Researchers report the neural code of the prefrontal cortex is more efficient than the amygdala in both humans and primates. The lower resistance of the amygdala to errors in humans may play a role in exaggerated survival responses, such as those seen in anxiety and PTSD.
A new study reveals researchers have identified areas of the brain which are different in those who regularly smoke and drink alcohol. Researchers discovered the medial orbitofrontal cortex, an area of the brain implicated in reward, has higher functional connectivity in drinkers. In those who smoke, the lateral orbiotfrontal cortex, an area of the brain linked to impulsive behavior, has lower functional connectivity. The study suggests nicotine may increase overall brain connectivity, which may lead to increased smoking behaviors.
People with Huntington's disease who participated in intellectually stimulating activities had less brain atrophy than those with the disease who did not take up such activities.
Researchers report personality traits and psychological health impact how we value personal control when making decisions. The study reports brain activity in the motivation system is dampened in those with passive personalities and depression when we receive rewards that we have earned or feel in personal control of situations.
A new neuroimaging study sheds light on how we relate to characters in stories. Researchers report, no matter how a story is relayed, brain networks associated with theory of mind are activated when participants associate with the protagonist. The study concludes our brains relate best to characters, no matter how the narrative is expressed.
Researchers report ADHD and conduct disorder exhibit similar, overlapping changes in the brain.
Researchers have identified a neural link between depression and sleep problems. The study reports brain regions associated with short term memory, self and negative emotions are strongly connected in those with depression, and this may lead to bad sleep quality.
Researchers report a single session of transcranial magnetic stimulation can significantly reduce drug cue reactivity for those with substance abuse problems.
Researchers have identified altered gene expression in the prefrontal area of the brain in those with schizophrenia. The study reports schizophrenia may have evolved as 'side effect' of human brain development.