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Biomedical subjects

G Thinès

Publications and source records attributed to G Thinès.

5 recordsLinked to original sources

[Ethological analysis of behavior and the emergence of ethics].

The problem of the emergence of ethical conduct is considered in the perspective of the neo-darwinian scheme and thus of the survival value of actions complying to this definition. After a brief recall of basic ethological principles, the applications of the cultural character to certain behaviour patterns of primates is analysed and introduces the concept of value. The emergence of symbolic and reflexible language in the course of the evolution of the ancestors of Homo sapiens is discussed. The ethical order is defined as a code liable to qualify actions which were originally programmed. The consequences of this duality of codes governing a same action are discussed.

Animals↗

Modal completion: critical variables in apparent transparency.

Conditions for perceptual modal completion are investigated using a stimulation pattern consisting of a figure moving behind a black opaque strip. This configuration leads, depending on conditions, either to the amodal Michotte tunnel effect, or to modal completion, ie the apparent transparency phenomenon. Four experiments are reported in which an attempt was made to define the critical variables of this latter effect. The results show that modal completion is not typically related to luminance interactions, ie to assimilation, but depends on the figural dominance of the filled-in object, this being determined by structural factors such as figure-ground relationship and stimulation change. The effect also depends strongly on the complexity of the spatiotemporal integration needed to maintain phenomenal identity of the object. No significant effect was found for the two other variables investigated, ie formal complexity of the figure and depth between the figure and the strip. The data are discussed in relation to those on moving visual phantoms.

Attention↗

[The theory of subjective space].

Subjective space is the space which develops around the subject's own body in relation to the capacities of the various receptors. As opposed to the reductionist interpretation founded exclusively on the physical properties of receptors, the theory of subjective space, as announced in Sherrington's work, makes it possible to formulate a phenomenological interpretation of sensorimotor coordinations. Confronting the spatio-temporal properties of the various perceptual fields, the theory allows in turn to define the conditions of a hermeneutic analysis of the act and of the genesis of the object. As such, it adds some precisions to the general theory of subjectivity as outlined by Straus, Buytendijk and a few other theorists who stressed the role of phenomenology in the founding of a adequate biology of human conduct.

Humans↗