During our waking hours, the brain is receiving a near-constant influx of sensory signals of various strengths. For decades, scientists have wondered why some signals rise to the light of conscious awareness while other signals ...
May 4, 2021
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204
Millions of people are administered general anesthesia each year in the United States alone, but it's not always easy to tell whether they are actually unconscious.
Mar 16, 2021
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165
We feel that we live in the present. When we open our eyes, we perceive the outside world as it is right now. But we are actually living slightly in the past.
Mar 17, 2020
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One of the central questions in neuroscience is clarifying where in the brain consciousness, which is the ability to experience internal and external sensations, arises. On February 12 in the journal Neuron, researchers report ...
Feb 12, 2020
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438
Given the limited capacity of our attention, we only process a small amount of the sights, sounds, and sensations that reach our senses at any given moment—what happens to the stimuli that reach our senses but don't enter ...
Feb 26, 2019
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86
A 35-year-old man who had been in a vegetative state for 15 years after a car accident has shown signs of consciousness after neurosurgeons implanted a vagus nerve stimulator into his chest. The findings reported in Current ...
Sep 25, 2017
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When people see an image of a person they recognize—the famous tennis player Roger Federer or actress Halle Berry, for instance—particular cells light up in the brain. Now, researchers reporting in Current Biology on ...
Sep 21, 2017
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When people have a brain injury so severe that they can't squeeze a loved one's hand or otherwise respond, there are few good ways to tell if they have any lingering awareness or are in a vegetative state. Now researchers ...
Aug 14, 2013
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The near-death experience reported by cardiac arrest survivors worldwide may be grounded in science, according to research at the University of Michigan Health System.
Aug 12, 2013
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Since the mid-1800s, doctors have used drugs to induce general anesthesia in patients undergoing surgery. Despite their widespread use, little is known about how these drugs create such a profound loss of consciousness.
Mar 4, 2013
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