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originally posted by: Threadbarer
Law of Conservation of Energy. The human body can produce up to 2000 watts of electricity. That energy has to go somewhere when the body dies.
This reminds me of my father randomly telling me that the brain lives nearly 15 minutes after death. This was roughly 20 years ago and literally came out of nowhere.
originally posted by: TaupinDesciple
a reply to: Threadbarer
Reincarnation anyone?
originally posted by: Threadbarer
a reply to: SchrodingersRat
What do you think "brain waves" are?
The human brain is made up of billions of neurons, each with its own electrical firing patterns. When groups of neurons fire together in a certain way to send signals to other groups of neurons, the resulting patterns are known as brain waves. These electrical patterns are associated with different types of activity in the brain as well as different states of consciousness.
However, the heart's intrinsic electrical system can keep the organ beating for a short time after a person becomes brain-dead — in fact, the heart can even beat outside the body, Greene-Chandos said. But without a ventilator to keep blood and oxygen moving, this beating would stop very quickly, usually in less than an hour, Greene-Chandos said.
Life After Brain Death: Is the Body Still 'Alive'?
originally posted by: Threadbarer
a reply to: SchrodingersRat
Neutral activity is detected in two ways. MRI and EEG. An MRI monitors neural activity via blood flow. An EEG monitors it via electrical output.
Considering blood flow ceases at death, an MRI would not be useful to show neural activity postmortem. Therefore, these studies must be using an EEG.
originally posted by: Antidoppleganger2
originally posted by: Threadbarer
a reply to: SchrodingersRat
Neutral activity is detected in two ways. MRI and EEG. An MRI monitors neural activity via blood flow. An EEG monitors it via electrical output.
Considering blood flow ceases at death, an MRI would not be useful to show neural activity postmortem. Therefore, these studies must be using an EEG.
As someone who designed MRI coils, that is not at all how an MRI works. In layman's terms it magnetizes the patient, getting certain molecules' valence electrons to spin at a frequency based on field strength. An RF signal is sent to align then and then released. Once released the decay of the aligned spin (differing depending the molecule make-up) is measured by the coil. It has nothing to do with blood flow. Unless you're trying to use contrast it makes no difference if he object is dead or alive. In fact 'phantoms' are used for testing and calibration. These are just objects filled with chemical solutions.