"When a tiger starts to move towards you, you need to know whether it is something you are actually seeing or whether it's just something that you remember or have imagined," says Prof. Julio Martinez-Trujillo of McGill's ...
Aug 11, 2014
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Optogenetics has taken neuroscience by storm in recent years because the technique allows scientists to study the brain conveniently in animals, activating or inhibiting selected groups of neurons at the flip of a switch. ...
Sep 29, 2015
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Neurons communicate by passing electrical messages, known as action potentials, between each other. Each neuron has a highly specialized structural region, the axon initial segment (AIS), whose primary role is in the generation ...
Oct 29, 2015
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Have you ever wondered why looking at food can make you hungry? By visualizing neuronal activity in specific areas of the zebrafish brain, scientists at the National Institute of Genetics (NIG) in Japan have revealed a direct ...
Apr 20, 2017
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Dopamine has been known to increase when results are promising and decrease when expectations are not met. However, this role does not explain the ability to overcome disappointment.
Jun 20, 2023
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Scientists may have discovered why the standard treatment for Parkinson's disease is often effective for only a limited period of time. Their research could lead to a better understanding of many brain disorders, from drug ...
Oct 24, 2012
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Researchers investigating brain activity in older people say the coordination between neuronal activity and the brain's oxygenation is altered. These findings are published in the Brain Research Bulletin by scientists from ...
Jul 31, 2023
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When starting to learn to play the piano, there is much hesitation and hitting the wrong keys. But with training, the movements of the player become more fluid and accurate. This motor improvement begins in the brain, but ...
Feb 9, 2017
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When neurons communicate with each another, they transmit—or "fire"—small electrical impulses called action potentials or spikes. These action potentials are the fundamental units of information processing in the brain. ...
Aug 3, 2021
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Neuropeptides play fundamental roles in modulating cellular and circuit functions within the brain. One such signaling molecule—orexin—regulates arousal and wakefulness, and its failure can lead to constant daytime sleepiness ...
Feb 10, 2022
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