Researchers at the University of California, Riverside have developed a technique to selectively erase fear memories by weakening connections between the nerve cells involved in forming such memories. Memories can be triggered by stimuli such as sights, sounds, and smells. Some memories are formed during traumatic events, and in this case stimuli associated with the...
Category: <span>Mental health</span>
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Transcranial magnetic stimulation aids PTSD in eating disorders
(HealthDay)—Repetitive transcranial magnetic stimulation (rTMS) of the dorsomedial prefrontal cortex (DMPFC) seems to be beneficial for treatment of posttraumatic stress disorder (PTSD) in patients with eating disorders, according to research published online Aug. 16 in the International Journal of Eating Disorders. D. Blake Woodside, M.D., from the University Health Network in Toronto, and colleagues presented a...
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Study suggests serotonin may worsen tinnitus
Millions of people suffer from the constant sensation of ringing or buzzing in the ears known as tinnitus, creating constant irritation for some and severe anxiety for others. Research by scientists at OHSU shows why a common antidepressant medication may worsen the condition. The study, to be published Aug. 22 in the journal Cell Reports, focused...
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Test reveals potential treatments for disorders involving MeCP2
IMAGE: THIS IS DR. HUDA ZOGHBI. Having twice the normal amount of the protein MeCP2, a condition called MECP2 duplication syndrome, causes severe progressive neuropsychiatric disorders that include intellectual disability, autism spectrum disorders, motor dysfunction and other medical complications. In animal models, normalization of MeCP2 levels has largely reversed the neurological problems, opening the possibility...
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Researchers Have Discovered the Mechanism for Memory Retrieval
IN BRIEF Researchers have discovered that memories form and get recalled along two distinct circuits in the brain. This could be relevant to the study of Alzheimer’s disease. WHERE MEMORIES FORM New research suggests that the subiculum, a part of the hippocampus that is rarely studied, is central to the memory retrieval process. This work also...
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Poor REM Sleep Linked To Increased Dementia Risk: Study
Researchers found a link between low levels of rapid eye movement (REM) sleep and dementia risks. Participants who got less REM sleep had higher risks of developing dementia. Sleep And Dementia Poor sleep has been previously linked to increased Alzheimer’s and dementia risks in various studies. However, there has also been mixed results when it comes to the exact...
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Surprising neural communication mechanism revealed
A new study has made the surprising discovery that neurons are capable of controlling how much dopamine they release, which goes against what specialists have hitherto believed. The newly discovered mechanism might hold significant implications for understanding disorders promoted by abnormal dopamine signaling. Neurons are basic structures of the central nervous system, and they communicate with...
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Brain Stimulation Therapies
Overview Brain stimulation therapies can play a role in treating certain mental disorders. Brain stimulation therapies involve activating or inhibiting the brain directly with electricity. The electricity can be given directly by electrodes implanted in the brain, or noninvasively through electrodes placed on the scalp. The electricity can also be induced by using magnetic fields...
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Rehabilitation Treatment and Progress of Traumatic Brain Injury Dysfunction
Abstract Traumatic brain injury (TBI) is a major cause of chronic disability. Worldwide, it is the leading cause of disability in the under 40s. Behavioral problems, mood, cognition, particularly memory, attention, and executive function are commonly impaired by TBI. Spending to assist, TBI survivors with disabilities are estimated to be costly per year. Such impaired...
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Brain Stimulation Without Wires
Electrical brain stimulation has been an effective technique for managing a variety of neurological conditions, yet it’s severely limited because of the need to run wires to the treatment sites. In order to be able to deliver neurostimulation just about anywhere within the brain, researchers at MIT have developed a minimally invasive technique that relies...