A common view in affective neuroscience considers emotions as a multifaceted phenomenon constituted by independent affective and motor components. Such dualistic connotation, obtained by rephrasing the classic Darwin and James’s theories of emotion, leads to the assumption that emotional expression is controlled by motor centers in the anterior cingulate, frontal operculum, and supplementary motor area, whereas emotional experience depends on interoceptive centers in the insula. Recent stimulation studies provide a different perspective. I will outline two sets of findings. First, affective (...) experiences can be elicited also following the stimulation of motor centers. Second, emotional expressions can be elicited by stimulating interoceptive regions. Echoing the original pragmatist theories of emotion, I will make a case for the notion that emotional experience emerges from the integration of sensory and motor signals, encoded in the same functional network. (shrink)

Tool-use behavior is currently one of the most intriguing and widely debated topics in cognitive neuroscience. Different accounts of our ability to use tools have been proposed. In the first part of the paper we review the most prominent interpretations and suggest that none of these accounts, considered in itself, is sufficient to explain tool use. In the second part of the paper we disentangle three different types of reasoning on tools, characterized by a different distribution of motor and cognitive (...) ingredients. At the conceptual level, these types of reasoning reflect the distinction between three types of abductive inference as they are described in semiotic studies. At the functional level, we suggest that these types of reasoning on tools may correspond to different mental processes, possibly implemented in different regions of the left inferior parietal lobe. This proposal can account for the different interpretations commonly associated with the role of the left parietal cortex in tool use. (shrink)

Sociocultural transformations brought about by indigenous leaders in Amazonia have been described as prophetic, millenaristic, or messianic and contrasted with modern reformism. This article addresses new ways of describing processes of change negotiated among indigenous actors. Although these processes are mostly absent from colonial or later sources, they should not remain foreign to ethnology, as the three empirical cases analyzed in this essay show. Methodologically, the essay asks why the regulatory image of Rousseau's small community, meeting face to face to (...) express the general will, has never had the same impact in the anthropological imagination as that of the “noble savage.” Thematically, these case studies raise the question of how peace is made and suggest that, while peacemaking demands “magic,” the invocation of extrahuman powers, the social forms and values on which peace is based are contained as objective possibilities in the present. Making peace actual requires creative choices. (shrink)

O artigo propõe, a partir de uma análise da célebre tese das “bestas-máquinas” de Descartes, uma discussão acerca da possibilidade de os animais, segundo esta doutrina, possuírem sensações, sendo assim capazes ou não de sentir dor; de sua recepção nos círculos científicos ingleses do século XVII em vista das práticas de vivissecção a sangue frio, correntes à época; de como os processos de mecanomorfose do pensamento afetam atualmente a vida dos animais.

Este ensaio visa elucidar as relações entre Marx e Hegel a partir da análise de questões que diferenciam a “dialética limitada" do primeiro frente à dialética e à especulação do segundo. Essa diferença é destacada no estudo do problema do "entendimento", da “imaginação” do “tempo”, da “matéria” e da "negação".