Home » Archives by category » Psychology news (Page 141)

Traces of trauma in the young brain — and how to erase them

In research conducted on mice a team discovered brain mechanisms that go awry as a result of exposure to trauma in infancy and showed that these changes may be reversible if treated early.   

What happens in the brain while daydreaming?

During quiet waking, brain activity in mice suggests the animals are daydreaming about a recent image. Having daydreams about a recently viewed image predicted how the brain would respond to the image in the future. The findings provide a clue that day…

How stress activates neurons that disrupt sleep

New research reveals that neurons in the preoptic hypothalamus — the region of the brain that regulates sleep and body temperature — are rhythmically activated during non-rapid eye movement sleep (NREM). Stress activates these brain cells out of turn…

Smoking causes brain shrinkage, study finds

Smoking shrinks the brain and effectively causes premature brain aging, according to a new study. Quitting smoking prevents further loss of brain tissue but doesn’t restore the brain to its original size.

Genetic ‘protection’ against depression was no match for pandemic stress

Living through a historic pandemic while handling the stress of the first year of college sent one-third of students in a new study into clinical depression. That’s double the percentage seen in previous years of the same study. And while certain gene…

Advanced MRI technology detects changes in the brain after COVID-19

Researchers have examined the brains of 16 patients previously hospitalized for COVID-19 with persisting symptoms. They have found differences in brain tissue structure between patients with persisting symptoms after COVID-19 and healthy people. Their …

Study reveals a protein called snail may play a role in healing brain injury

A new study provides us with a better understanding of how the brain responds to injuries. Researchers have discovered that a protein called Snail plays a key role in coordinating the response of brain cells after an injury.  

What happens when the brain loses a hub?

Neuroscientists have obtained the first direct recordings of the human brain in the minutes before and after a brain hub crucial for language meaning was surgically disconnected. The results reveal the importance of brain hubs in neural networks and th…

Discrimination during pregnancy may alter circuits in infants’ brains

Racial discrimination and bias are painful realities and increasingly recognized as detrimental to the health of adults and children. These stressful experiences also appear to be transmitted from mother to child during pregnancy, altering the strength…

Why do some older adults show declines in their spatial memory?

A study has investigated the possible scenarios that could lead to waning memory in some older people.