Interaction Studies - Volume 18, Issue 1, 2017

Understanding whether the long and elaborate songs of male gibbons (Hylobates muelleri) have syntax and hierarchical structures (chunks) is an interesting question in the evolution of language, because gibbons are near humans in the phylogenetic tree and a hierarchically organized syntax is considered to be a basic component of human language. We conducted field research at Danum Valley Conservation Area in northern Borneo to test the hypothesis that gibbon songs have syntax and chunks. We followed one Mueller’s gibbon group for 1 week in the dry and rainy seasons every year from 2001 to 2009, collecting vocal and behavioral data. Results show that songs emitted by the studied male gibbon were governed by combinatory rules. Some context-dependent songs had different combinatory rules, although they overlapped with the songs whose contexts were uncertain. The male Mueller’s songs had characteristics that suggest existence of chunk structure. These results provided an important perspective in the study of language origin.

Social and ecological research and theory are used to elaborate and enrich two important sets of accounts of language origins. One is the interdependence and shared intentionality hypothesis (e.g., Tomasello, 2014a ) of the ways in which humans became cooperative and conforming in ways that other apes did not, eventually leading to language. A second set of accounts addresses the emergence of bipedalism and its connections to language and to many other anatomical, cognitive, and social features that are distinctive in humans. Particular attention is given to the carrying and caretaking of infants. Research and theory challenging common assumptions about the role of conformity in cooperation and conversation are reviewed and integrated into these accounts. Together these varying perspectives point toward a more dialogical, dynamic, and distributed understanding of social interactions and the values that motivate and constrain humans’ social and linguistic skills.

This study provides new longitudinal evidence on two major types of gesture–speech combination that play different roles in children’s early language. We analysed the spontaneous production of 10 Italian children observed monthly from 10–12 to 23–25 months of age. We evaluated the extent to which the developmental trends observed in children’s early gesture–word and word–word productions can predict subsequent verbal abilities. The results indicate that “complementary” and “supplementary” gesture–speech combinations predict subsequent language development in a different manner: While the onset of “supplementary” combinations predicts the onset of two-word combinations, the use of “complementary” combinations at 12 and 18 months predicts the vocabulary and the ability to produce more words utterances at 2 years of age. Moreover, the results suggest that both “complementary” and “supplementary” crossmodal combinations are good predictive indexes of early verbal skills during the second year of age.

I tested the hypothesis that, in infant-mother-sibling interactions, infants with older siblings aged 11 to 24 months produce deictic gestures when they are proximal to, or engaging in joint attention with, their mothers more frequently than same-aged infants without siblings. Fifteen infant-mother dyads and 10 infant-mother-sibling triads were individually observed for 15 minutes in a playroom full of toys. Infants involved in infant-mother-sibling interactions produced more deictic gestures when they were proximal to their mothers than infants in infant-mother interactions. Further, infants involved in infant-mother-sibling interactions accompanied their gestures with vocalizations at a higher rate than infants in infant-mother interactions. This result suggests that infants with older siblings monitor their mothers more carefully in interactions in which their sibling is also present, and that they produce deictic gestures in order to effectively elicit joint action with their mothers.

Motivation crucially influences the willingness to play online games. Game motivation can affect players’ flow experience and player’s companionship with their game roles or avatars. However, the relationship among game motivation, flow experience, and companionship is unclear; therefore, designing online games that improving the playing experience is difficult. This study chose online pet games as study samples, and this study used a game motivation scale, flow experience scale, and the Companionship Scale of Artificial Pets to identify the relationship among game motivation, flow experience, and companionship. According to 216 valid questionnaire responses, this study demonstrated that (a) game motivation for online pet game players was primarily immersion and achievement, (b) compared with achievement motivation, immersion motivation had a greater influence on flow experience and the development of player companionship with online pets, and (c) players with immersion and achievement motivation had a substantially enhanced flow experience and companionship with their online pets.

This paper explores the impact of group affiliation with respect to the on-line processing and appreciation of jokes, using facial electromyography (EMG) activity and offline evaluations as dependent measures. Two experiments were conducted in which group affiliation varied between the participant and each of two independent (recorded confederate) speakers whose described political profiles were distinguished through one word: “Right” versus “Left.” Experiment 1 showed that jokes were more highly evaluated and that associated EMG activity was more intense when it was later determined that the speaker was a member of the listener’s ingroup rather than outgroup. In an effort to determine whether these parochial effects can be isolated to ingroup favoritism as opposed to outgroup derogation, Experiment 2 paired a joke-teller described as politically active (either from the right or the left) with one who was described as politically neutral. These more subtle comparisons suggest that the parochial effects observed in our joke understanding paradigm are mediated, at least in part, by the presence of an outgroup member.

Indirect speech is a remarkable trait of human communication. The present paper tackles the sociobiological underpinnings of communicative indirectness discussing both socio-interactional and cognitive rationales behind its manifestation in discourse. From a social perspective, the use of indirect forms in interactions can be regarded as an adaptive response to the epistemic implications of transacted new information in small primary groups, representing – in Givón’s terms – our “bio-cultural” descent. The design features of indirect strategies today may therefore be explained in terms of a form-function mapping in which indirect communicative expressions allowed a “safer” transaction of contents and a more cooperative attitude of speakers in both face-to-face and public contexts of communication. The unchallengeability effects notably induced by underencoded meanings have now received extensive experimental backing, unveiling intriguing underlying cognitive mechanisms such as the well-known cognitive illusions or fallacies.