John Searle; Mystery of Consciousness
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Searle; Mystery of Consciousness 5 Consciousness (common sense definition) - refers to those states of sentience and awareness that typically begin when we awake from a dreamless sleep and continue until we go to sleep again, or fall into a coma or die or otherwise become "unconscious".
Searle; Mystery of Consciousness 5 Dreams are a form of consciousness. 0
Searle; Mystery of Consciousness 5 Within the field of consciousness there are states of intensity ranging from drowsiness to full awareness. 0
Searle; Mystery of Consciousness 5 Humans and higher animals are obviously conscious, but we do not know how far down the phylogenetic scale consciousness extends. 0
Searle; Mystery of Consciousness 6 Consciousness vs. self-consciousness 1
Searle; Mystery of Consciousness 9 All conscious phenomena are qualitative, subjective experiences, and hence are qualia. 3
Searle; Mystery of Consciousness 13 Brains can have consciousness as an emergent property. 4
Searle; Mystery of Consciousness 18 Simulation of  mental states is no more a mental state than the simulation of an explosion is itself an explosion. 5
Searle; Mystery of Consciousness 22 All of our conscious experiences are explained by the behavior of neurons and are themselves emergent properties of the system of neurons. 4
Searle; Mystery of Consciousness 27 Though each neuron receives both excitatory and inhibitory signals, each neuron sends out only one or the other type of signal. 5
Searle; Mystery of Consciousness 27 Our entire mental life is caused by the behavior of neurons, and all they do is increase or decrease their rates of firing. 0
Searle; Mystery of Consciousness 34 Reference Francis Crick: solution to the binding problem,    synchronized firing    of spatially separated neurons    that are responsive to different features of an object.    Neuron assemblies responsive to shape, color, movement, etc. fire in synchrony at about 40 Hz. 7
Searle; Mystery of Consciousness 34 Reference Francis Crick: thalamus plays a central role in consciousness, synchronized firing in the range of 40 Hz in networks connecting the thalamus and the cortex, especially layers four and six. 0
Searle; Mystery of Consciousness 39 Of the neurobiological theories of consciousness, John Searle believes the most impressively worked out and the most profound is that of Gerald Edelman. 5
Searle; Mystery of Consciousness 40 Crick uses the binding problem for visual perception as entry wedge for consciousness; Edelman uses categorization as his entry wedge. 1
Searle; Mystery of Consciousness 40 Edleman's notion of maps. Human visual system comprises over thirty maps in the visual cortex. 0
Searle; Mystery of Consciousness 40 Edelman's "Neuronal Group Selection": Brain is genetically equipped from birth with an overabundance of neuronal groups, develops by a mechanism similar to Darwinian natural selection; some neuronal groups die out; others survive and are strengthened. 0
Searle; Mystery of Consciousness 41 In some parts of the brain, as many as 70 percent of the neurons die before the brain reaches maturity. 1
Searle; Mystery of Consciousness 41 Unit that gets selected is not the individual neuron, but neuronal groups of hundreds to millions of cells. 0
Searle; Mystery of Consciousness 41 Edelman's idea about reentry: Reentry is a process by which parallel signals go back and forth between maps. 0
Searle; Mystery of Consciousness 41 Reentry is not just feedback; reentry is many parallel pathways operating simultaneously. 0
Searle; Mystery of Consciousness 41 Edelman's reasoning: perceptual categories begin with shapes, color, movement, and eventually to objects and abstract general concepts. 0
Searle; Mystery of Consciousness 44 Memory for Edelman is not just a passive process of storing but an active process of recategorizing on the basis of privious categorizations. 3
Searle; Mystery of Consciousness 44 Memory recategorizes the input by enhancing the priviously established categorization. This involves changes in the population of synapses in the global mapping. It does not just recall a stereotype but continually reinvents the category. 0
Searle; Mystery of Consciousness 44 Edelman's conception of memory, one of his theory's most powerful features; alternative to the traditional idea of memory as a storehouse of knowledge and experience, and of remembering as a process of retrieval from the storehouse. 0
Searle; Mystery of Consciousness 44 Edelman's concept of learning: Learning is a matter of changes in behavior that are based on categorizations governed by positive and negative values. 0
Searle; Mystery of Consciousness 46 Primary consciousness    results from the interaction in real time    between memories of past value category correlations    and present world input    as it is categorized by global mappings. 2
Searle; Mystery of Consciousness 47 Consciousness is an outcome of a recursively comparative memory    in which previous self-non-self categorizations    are continually related    to ongoing present perceptual categorizations. 1
Searle; Mystery of Consciousness 47 High-order consciousness can only be developed on the basis of primary consciousness, in order to develop such high-order capacities as language and symbolism. 0
Searle; Mystery of Consciousness 48 The whole set of interlocking systems produces consciousness by way of reentrant mappings. 1
Searle; Mystery of Consciousness 48 Qualitative states of sentience or awareness that all of us have -- what some philosophers call "qualia". 0
Searle; Mystery of Consciousness 51 Edelman and Crick share the basic conviction that to understand the mind and consciousness, we must understand in detail how the brain works. 3
Searle; Mystery of Consciousness 97 Daniel Dennett's book Consciousness Explained is a work in the tradition of behaviorism. 46
Searle; Mystery of Consciousness 120 In his book Consciousness Explained, Dennett denies the existence of consciousness.  For him it refers only to third-person phenomena, not to the first person conscious feelings and experiences we all have. 23
Searle; Mystery of Consciousness 123 Dennett's objective science of consciousness is not about consciousness, but rather a third-person account of external behavior. 3
Searle; Mystery of Consciousness 131 We know that certain brain functions are sufficient for consciousness, but we have no way of knowing at present whether they are also necessary. 8
Searle; Mystery of Consciousness