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We assess the contribution of microgenetic thinking to “expressivist” and semiotic theories of perception. Three layers of expression are distinguished: (i) originary expressivity of experience, (ii) action as expression, and (iii) expression as institution, this latter layer involving the necessity of re-expression and of reprise, along with a diversification of genres and modalities (virtual/actual, possible /necessary). As we proceed, we delineate the core issues of “expressivism” and define a generic this latter layer involving the necessity of re-expression and of reprise, along with a diversification of genres and modalities (virtual/actual, possible /necessary). As we proceed, we delineate the core issues of “expressivism” and define a generic framework on which to base a theory of expression. Mathematical models of actualization and theories of thematic field and of thematization provide in this respect valuable conceptual tools. The question of reprise is then restated as that of a necessary diversification of modalities (whether empowering or constraining) relative to different “phases” of microgenesis, each of which potentially involving its own modes of perception and memory. The continuous and dynamical setting laid out in the article enables us to account for various kinds of genericity that are constitutively correlated with different phases of activity (modes of organization) co-occurring in the field. Critical in this respect is the genetic concept of anticipation which subtends varying motivation building upon protention or forward tension. Depending on the phase of microgenesis, it becomes possible to highlight different modal and temporal characters involved in the constitution of forms in the field. A series of diagrams illustrates various stages of this development, which culminates in instituted semiosis and enunciation, each intrinsically related to, but distinct of, its expressive dimensions.
Pour citer cet article :Rosenthal Victor, Visetti Yves-Marie (2008/3). Theories and Models of Expression: a Microgenetic Perspective. In Lassègue Jean (Eds), Religion and Cognition, Intellectica, 50, (pp.177-252), DOI: 10.3406/intel.2008.1232.