A mental disorder, also called a mental illness or psychiatric disorder; is a behavioral or mental pattern that causes significant distress or impairment of personal functioning. Such features may persistent; relapsing and remitting, or occur as a single episode. Many disorders have described; with signs and symptoms that vary widely between specific disorders. Such disorders may diagnosed by a mental health professional.
Functions of the brain
Therefore the causes of mental disorders are often unclear. But theories may incorporate findings from a range of fields. Mental disorders are usually defined by a combination of how a person behaves, feels, perceives, or thinks. This may with particular regions or functions of the brain; often in a social context.So a mental disorder is one aspect of mental health. Cultural and religious beliefs, as well as social norms, should taken into account when making a diagnosis.
Researchers at the University of California, Irvine have identified for the first time an imbalance in a key neural pathway that explains how some people reactivate negative emotional memories. The finding could help scientists unlock new ways to treat psychiatric disorders such as post-traumatic stress disorder. The study, Multiplexing of Theta and Alpha Rhythms in the Amygdala-Hippocampal Circuit Supports Pattern Separation of Emotional Information.
For decades, scientists have viewed emotional memory as a double-edged sword; while the entire emotional event is highly memorable, details of the event are often fuzzy. This lack of detailed recollection may lead to faulty reactivation of negative memories. For example, if someone is bitten by a dog; may become anxious around dogs of all breeds and sizes. Understanding the nature of emotional memory could have implications for the treatment of PTSD and other mental disorders.
The brain’s emotional center
According to this new study from UCI; an imbalanced communication between the brain’s emotional center, the amygdala, and its memory hub, the hippocampus; may lead to the failure to differentiate negative experiences that have overlapping features. On the other hand, a balanced dialogue between the amygdala and the hippocampus allows one to separate overlapping emotional experiences and make distinct memories.
The teamwork between the amygdala and hippocampus is like a yin and yang and may the key to disentangle overlapping emotional experiences and to overcome overreactions in a similar situation. “The findings provide a neural mechanism underlying this phenomenon and propose a circuit-level framework for possible neuropsychiatric therapy, such as deep brain stimulation; transcranial alternating current stimulation, and transcranial magnetic stimulation.
In cocnclusion, measurements collected from electrodes implanted by UCI Health neurosurgeons in seven patients with medication-resistant epilepsy as part of an assessment of their seizure activity. Electrode placement was guided exclusively by these patients’ clinical needs, Lin said.