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Category: neuroscience – Page 1,196

It’s Possible to Plant False Memories Into Your Brain, And It Could Be a Good Thing

Have you ever had an argument because you disagree about the way something happened? You were both there, you saw the same thing, but you remember it differently.

This happens quite a lot, because human memories are imperfect. As much as we all like to think we can trust our own minds, memories can be altered over time.

Elizabeth F. Loftus is a researcher and professor of cognitive psychology and human memory. She is well known in the field for her work on the creation and nature of false memories, and how people can be influenced by information after an event has happened, event consulting or providing expert witness testimony for hundreds of court cases.

Boosting Mitochondrial Quality Control to Combat Alzheimers

Scientists at the École polytechnique fédérale de Lausanne (EPFL) have found a way to make mitochondria more resistant to damage, which could potentially be used to halt Alzheimer’s and other, similar, diseases.

Globally, Alzheimer’s disease is the most common form of dementia and cause of neurodegeneration. It causes brain damage and symptoms such as long-term memory loss. It is an amyloid-based disease, with the characteristic hallmark being the formation of toxic plaques in the brain made from the aggregated beta-amyloid inside the neurons.

Science Is Starting to Explore the Gray Zone Between Life and Death

Biologist Mark Roth, at Seattle’s Fred Hutchinson Cancer Research Center, is working with animal subjects, putting them into suspended animation. The idea is that a patient who is in medical crisis could be put into a suspended state like hibernation, until he or she could be stabilized and in this way, get past it.

Though we tend to expire when the oxygen level is low, many animals go into a suspended state in extremely low oxygen environments. In the lab, one must enter into such an environment quickly. Roth is currently working with nematodes—a kind of roundworm—and expects to eventually work up to humans.

A vegetative state is another aspect of what we consider the gray zone between life and death. Medically, this is when sufficient damage to the brain has occurred, where the person isn’t aware of and can’t respond to their surroundings. They may breathe, have a heartbeat, move their eyes, even show reflexes, but they can’t respond to stimuli or interact with the world. Their brain stem is operating normally, but other parts of the brain may be damaged or inoperable. Most patients who enter such a state never leave it.

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