As human beings age, the functioning of organs gradually deteriorates. While countless past studies have investigated the effects of aging on the human body, brain and on cognition, the neural mechanisms and environmental ...
The melanin-concentrating hormone (MCH) is a neuropeptide (i.e., a compound that transmits information in the brain) produced by neurons in a region known as the lateral hypothalamic area (LHA). Past studies have found that ...
Dendritic spines, small membranous protrusions emerging from a brain cell's dendrite, help to transmit electrical signals to neurons. These spines can have a variety of different shapes, ranging from so-called "stubby" to ...
The expression of genes in response to neuronal activity can significantly influence the human brain's development over time. While many neuroscientists have investigated the epigenetic effects of neuronal activity, most ...
A new analysis of the brain activity of people with post-traumatic stress disorder (PTSD) is the first to reveal that traumatic memories are represented in the brain in an entirely different way than sad autobiographical ...
Nov 30, 2023
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Two distinct neurodevelopmental abnormalities that arise just weeks after the start of brain development have been associated with the emergence of autism spectrum disorder, according to a new Yale-led study in which researchers ...
Aug 10, 2023
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Memories from a distant past, also known as remote memories, can guide the present and future behavior of humans and other living organisms on Earth. In psychology and neuroscience, the term "remote memories" refers to all ...
Before undergoing surgeries and other invasive medical procedures, patients typically undergo anesthesia. Anesthesia consists in giving patients a class of drugs (i.e., anesthetics) that cause them to lose feeling in specific ...
Opening the eyes immediately provides a visual perception of the world—and it seems so easy. But the process that starts with photons hitting the retina and ends with 'seeing' is far from simple. The brain's fundamental ...
Nov 4, 2019
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Learned fear responses enable animals—including humans—to flee or freeze in the face of a perceived threat. But if these behaviors persist after the danger lifts, they can become paralyzing and disabling. That's a key ...
Dec 4, 2019
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