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In this talk, we propose an account of the evolution of language that builds on the hypothesis of human self-domestication (HSD), arguing that the evolution of one of the hallmarks of communication, i.e., conversational abilities, is strongly linked to the reduction of reactive aggression, one of the characteristic features and one of the triggering factors of HSD. Our argument rests on two steps: to argue in favor of a continuity of animal proto-conversation (PC) with modern human conversation; to show that the analysis of how PC of human infants develop into sophisticated conversational skills, in part from changes in the management of aggression/emotions, can shed light on how full-fledged conversational abilities emerged from PC in modern humans under HSD forces. Overall, we argue for a gradual transition from PC to full-fledged conversation under the gradual increase of HSD features in our species.

This paper relies on the idea that human language evolved to modify/change the beliefs and attitudes of other people, in order to make them act in a certain way. Such an idea is in line with a more general model of animal communication, which sees it as a way to influence others’ behaviors. Although forms of persuasion are present in non-human communication, it is suggested that, in the transition from animal communication to language, humans developed a specific and more powerful way to influence others: the telling of stories. Looking at the cognitive architectures and the expressive systems which allowed our ancestors to cope with the selective pressures of a narrative-based communication, it is proposed that pantomime was the early means of expression of narrative persuasion. From this point of view, pantomime represented a form of protolanguage, providing a platform for the progressive development of modern-day narrative.

The aim of this paper is twofold: to propose that conversation is the distinctive feature ofHomo sapiens' communication; and to show that the emergence of modern language is tied to the transition from pantomime to verbal and grammatically complex forms of narrative. It is suggested that (animal and human) communication is a form of persuasion and that storytelling was the best tool developed by humans to convince others. In the early stage of communication, archaic hominins used forms of pantomimic storytelling to persuade others. Although pantomime is a powerful tool for persuasivecommunication, it is proposed that it is not an effective tool for persuasiveconversation: conversation is characterized by a form of reciprocal persuasion among peers; instead, pantomime has a mainly asymmetrical character. The selective pressure towards persuasive reciprocity of the conversational level is the evolutionary reason that allowed the transition from pantomime to grammatically complex codes inH. sapiens, which favoured the evolution of speech.This article is part of the theme issue ‘Reconstructing prehistoric languages’.

This study addresses the postulate of non-conventionality of pantomime, inherent in pantomimic scenarios of language origin. Since lack of semiotic conventions does not preclude micro-conventions resulting from cultural differences, pantomimes should be easier to interpret when the actor and recipient share the same culture than between two different cultures. In the study, Italian and Polish amateur “actors” re-enacted transitive events from a matrix of cartoon-like drawings. Randomly selected clips were matched by Polish and Italian participants to the corresponding drawings. We found no difference in the number of correct guesses when the actors and matchers were from the same versus from different cultures. We discuss this result in the context of the core assumptions of pantomimic scenarios of language origin. (Less)

Growing evidence suggests that theory of mind (ToM) and episodic future thinking (EFT) are closely related at both brain and functional level. This study explored the relationship between ToM and EFT in 96 Italian-speaking children with typical development aged between 8 and 10.11 using a behavioral design. ToM was assessed through an emotional facial expression recognition task. EFT was assessed with a task where participants were required to project themselves forward in time by anticipating future states of the self; this resulted in two scores: a nonverbal measure and a verbal explanation measure. Results showed that the participants’ performance on the task assessing ToM correlated with and predicted the nonverbal measure of the EFT task. These findings are discussed in the light of theories suggesting that each of these abilities is governed by a common system devoted to self-projection.

Several studies have shown that the analysis of the narrative dimension may represent a useful instrument to shed light on certain critical psychological aspects; to this extent, it might also be fruitful to understand better the addiction disorder. The present study aimed to investigate the critical psychological-narrative aspects involved in Gambling Disorder (GD). A semi-structured interview, one which invited participants to narrate the various phases of addiction (addiction definition, onset, chronicization, relapse, desire, loss of control, control strategies, treatment, future behaviours with respect to the object of addiction), was administered to two groups of subjects in treatment: thirty with GD and eighteen with Substance Use Disorder (SUD). A quali-quantitative multidimensional analysis of this interview was performed. The dependent variables were psychological aspects (agency, passivity, locus of control, motivation) and narrative variables (global narrative coherence and self-projection into the future). The main findings showed that the GD presented a higher sense of agency, passivity, external locus of control and external motivation compared to SUD. Both groups showed a lower global narrative coherence score during the narration of desire (craving) compared to other phases. Moreover, both groups showed an absent self-projection into the future. The findings could be linked to possible impairment of the integration of the self, emotional dysregulation and low self-control typical in addiction. In conclusion, the present study highlighted the importance of the narrative dimension to detect certain critical points in the addiction condition on which to potentially address the treatment.RésuméPlusieurs études ont montré que l’analyse de la dimension narrative peut apporter un éclairage utile sur certains aspects psychologiques cruciaux; en ce sens, elle peut aussi contribuer à une meilleure compréhension des troubles de dépendance. Notre étude visait à examiner les aspects à la fois psychologiques et narratifs intervenant dans les troubles de dépendance. Nous avons réalisé des entrevues semi-structurées qui invitaient les participants à raconter les différentes phases de la dépendance (définition de la dépendance, début, chronicisation, rechute, désir, perte de maîtrise, stratégie de régulation, traitement, comportements futurs en ce qui a trait à l’objet de la dépendance). Nous avons mené ces entrevues auprès de deux groupes de personnes en traitement : 30 ayant une dépendance au jeu (DJ) et 18 ayant un trouble lié à l’usage d’une substance (TUS), puis nous en avons effectué une analyse multidimensionnelle quali-quantitative. Les variables dépendantes étaient des aspects psychologiques (agentivité, passivité, lieu de contrôle, motivation) et des variables narratives (cohérence narrative globale et projection de soi dans l’avenir). Les principaux résultats ont indiqué que, comparativement au groupe TUS, le groupe DJ présentait une meilleure perception sur les plans de l’agentivité, de la passivité, du lieu de contrôle externe et de la motivation extrinsèque. Par rapport aux autres phases, les deux groupes ont montré une cohérence narrative globale inférieure durant la narration relative au désir (envie irrésistible). En outre, les deux groupes ont montré une absence de projection de soi dans l’avenir. On peut lier ces résultats à l’intégration déficiente du moi, à la dysrégulation émotionnelle et au faible autocontrôle qui caractérisent la dépendance. En conclusion, notre étude souligne l’importance de la dimension narrative pour déceler certains aspects cruciaux de l’état de dépendance susceptibles d’orienter le traitement.

The present study analyzed the comprehension of visual narrative in a group of twelve children with autism spectrum disorders (ASD). Their performances were compared to a control group of fifteen children with typical development (TD) matched for age, level of formal education, and IQ. Visual narrative comprehension was assessed by administering a task that required children to understand narrative's global coherence by arranging in the correct order the constituent parts of stories presented in pictures. Specifically, the task evaluated children's ability to grasp how single events connected (causally and temporally) each other and how these connections led to the ending of the story. Results showed that children with ASD obtained significantly lower scores than children with TD. These results open to alternative interpretations of narrative impairments often reported in individuals with ASD, which might not be restricted to the linguistic code but stem from a deeper deficit in narrative processing that is independent from the expressive modality.

Aim of the present study was to investigate affective and cognitive processes underlying self-narratives of patients with gambling disorder through a verbal language analysis. A semistructured interview was administered to 30 patients with gambling disorder (GD) (24 males and 6 females; mean age: 46.63±9.08) concerning the various thematic areas of their condition: definition of addiction, onset and maintenance of the addiction, relapses, desire, loss of control, control strategies, and treatment. Word usage in the self-narratives was categorized using James Pennebaker’s Linguistic Inquiry and Word Count (LIWC) text-analysis software. Specifically, variables analyzed were emotion-related words, the use of pronoun-related words, and tense-related words. The findings showed a higher percentage of negative emotion-related words in the thematic areas of the definition of addiction, maintenance, and loss of control compared with other areas, which may suggest an emotional dysregulation; a higher percentage of first person singular-related words than other person-related words which decreases in the thematic areas of the desire, relapse, and loss of control, which may suggest dissociative phenomena; lastly, a high percentage of present tense-related words, which suggested a static and rigid representation of one’s dependency condition in GD patients and a difficulty to self-project into the future. Overall, the linguistic analysis revealed critical issues in affective and cognitive processes in specific phases of addiction in GD patients which could help guide treatment.

This brief report is a partial replication of the study by Jackson and Atance (J Dev Disabil 14:40-45, 2008) assessing nonverbal Self-based and Mechanical-based future thinking (FT) in children with Autism Spectrum Disorder (ASD). In a first step, these tasks were administered to 30 children with ASD. The two Self-based tasks were then modified as a verbal component could not be completely ruled out. Consequently, 77 children with ASD and 77 children with typical development received the modified Self-based FT tasks and the Mechanical-based FT tasks. We partially replicated the previous findings. Participants with ASD had impaired FT in both kinds of tasks and both groups performed better on tasks assessing Mechanical-based FT than Self-based FT. These results suggest that impairments of FT in ASD are not limited to Self-Projection.

In this paper, we analyze the topic of conflict in reference to the evolution of language. Specifically, we examine two key elements involved in conflicting interactions, competition and cooperation, and show how they are involved in the evolution of linguistic skills. We discuss a model of language origins recently proposed by Tomasello (2008) according to which human language is an evolutionary product of the cognitive systems underlying cooperation among individuals in the social group. The core assumption of this model is that the aforementioned fact makes human language qualitatively different from ape communication, which is mainly individualistic because of the competitive nature of nonhuman primates. Our aim in this paper is to call such a model into question by pointing to an “altruism of knowledge” in apes by discussing some recent experimental data on chimpanzee vocal communication. This data allows us to shed light on the evolution of the cognitive mechanisms that underlie the origin of human communication and to develop a more gradualistic and continuistic model of language evolution. We conclude with some general consideration of the necessity to integrate the cooperative model of communication with a wider and more complex conception of human language and cognition.

The main intent of this paper is to give an account of the relationship between bio-cognition and culture in terms of coevolution, analysing religious beliefs and language evolution as case studies. The established view in cognitive studies is that bio-cognitive systems constitute a constraint for the shaping and the transmission of religious beliefs and linguistic structures. From this point of view, religion and language are by-products or exaptations of processing systems originally selected for other cognitive functions. We criticize such a point of view, showing that it paves the way for the idea that cultural evolution follows a path entirely autonomous and independent from that of biological evolution. Against the by-product and exaptation approaches, our idea is that it is possible to interpret religion and language in terms of coevolution. The concept of coevolution involves a dual path of constitution: one for which biology (cognition) has adaptive effects on culture, the other for which, in turn, forms of culture have adaptive effects on biology (cognition). This dual path of constitution implies that religion and language are (at least in some aspects) forms of biological adaptations.