A Quote by Oliver Sacks
With any hallucinations, if you can do functional brain imagery while they're going on, you will find that the parts of the brain usually involved in seeing or hearing - in perception - have become super active by themselves. And this is an autonomous activity; this does not happen with imagination.
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With any hallucinations, if you can do functional brain imagery while theyre going on, you will find that the parts of the brain usually involved in seeing or hearing - in perception - have become super active by themselves. And this is an autonomous activity; this does not happen with imagination.
Given her deafness, the auditory part of the brain, deprived of its usual input, had started to generate a spontaneous activity of its own, and this took the form of musical hallucinations, mostly musical memories from her earlier life. The brain needed to stay incessantly active, and if it was not getting its usual stimulation..., it would create its own stimulation in the form of hallucinations.
Imagination is strong in a man when that particular function of the brain which enables him to observe is roused to activity without any necessary excitement of the sense. Accordingly, we find that imagination is active just in proportion as our sense are not excited by external objects. A long period of solitude, whether in prison or in a sick room; quiet, twilight, darkness-these are the things that promote its activity; and under their influence it comes into play of itself.
The brain of a person in love will show activity in the amygdala, which is associated with gut feelings, and in the nucleus accumbens, an area associated with rewarding stimuli that tends to be active in drug abusers. Or, to recap: the brain of a person in love doesn't look like the brain of someone overcome by deep emotion. It looks like the brain of a person who's been snorting coke.
Each of us plays four roles in relation to the brain. We lead, we inspire, we invent, and we use it. Most people do not actively use their brains. They passively let their feelings and thoughts control their lives. They don't invent new ways to use their brains, either, settling instead for the same routine and repetitive thoughts every day. But if you master all four roles, you create your super brain. When you are the active observer of your feelings and thoughts, you become the user of your brain. Your super brain then serves you, not vice versa.
Everyone uses the brain at every moment, but we use it unconsciously. We let it run in the background without realizing the power we have to reshape the brain. When you begin to exercise your power, the everyday brain, which we call the baseline brain, starts to move in the direction of super brain.
Given that the dreaming brain must perform these remarkable contortions - creating a world, living in it, responding to it, and then carefully blocking all the responses in a manner that does not cross the threshold of awareness - it is no wonder that this dreaming brain seems to be more active than the waking brain.
Since functional brain imaging first emerged, we have learned that there aren't very many brain regions uniquely responsible for specific tasks; most complex tasks engage many if not all of the brain's major networks. So it is fairly hard to make general psychological inferences just from brain data.
The emergence of a unified cognitive moment relies on the coordination of scattered mosaics of functionally specialized brain regions. Here we review the mechanisms of large-scale integration that counterbalance the distributed anatomical and functional organization of brain activity to enable the emergence of coherent behaviour and cognition. Although the mechanisms involved in large-scale integration are still largely unknown, we argue that the most plausible candidate is the formation of dynamic links mediated by synchrony over multiple frequency bands.
We see with the eyes, but we see with the brain as well. And seeing with the brain is often called imagination.
Through studies of music and the brain, we've learned to map out specific areas involved in emotion, timing, and perception - and production of sequences. They've told us how the brain deals with patterns and how it completes them when there's misinformation.
We have allowed brain thinking to develop and dominate our lives.
As a consequence, we are at war within ourselves.
The brain desiring things which the body does not want, and the body desiring things which the brain does not allow; the brain giving directions which the body will not follow, and the body giving impulses which the brain cannot
All activity in the brain is driven by other activity in the brain, in a vastly complex, interconnected network.
It seems that the brain always has to be active, and if the auditory parts of the brain are not getting sufficient input, then they may start to create hallucinatory sounds on their own. Although it is curious that they do not usually create noises or voices; they create music.
I think that cognitive scientists would support the view that our visual system does not directly represent what is out there in the world and that our brain constructs a lot of the imagery that we believe we are seeing.
The psychotic does not merely think he sees four blue bivalves with floppy wings wandering up the wall; he does see them. An hallucination is not, strictly speaking, manufactured in the brain; it is received by the brain, like any 'real' sense datum, and the patient act in response to this to-him-very-real perception of reality in as logical a way as we do to our sense data. In any way to suppose he only 'thinks he sees it' is to misunderstand totally the experience of psychosis.
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