Codage/décodage

Research in mass communication has most often conceptualized the communication process as a loop. This process can nevertheless be seen as a complex dominant structure produced by the articulation of various related yet distinct moments. Stuart Hall uses the mechanisms of televisual communication to analyse the specific moments in which messages are encoded and decoded. How do these moments function? What are their values in relation to other moments? What is at stake behind these multiple mechanisms?Si la recherche en communications de masse a le plus souvent conceptualisé le processus de communication sous forme de circuit de circulation ou de boucle, il est néanmoins possible de l'appréhender comme une structure dominante complexe produite à travers l'articulation de divers moments liés et cependant distincts. A travers les mécanismes de communication télévisuelle, Stuart Hall analyse ici ces moments déterminés que sont le codage et le décodage des messages. Comment ces divers moments fonctionnent-ils? Quelles sont leurs valeurs par rapport à d'autres moments? Et, derrière ces multiples mécanismes, quels sont les enjeux à l'œuvre?Hall Stuart, CCCS, Albaret Michèle, Gamberini Marie-Christine. Codage/décodage. In: Réseaux, volume 12, n°68, 1994. Les théories de la réception. pp. 27-39

Codage/Décodage

Hall Stuart, CCCS, Albaret Michèle, Gamberini Marie-Christine. Codage/Décodage. In: Sociologie de la communication, volume 1, n°1, 1997. Sociologie de la communication. pp. 59-71

Intrinsic Cortico-Subcortical Functional Connectivity in Developmental Dyslexia and Developmental Coordination Disorder

International audienceDevelopmental dyslexia (DD) and developmental coordination disorder (DCD) are distinct diagnostic disorders. However, they also frequently co-occur and may share a common etiology. It was proposed conceptually a neural network framework that explains differences and commonalities between DD and DCD through impairments of distinct or intertwined cortico-subcortical connectivity pathways. The present study addressed this issue by exploring intrinsic cortico-striatal and cortico-cerebellar functional connectivity in a large (n = 136) resting-state fMRI cohort study of 8-12-year-old children with typical development and with DD and/or DCD. We delineated a set of cortico-subcortical functional circuits believed to be associated with the brain's main functions (visual, somatomotor, dorsal attention, ventral attention, limbic, frontoparietal control, and default-mode). Next, we assessed, using general linear and multiple kernel models, whether and which circuits distinguished between the groups. Findings revealed that somatomotor cortico-cerebellar and frontoparietal cortico-striatal circuits are affected in the presence of DCD, including abnormalities in cortico-cerebellar connections targeting motor-related regions and cortico-striatal connections mapping onto posterior parietal cortex. Thus, DCD but not DD may be considered as an impairment of cortico-subcortical functional circuits

The first 2IB,3IA-heterodifunctionalized β-cyclodextrin derivatives as artificial enzymes

International audienceNovel 2,3-heterodisubstituted β-cyclodextrin derivatives were designed as artificial enzymes to degrade chemical warfare agents. One of them reduced the acetylcholinesterase inhibitory potential by soman faster than its monosubstituted analog

Dyslexia, with or without Developmental Coordination Disorder: Different reading mechanisms?

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