Neuroscience
A giant interneuron for sparse coding
A single interneuron controls activity adaptively in 50,000 neurons, enabling consistently sparse codes for odors.
May 13, 2011
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News tagged with optic flow
Cardiology
New technology gives unprecedented look inside capillaries
More than 40 billion capillaries—tiny, hair-like blood vessels—are tasked with carrying oxygen and nutrients to the far reaches of the human body. But despite their sheer number and monumental importance to basic functions ...
Jan 24, 2019
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Neuroscience
Highly flexible despite hard-wiring -- even slight stimuli change the information flow in the brain
One cup or two faces? What we believe we see in one of the most famous optical illusions changes in a split second; and so does the path that the information takes in the brain. In a new theoretical study, scientists of the ...
Mar 23, 2012
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Cardiology
AI-based image analysis automatically detects serious heart condition
Researchers have developed a new artificial intelligence (AI) method that can automatically detect plaque erosion in the heart's arteries using optical coherence tomography (OCT) images. Monitoring plaque in the arteries ...
Jun 16, 2022
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Obstetrics & gynaecology
A novel method for monitoring the 'engine' of pregnancy
A study published in Nature Biomedical Engineering details a novel method for imaging the placenta in pregnant patients as well as the results of a pilot clinical study. By combining optical measurements with ultrasound, ...
Aug 16, 2022
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Neuroscience
The backwards brain? Study shows how brain maps develop to help us perceive the world
Driving to work becomes routine—but could you drive the entire way in reverse gear? Humans, like many animals, are accustomed to seeing objects pass behind us as we go forward. Moving backwards feels unnatural.
Nov 12, 2014
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Neuroscience
New method for detecting blood circulation problems in brain capillaries
The brain is perhaps the most sensitive organ with respect to changes in blood flow and oxygen supply. Even brief interruptions in capillary flow (or "stalling") can indicate acute neurological issues; evidence suggests that ...
Sep 13, 2023
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Inflammatory disorders
Sensor tracks cortisol levels in real time
Skoltech researchers have developed a prototype of a fluorescence-based sensor for continuous detection of cortisol concentrations in real time, which can help monitor various health conditions. The paper was published in ...
Apr 13, 2021
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Medical research
Cortex-wide variation of neuronal cellular energy levels depending on the sleep-wake states
It is assumed that the brain has homeostatic mechanisms to prevent the depletion of cellular energy, required for all cellular activities. For example, the blood flow increases, and oxygen and glucose are actively delivered ...
Oct 7, 2020
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Obstetrics & gynaecology
Wearable optical device shows promise for detecting postpartum hemorrhage
Researchers have developed a wearable optical device for early detection of hemorrhage during labor or after childbirth. This serious heavy bleeding can be hard to detect before it becomes an emergency and accounts for almost ...
Sep 21, 2023
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