Navigation Links
New Procedure Reveals the Secrets of the Brain

The activity of the brain has been mapped for the first time by MPI researchers using electrical microstimulation//.

The new procedure, developed by scientists from the MPI for Biological Cybernetics in Tübingen, accurately maps the activity in primate brains by means of the BOLD-Signal (Blood Oxygen Level Dependent Signal). The combination of electrical microstimulation and FMRT promises more precise insights into brain circuitry and its functional organization, reports Neuron.

Electrical microstimulation has been often used in the last two centuries to demonstrate causal links between neural activity and specific behaviors or cognitive functions. It has also been used for the treatment of several neurological disorders, such as Parkinson's disease.

However, understanding of the mechanisms by which electrical microstimulation can cause alternations in behaviors and cognitive functions was dependent on characterizing the cortical activity patterns that are elicited by stimulation locally around the electrode and in other functionally connected areas.

In a new study published in the December 2005, issue of Neuron, Andreas S. Tolias and Fahad Sultan, under the guidance of Prof. Nikos K. Logothetis from the Max Planck Institute for Biological Cybernetics in Tübingen, have for the first time developed a technique to record brain activity using the blood oxygen level dependent (BOLD) signal, while applying electrical microstimulation to the primate brain.

The researchers found that the spread of activity around the electrode in macaque area V1 is larger than expected from calculations based on passive spread of current, and therefore may reflect functional spread by way of horizontal connections. To support this functional trans-synaptic spread, they also obtained activation in expected projection sites in extra-striate visual areas, demonstrating the utility of their technique in uncovering in vivo functional connectivity m aps.

Use of the microstimulation/MRI technique in conscious, alert primates holds great promise for determining the causal relationships between activation patterns across distributed neuronal circuits and specific behaviors.

This method could also prove useful in understanding and optimizing the method of intra-cranial electrical stimulation in the treatment of neurological disease.
'"/>




Related medicine news :

1. Pancreatitis: Minimially Invasive Procedure Offers Long-Term Pain Relief
2. Dental Procedure Reduces Preterm Births
3. Hypnosis Found To Reduce Stress In Children During Medical Procedures
4. Patients Fare Better With Doctors Who Do More Angioplasty Procedures
5. Minimally Invasive Ear Implant Procedures Are Better
6. Diagnostic Procedure For Tuberculosis Made Easy
7. Cervical Procedures Increase Risk Of Pregnancy Complications
8. Health Minister Plans to Ease Bureaucratic Procedures
9. Are Babies Conceived By Fertility Procedures Safe From Genetic Disorders?
10. Blood Flow to Kidneys Better Restored by Less Invasive Procedures
11. Cancer Risk Cited From Radiation In New Procedures
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... ... established the certification process to promote standards of excellence for the field of ... scheduled for March 22 – 25, 2018 in Orlando, Florida at the Omni ...
(Date:10/13/2017)... ... October 13, 2017 , ... Many families have long-term insurance ... care insurance companies have a waiver for care if the client has a cognitive ... the family pays for care, is often waived, so the benefits from their insurance ...
(Date:10/13/2017)... , ... October 13, 2017 , ... ... be giving viewers the lowdown on sciatica in a new episode of "Success ... focuses on current events and innovation and investigates each subject in-depth with passion ...
(Date:10/12/2017)... , ... October 12, 2017 , ... ... now treating sleep apnea using cutting-edge Oventus O2Vent technology. As many ... sleep disorder characterized by frequent cessation in breathing. Oral appliances can offer significant ...
(Date:10/12/2017)... ... 12, 2017 , ... Asante, a nationally recognized health system ... their existing home health joint venture through an agreement, effective October 1, 2017, ... venture home health company with Asante, delivering clinically integrated care, for the past ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... Mich. , Oct. 2, 2017 Diplomat ... 8th Day Software and Consulting, LLC , and ... 8th Day Software, based in Tennessee ... LLC. 8th Day expands EnvoyHealth,s service offerings for health ... development. "In an ...
(Date:9/28/2017)... -- Hill-Rom Holdings, Inc. (NYSE: HRC), will host its ... on Friday, November 3, 2017, beginning at 7:00 a.m. ... 8:30 a.m. (CDT) / 9:30 a.m. (EDT). ... and guidance for 2018, Hill-Rom executives will also highlight ... and long-range financial outlook through 2020. ...
(Date:9/25/2017)... R.I. , Sept. 25, 2017  EpiVax, ... assessment, vaccine design, and immune-engineering today announced the ... on the development of personalized therapeutic cancer vaccines. ... has provided exclusive access to enabling technologies to ... Eng., MBA will lead EpiVax Oncology as Chief ...
Breaking Medicine Technology: