Phi: a voyage from the brain to the soul

The dream of Galileo

Evidence : experiments of nature

Introduction : displacements

Cerebrum : in which it is shown that the corticothalamic system generates consciousness

Cerebellum : in which it is shown that the cerebellum, while having more neurons than the cerebrum, does not generate consciousness

Two blind painters : in which it is shown that sensory inputs and pathways are not necessary for consciousness

A brain locked in : in which it is shown that motor inputs and pathways are not necessary for consciousness, nor are they sufficient

Empress without memory : in which it is shown that many brain circuits that help us see, hear, remember, speak, and act are not necessary for consciousness

A brain split : in which it is shown that consciousness is divided if the brain is split

A brain conflicted : in which it is shown that consciousness can split if different regions of the brain refuse to talk to each other

A brain possessed : in which it is shown that when cortical neurons fire strongly and synchronously, as during certain seizures, consciousness fades

A brain asleep : in which it is shown that when cortical neurons can be on and off only together, as during dreamless sleep, consciousness fades

Theory : experiments of thought

Introduction : the enigma of consciousness

Galileo and the photodiode : in which it is shown that the humble photodiode can tell light from dark as well as Galileo

Information : the manifold repertoire : in which it is shown that the repertoire of possible experiences is as large as one can imagine

Galileo and the camera : in which it is shown that the sensor of a digital camera has a large repertoire of possible states, perhaps larger than Galileo's

Integrated information : the many and the one : in which it is shown that consciousness lives where information is integrated by a single entity above and beyond its parts

Galileo and the bat : in which it is shown that the quality of experience cannot be derived from matter

Seeing dark (deconstructing darkness) : in which it is shown that darkness does not exist is a void but requires a context

The meaning of ark (constructing darkness) : in which it is shown that darkness is built of many nested mechanisms that specify what it is not

The Palace of Light : in which it is shown that an experience is a shape made of integrated information

The Garden of Qualia : in which it is said that the universe is mostly dark, but the largest stars are closer than one thinks, if they are looked at with the proper instrument

Implications : a universe of consciousness

Introduction : sparks and flames

Nightfall I : death : in which it is said that, if consciousness is integrated information, is dissolves with death

Nightfall II : dementia : in which it is said that consciousness disintegrates with dementia

Nightfall III : dolor : in which it is said that, if the quality of consciousness is a shape made of integrated information, it can be turned into the only real and eternal Hell

Twilight I : consciousness diminished : in which it is said that consciousness can be present in the absence of language and reflection

Twilight II : consciousness evolving : in which it is said that animals are conscious, too

Twilight III : consciousness developing : in which it is said that consciousness must be present, to some degree, even before birth

Daylight I : consciousness exploring : in which it is said that, by investigating nature, new qualia are discovered

Daylight II : consciousness imagining : in which it is said that are and imagination invent new shapes within the mind

Daylight III : consciousness growing : in which it is said that, by growing consciousness, the universe comes more into being, the synthesis of one and many

Epilogue : three late dreams

Afterthoughts : study questions.