Neuroscientists at the David Geffen School of Medicine at UCLA have discovered precisely where and how to electrically stimulate the human brain to enhance people’s recollection of distinct memories. People with epilepsy who received low-current electrical pulses showed a significant improvement in their ability to recognize specific faces and ignore similar ones.
Eight of nine patients’ ability to recognize the faces of specific people improved after receiving electrical pulses to the right side of the brain’s entorhinal area, which is critical to learning and memory. However, electrical stimulation delivered to the left side of the region, tested on four other people, resulted in no improvement in the patient’s recall.
The study builds on 2012 UCLA research published in the New England Journal of Medicine demonstrating that human memory can be strengthened by electrically stimulating the brain’s entorhinal cortex.
The researchers followed 13 people with epilepsy who had ultrafine wires implanted in their brains to pinpoint the origin of their seizures. The team monitored the wires to record neuron activity as memories were formed, then sent a specific pattern of quick pulses back into the entorhinal area.
Using the ultrafine wires allowed researchers to precisely target the stimulation but use a voltage as low as one-tenth to one-fifth as strong as had been used in previous studies.
The study suggests that even low currents of electricity can affect the brain circuits that control memory and human learning. It also illustrates the importance of precisely targeting the stimulation to the right entorhinal region. Other studies that applied stimulation over a wide swath of brain tissue have produce conflicting results.
Electrical stimulation could offer promise for treating memory disorders like Alzheimer’s disease.
The Latest on: Electric brain stimulation
- Deep-Brain Stimulation Improves Some Urinary Function in Patients With Parkinson Diseaseon July 3, 2019 at 7:37 am
For patients who do not respond to conservative treatments, clinical researchers often recommend DBS surgery, which applies high-frequency electrical stimulation to deep brain structures. The ... […]
- Electroceutical Devices Market Trends Estimates High Demand By 2026on July 3, 2019 at 6:54 am
Over a period of time, electroceutical expanded their applicability to include deep brain stimulation and the electrical stimulation of the vagus nerve. Electroceuticals are also called as ... […]
- Neuroprosthetics Market 2019| Drivers, Opportunities, Trends, and Forecast by 2024 - MRE Reporton July 2, 2019 at 10:40 am
By Technique Analysis this market is segmented on the basis of Spinal Cord Stimulation, Deep Brain Stimulation, Vagus Nerve Stimulation, Sacral Nerve Stimulation and Transcranial magnetic Stimulation. ... […]
- Chronic Stroke Patients Could Benefit from Neurotech-Aided Rehabilitationon July 2, 2019 at 5:00 am
The trial uses a new experimental design with a personalized therapy approach using brain-computer interfaces, robotics, functional electrical stimulation, and brain stimulation specifically chosen to ... […]
- A New Approach to Treat Mental Illness: Electrical Engineeringon June 28, 2019 at 6:00 am
This knowledge has helped advance new adaptable electrical brain stimulation devices to treat movement disorders. It has spurred non-invasive ultrasonic technology that may soon allow physicians to ... […]
- New approach to post-stroke rehabilitation proposedon June 26, 2019 at 11:13 pm
non-invasive neuromodulation methods such as electric and magnetic stimulation of various parts of the nervous system have been increasingly used to rehabilitate patients after a stroke. Stimulation ... […]
- Does stimulation of the brain's dorsal anterior insula trigger ecstasy?on June 24, 2019 at 8:51 am
They studied functional connectivity changes in several brain areas during the induction of ecstatic auras by direct electrical stimulation of the dorsal anterior insular cortex in patients ... […]
- Brain Stimulation Can Manipulate Dream Contenton June 23, 2019 at 9:06 am
Research thus far suggests that similar areas of the brain are active during both ... and one night with sham-stimulation. During the night with tDCS, the experimenters applied 1mA electric current to ... […]
- Electric Brain Stimulation Shown to Improve Memory Functionon June 18, 2019 at 10:25 am
Our memories often seem ephemeral, coming and going without any obvious reasons. Researchers at UCLA seem to have come up with a way to bring some memories back that would probably otherwise have gone ... […]
- How electrical stimulation reorganizes the brainon June 10, 2019 at 10:01 am
Recordings of neural activity during therapeutic stimulation can be used to predict subsequent changes in brain connectivity, according to a study of epilepsy patients published in JNeurosci. This ... […]
via Google News and Bing News