John Searle claims that consciousness is ontologically subjective, since conscious mental phenomena only exist as long as they are experienced. Therefore, mental phenomena are essentially conscious, insofar as their mental character depends on their connection with consciousness. However, to align the acceptance of unconscious mental phenomena with his Cartesian view of consciousness, Searle defends adispositional account of the unconscious. The problem is that some cases of unconscious mental causation require that certain decisive mental properties exist in an occurrent way, and (...) not merely as dispositions. By accepting unconscious mental causation, Searle commits himself to a mental existence that isindependent from consciousness. Such unconscious existence implies that certain mental phenomena are ontologically objective, and not subjective as he claims, because they exist without being experienced.Keywords: Ontological subjectivity, unconscious, disposition, mental causation, objectivity. (shrink)

O artigo tem como objetivo geral determinar se o naturalismo biológico é uma forma de fisicalismo ou de dualismo. Após uma exposição das semelhanças da teoria com o fisicalismo reducionista, é examinada a visão de Searle sobre a redução causal, e discutida uma maneira como sua concepção acerca das capacidades causais da consciência e do cérebro pode ser reformulada para não comprometê-lo com o reducionismo.