Se trata de un abordaje teórico de la conciencia en el marco de una ciencia psicológica de la conciencia. Se presenta la paradoja de la conciencia: fenómeno evidente e importante y a la vez olvidado, negado, desnaturalizado, subvertido y degradado. Se revisan definiciones y se abordan los problemas ontológico, epistemológico, semántico y metodológico de la consciencia. Se distingue conciencia de consciencia moral. Se distingue conciencia y autoconsciencia; conciencia primaria y secundaria; pasiva y reflexiva; fenoménica y de acceso. Se aborda la estructura y los contenidos de conciencia. Se analizan tipos y niveles, incluyendo la distinción entre vigilia y sueño. Se aborda la conciencia en los sueños lúcidos y estados alterados. Se discute la teoría de la mente bicameral de Jaynes. Se abordan las relaciones entre conciencia e inconsciente en Freud, Sartre y Searle. Se analiza la relación entre conciencia e inconsciente en las tópicas freudiana y en la tesis searlena sobre estados mentales inconscientes como potencialmente conscientes. Se analiza la consciencia en las nociones de inconsciente emocional, fondo endotímico, inconsciente y procesamiento cognitivo. Se aborda el problema de la causalidad consciente sobre la conducta. Se relacionan conciencia y subjetividad. Se consideran las nociones de consciencia confinada, corporal y extendida. Palabras clave Ciencia consciencia - Inconsciente - Subjetividad - Consciencia ABSTRACT 12 PROBLEMS FOR A SCIENCE OF CONSCIOUSNESS It is a theoretical approach to consciousness within the framework of a psychological science of consciousness. The paradox of consciousness is presented: an evident and important phenomenon and at the same time forgotten, denied, denatured, subverted and degraded. Definitions are reviewed and the ontological, epistemological, semantic and methodological problems of consciousness are addressed. Consciousness is distinguished from moral conscience. Consciousness and self-consciousness are distinguished; primary and secondary consciousness; passive and reflective; phenomenal and access. The structure and contents of consciousness are addressed. Types and levels are discussed, including the distinction between wakefulness and sleep. Consciousness is addressed in lucid dreams and altered states. Jaynes’ bicameral theory of mind is discussed. The relations between consciousness and the unconscious are addressed in Freud, Sartre and Searle. The relationship between consciousness and the unconscious is analyzed in Freudian topics and in Searlena’s thesis on unconscious mental states as potentially conscious. Consciousness is analyzed in the notions of emotional unconscious, endothymic background, unconscious and cognitive processing. The problem of conscious causality about behavior is addressed. Consciousness and subjectivity are related. The notions of confined, bodily, and extended consciousness are considered. Keywords Science of Consciousness - Unconscious - Subjectivity - Altered States of Consciousness Keywords Science of consciousness - Unconscious - Subjectivity - Altered