HOME >> BIOLOGY >> NEWS
Research study describes the role part of the brain plays in memory

larative memory.

This task depends on learning how to associate smells, a function that is commanded by a specific region of the brain, the nucleus basalis magnocellularis (NBM), which produces acetylcholine (a neurotransmitter that "transfers information" from one neurone to another through synapses). This chemical substance is essential in making the memory work correctly. The nucleus basalis magnocellularis equivalent in humans is the nucleus basalis Meynert. Precisely this is one of the regions of the brain that shown signs of degeneration among those who suffer from Alzheimer's (and who are often treated with drugs that help to produce acetylcholine).

The acetylcholine produced by the nucleus basalis is transferred to other regions of the brain, where it is "recognised" by receptor molecules. The research team examined the possibility of one part of the brain, the prelimbic prefrontal cortex, being linked to the social transmission of food preference. To do so, they applied a chemical compound to the experimental rats that neutralised the acetylcholine receptors (muscarinic cholinergic receptor) of this region. By blocking the receptor, the effect of the neurotransmitter was also neutralised and the changes in the animals' behaviour were observed.

The results demonstrated that the social transmission of food preference was clearly affected after neutralising the acetylcholine receptors. Researchers also verified that the effects were not due to other aspects that could alter the experiment, such as lack of olfactory perception, motivation or social interaction. The results therefore suggest that the prelimbic prefrontal cortex, via the use of acetylcholine, regulates cognitive operations (e.g. flexibility in behaviour, attention or strategic planning) that could be needed to correctly express social transmission of food preference, and therefore necessary for our declarative memory.


'"/>

Contact: Gemma Guillazo
Gemma.Guillazo@uab.es
34-935-812-543
Universitat Autonoma de Barcelona
17-Jul-2007


Page: 1 2

Related biology news :

1. Gilbert Foundation and American Fed for Aging Research award grants on Alzheimers disease
2. Research shows skeleton to be endocrine organ
3. Research aims to identify markers for menopausal women at risk for deadly blood clot
4. Research team enlightens the reasons for severe blindness
5. Research teams uncover risk genes for multiple sclerosis
6. Research shows NPD1 protects a key component of vision
7. Researchers find pathway that controls cell size and division
8. Researchers watch antibiotics, bacteria meet at atomic level
9. Researchers discover gene responsible for Restless Legs Syndrome
10. NY Stem Cell Foundations 2nd Annual Translational Stem Cell Research Conference
11. Researchers witness natural selection at work in dramatic comeback of male butterflies

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/7/2020)... ... August 06, 2020 , ... Alucio™, a fast-growing provider ... Eric Chen and Jessica Wong have joined the company’s leadership team as Vice ... Eric Chen heads development efforts for Alucio’s flagship product, Beacon, an innovative cloud-based ...
(Date:8/5/2020)... Fla. (PRWEB) , ... August 05, 2020 , ... Regenative ... cover two new innovations, CoreText™ and ProText™, making them the first Wharton’s jelly allografts ... defect using a syringe. The company’s solutions are the first Wharton’s jelly allograft product ...
(Date:7/31/2020)... ... July 30, 2020 , ... BioFactura, Inc. today announced a ... Joint Science & Technology Office—Chemical and Biological Defense (JSTO-CBD) of the Department of ... a highly efficient mammalian cell culture-based bioprocess suitable to meet surge requirement needs ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... ... July 29, 2020 , ... Editas Medicine, Inc. (Nasdaq: ... advanced delivery technologies, development, and manufacturing solutions for drugs, biologics, cell and gene ... strategic partnership whereby Catalent will provide support for the development, manufacturing, and clinical ...
(Date:7/22/2020)... TORONTO (PRWEB) , ... July 22, 2020 , ... Join ... and John Lorenc, Sr. Manager Regulatory Solutions, in a one hour live webinar ... is the regulating body in China for drugs and medical devices. Specifically, for medical ...
(Date:7/18/2020)... ... 2020 , ... dicentra , a leading Contract Research ... is pleased to announce that Charles Galea has joined its clinical trials division ... an accomplished and results-driven sales executive with over 10 years of expertise in ...
(Date:7/10/2020)... ... July 09, 2020 , ... ... today announced the hiring of Allen R. Nissenson, M.D., F.A.C.P., as its Chief ... clinical development of Sentien’s lead product, SBI-101. Dr. Nissenson serves as an ...
Breaking Biology Technology:
Cached News: