged precursor of Biosemiotics, and in all respects highly transdisciplinary. Until his entry into cybernetics Bateson was an anthropologist and like anthropologists of his day, accepted a semantic approach to meaning through the classic work of Ogden and Richards and their thought-word-meaning triangle. Ogden and Richards developed their semantic triangle from Peirce, but effectively turned the Peircian semiotic triad into a pentad of addressors and addressees, to which Bateson added context and reflexivity through feedback loops. The emergence of cybernetics and information theory in the 1940s increased the salience of the notion of feedback yet, he argued, information theory had truncated the notion of meaning. Bateson’s discussion of the logical categories of learning and communication distinguished the difference between and ‘sign’ and ‘signal’. Cybernetic signaling was a form of zero‑learning; living systems were interpretative and engaged in several logical types of learning. Twenty years later he took up similar sorts of issues with regard to the new science of ecology which had framed systemic ‘entropy’ solely in thermodynamic terms and ignored communication and learning in living systems. His concept of Bioentropy is presented in section two of this paper as is its association with redundancy. Bioentropy, in turn, led to his offering an entirely new definition of information: “the difference that makes a difference.” The definition could apply to both human and non-human communication patterns, since some forms of animal communication could not undertake logical typing. Finally, he believed that his own systemic approach was insufficient for meta-dualism. He promoted the idea of an ecological aesthetics which needed to be sufficiently objective to deal with the many disruptions in its own recursive relations, yet subjective and self-reflexive in the manner of a creative epistemology. ‘Rigor’ and ‘imagination’ became Bateson’s meta-logical types and aesthetics his meta-dualism. He drew his inspiration from the aesthetics of R.G. Collingwood. By mediating scientific rigor with Collingwood’s ‘imaginary’ Bateson brought about his own conception of mediated ‘thirdness’—different from C.S. Peirce—but one which brought cultural ‘mind’ more closely into association with ‘the mind of nature’.

The behavioural mechanisms underlying temporal coordination in black-bellied wren duets

Duetting is a form of animal communication in which two individuals produce temporally coordinated vocal signals. Describing the individual-level patterns of behaviour that structure duets is an integral step towards understanding the adaptive function(s) of duet participation. We investigated the fine scale timing of duet contributions in male and female black-bellied wrens, Pheugopedius fasciatoventris, by analysing recorded duets and by stimulating birds to ‘duet’ with recorded songs in the field. Previous research on this species revealed that most duets consist of alternating male and female phrases, and that females abide by individually distinctive ‘duet codes’, which link each male phrase type with a specific answer from the female's repertoire. In the present analysis, we found that the timing of male duet phrases was primarily influenced by the time that the prior female phrase began, and secondarily influenced by an internal tempo. Female phrase timing, however, was most strongly influenced by the time that the prior male song ended, and secondarily influenced by the female's internal tempo. The average answering time for both sexes was less than 0.08 s before the end of the mate's prior phrase. Coordination at the beginning of the duet appears to limit duet length; duets with large gaps or overlapping phrases were always short. We conclude that both sexes make ‘on-the-spot’ adjustments in timing that function to minimize gaps and overlap between duet phrases. Overall, our results are consistent with the hypothesis that well-coordinated duets benefit both partners by communicating that their shared territory will be defended by a high-quality defensive coalition.

Recursion, Language, and Starlings

It has been claimed that recursion is one of the properties that distinguishes human language from any other form of animal communication. Contrary to this claim, a recent study purports to demonstrate center-embedded recursion in starlings. I show that the performance of the birds in this study can be explained by a counting strategy, without any appreciation of center-embedding. To demonstrate that birds understand center-embedding of sequences of the form A(n) B(n) (such as A(1) A(2) B(2) B(1) , or A(3) A(4) A(5) B(5) B(4) B(3) ) would require not only that they discriminate such patterns from other patterns, but that they appreciate that elements must be bound from the outside in (thus, in the above examples, A(1) B(1) , A(2) B(2) , A(3) B(3) , A(4) B(4) , A(5) B(5) are bound pairs). This has not been shown in nonhuman species, and sentences with this structure are difficult even for humans to parse. There appears to be no evidence to date that nonhuman species understand recursion.

Human language and our reptilian brain: the subcortical bases of speech, syntax, and thought

This work is an entry into the fierce current debate among psycho-linguists, neuroscientists, and evolutionary theorists about the nature and origins of human language. A prominent neuroscientist here takes up the Darwinian case, using data seldom considered by psycho-linguists and neuro-linguists to argue that human - though more sophisticated than all other forms of animal communication - is not a qualitative different ability from all forms of animal communication, does not require a quantum evolutionary leap to explain it, and is not unified in a single language instinct. Using clinical evidence from speech-impaired patients, functional neuro-imaging, and evolutionary biology to make his case, Philip Lieberman contends that human is not a single separate module but a functional neurological system made up off many separate abilities. Language remains as it began, the author argues: a device for coping with the world. But in a blow to human narcissism, he makes the case that this most remarkable human ability is a by-product of our remote reptilian ancestors' abilities to dodge hazards, seize opportunities, and live to see another day.

On the evolution of language and generativity

One of the properties that most conspicuously distinguishes human language from any other form of animal communication is generativity. Language with this property therefore presumably evolved with the Homo line somewhere between H. habilis and H. sapiens sapiens. Some have suggested that it emerged relatively suddenly and completely with H. sapiens sapiens, and this view is consistent with (a) linguistic estimates as to when vocal language emerged, (b) the relatively late “explosion” of manufacture and cultural artifacts such as body ornamentation and cave drawings, and (c) evidence on changes in the vocal apparatus. However, evidence on brain size and developmental patterns of growth suggests an earlier origin and a more continous evolution. I propose that these scenarios can be reconciled if it is supposed that generative language evolved, perhaps from H. habilis on, as a system of manual gestures, but switched to a predominantly vocal system with H. sapiens sapiens. The subsequent “cultural explosion” can then be attributed to the freeing of the hands from primary involvement in language, so that they could be exploited, along with generativity, for manufacture, art, and other activities.