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Consciousness—The having of perceptions, thoughts, and feelings; awareness. The term is impossible to define except in terms that are unintelligible without a grasp ...
Consciousness Explained is a 1991 book by the American philosopher Daniel Dennett, in which the author offers an account of how consciousness arises from interaction of physical and cognitive processes in the brain. Dennett describes consciousness as an account of the various calculations occurring in the brain at close to the same time.
Higher-order theories of consciousness propose that a mental state becomes conscious when it is the object of a higher-order representation, such as a thought or perception about that state. These theories argue that consciousness arises from a relationship between lower-order mental states and higher-order awareness of those states.
The notion that quantum physics must be the underlying mechanism for consciousness first emerged in the 1990s, when Nobel Prize-winning physicist Roger Penrose, Ph.D., and anesthesiologist Stuart ...
Models of consciousness are used to illustrate and aid in understanding and explaining distinctive aspects of consciousness. Sometimes the models are labeled theories of consciousness . Anil Seth defines such models as those that relate brain phenomena such as fast irregular electrical activity and widespread brain activation to properties of ...
Consciousness is the quality or state of being aware of an external object or something within oneself. It has been defined as: subjectivity , awareness , sentience , the ability to experience or to feel , wakefulness, having a sense of selfhood , and the executive control system of the mind.
A science of consciousness must explain the exact relationship between subjective mental states and brain states, the nature of the relationship between the conscious mind and the electrochemical interactions in the body (mind–body problem).
He explains how consciousness was not even mentioned in neuroscientific circles until the late 1980s, when a revolution in consciousness research began. Dehaene believes that "access consciousness" (being aware of and able to report on information) is the right definition to start with for scientific investigation.