Navigation Links
Researchers uncover cellular mechanisms for attention in the brain
Date:7/26/2013

Hanover, N.H.The ability to pay attention to relevant information while ignoring distractions is a core brain function. Without the ability to focus and filter out "noise," we could not effectively interact with our environment. Despite much study of attention in the brain, the cellular mechanisms responsible for the effects of attention have remained a mystery... until now.

In a study appearing in the journal Nature, researchers from Dartmouth's Geisel School of Medicine and the University of California Davis studied communications between synaptically connected neurons under conditions where subjects shifted their attention toward or away from visual stimuli that activated the recorded neurons. Using this highly sensitive measure of attention's influence on neuron-to-neuron communication, they were able to demonstrate that attention operates at the level of the synapse to improve sensitivity to incoming signals, sharpen the precision of these signals, and selectively boost the transmission of attention-grabbing information while reducing the level of noisy or attention-disrupting information.

The results point to a novel mechanism by which attention shapes perception by selectively altering presynaptic weights to highlight sensory features among all the noisy sensory input.

"While our findings are consistent with other reported changes in neuronal firing rates with attention, they go far beyond such descriptions, revealing never-before tested mechanisms at the synaptic level," said study co-author Farran Briggs, PhD, assistant professor of Physiology and Neurobiology at the Geisel School of Medicine.

In addition to expanding our understanding of brain, this study could help people with attention deficits resulting from brain injury or disease, possibly leading to improved screening and new treatments.


'/>"/>

Contact: Derik Hertel
kenneth.d.hertel@dartmouth.edu
603-650-1211
The Geisel School of Medicine at Dartmouth
Source:Eurekalert

Page: 1

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. UC Santa Barbara researchers discover genetic link between visual pathways of hydras and humans
3. Researchers attempt to solve problems of antibiotic resistance and bee deaths in one
4. UNH researchers find African farmers need better climate change data to improve farming practices
5. Ottawa researchers to lead world-first clinical trial of stem cell therapy for septic shock
6. Researchers uncover molecular pathway through which common yeast becomes fungal pathogen
7. Researchers print live cells with a standard inkjet printer
8. Columbia Engineering and Penn researchers increase speed of single-molecule measurements
9. Researchers reveal how a single gene mutation leads to uncontrolled obesity
10. Researchers discover novel therapy for Crohns disease
11. New paper by Notre Dame researchers describes method for cleaning up nuclear waste
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/25/2015)... SYDNEY , May 25, 2015  Australia,s market ... inception stage, although 2014 saw the advent of several ... on 24 April 2015 is expected to ignite interest ... devices in Australia . This in ... the industry and drive new partnerships amongst vendors and ...
(Date:5/22/2015)... , May 22, 2015 ... Market by Solution (2D, 3D, Thermal, Emotion, Forensic), by Software ... User (Government and Utilities, Consumer and Home) - Global ... to grow from $2.77 Billion in 2015 to $6.19 ... Browse 79 market data Tables and   ...
(Date:5/21/2015)... BOSTON , May 21, 2015 ... scientific potential of music for health, today announced a ... (BerkleeICE) . The partnership will center on collaboration on ...  As a first step in the collaboration, The Sync ... course on "Music as Medicine" in the 2015-2016 academic ...
Breaking Biology News(10 mins):Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 2Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 3Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 4Facial Recognition Market Worth $6.19 Billion by 2020 2Facial Recognition Market Worth $6.19 Billion by 2020 3The Sync Project Announces Partnership with Berklee College of Music's Institute for Creative Entrepreneurship 2The Sync Project Announces Partnership with Berklee College of Music's Institute for Creative Entrepreneurship 3
... the womb. Inserting a tiny laser into the mother,s uterus ... twins. Advancing the science that may allow doctors to deliver ... genetic diseases before birth. These are examples of the ... field in maternal-fetal medicine," said pediatric surgeon N. Scott Adzick, ...
... Irvine, Calif., Feb. 16, 2010 Butterfly experts have ... key role in explaining wing color diversity. Now, for the ... theory true at least in nine Heliconius ... to see ultraviolet colors also have UV-yellow pigment on their ...
... of induced pluripotent stem cells is that the all-purpose cells ... stem cells, but without the controversy. However, a new ... of the National Academy of Sciences comparing the ability ... cells of the brain has found that induced cells ...
Cached Biology News:Fetal surgery continues to advance 2Fetal surgery continues to advance 3Fetal surgery continues to advance 4Butterfly vision, wing colors linked, UCI study finds 2Induced neural stem cells: Not quite ready for prime time 2
(Date:5/26/2015)... 26. mája 2015 Kevin Xu ... rodiny prezidentom Barackovi Obamovi a Billovi Clintonovi za ... stratou Dr. Rongxiang Xu , otca Kevina. ... Dr. Xu bol pionier, inovátor, humanitárny ... odhodlanie v oblasti vedy a príkladné vedenie svojej ...
(Date:5/26/2015)... -- Oramed Pharmaceuticals Inc. (NASDAQ: ORMP ... on the development of oral drug delivery systems, announced ... the company,s Phase IIb trial of ORMD-0801, its oral ... (FDA). The submission was made under the company,s existing ... IIb study of ORMD-0801 for type 2 diabetics is ...
(Date:5/26/2015)... NEW YORK , May 26, 2015 ... NVGN ), announced today that it will present at the ... New York City at the Grand Hyatt ... Kelly , Novogen Chairman and CEO, is scheduled to begin at ... To access the webcast, go to http://wsw.com/webcast/marcum3/nvgn . ...
(Date:5/25/2015)... a science-driven healthcare company seeking to solve some of ... that Dame Marjorie Scardino , Chairman of the ... appointed to PureTech,s Board of Directors in the role ... Joi Ito , MIT Media Lab,s Director, has ... PureTech,s outgoing Chairman and co-founder, former Executive Vice President ...
Breaking Biology Technology:Dr. Rongxiang Xu, O legende 2Oramed Submits Protocol to U.S. FDA for Its Phase IIb Oral Insulin Study 2Oramed Submits Protocol to U.S. FDA for Its Phase IIb Oral Insulin Study 3Novogen to Present at the 2015 Marcum Microcap Conference 2Novogen to Present at the 2015 Marcum Microcap Conference 3Novogen to Present at the 2015 Marcum Microcap Conference 4PureTech Adds Dame Marjorie Scardino to Board of Directors, Names Joi Ito as Chairman of the Board and Expands Management Team 2PureTech Adds Dame Marjorie Scardino to Board of Directors, Names Joi Ito as Chairman of the Board and Expands Management Team 3
... , , , KALAMAZOO, Mich., Sept. ... it will participate in the following investor conferences: , , ... Global Healthcare Unplugged Conference , New York, New York , , ... Global Life Sciences Conference , New York, New York , , ...
... ViroPharma Incorporated (Nasdaq: VPHM ) today announced that ... during the month of September. , , ... present at the Rodman & Renshaw 11th Annual Global Healthcare Conference ... conference is being held at the New York Palace Hotel. , ...
... AURORA, Ontario, Sept. 3 Helix BioPharma Corp. (TSX, FSE: ... and chief operating officer, will present at the Rodman and ... Wednesday, Sept. 9, at the New York Palace Hotel in ... the Company,s leading product development programs L-DOS47 and Topical Interferon ...
Cached Biology Technology:Stryker to Present at Investor Conferences 2ViroPharma to Present at Several Upcoming Healthcare Conferences 2Helix Biopharma to Present at the Rodman & Renshaw 11th Annual Healthcare Conference 2Helix Biopharma to Present at the Rodman & Renshaw 11th Annual Healthcare Conference 3
... easy-to-use kits for arraying proteins of ... common lab equipment. DiscoverLight Protein Array ... your protein, cell lysate or antibody ... kits include specially designed nitrocellulose membranes ...
... formulated specifically for Alkaline Phosphatase conjugates. ... activity for both the enzyme and the ... This product has been chemically engineered ... a longer shelf life, resistance to various ...
Request Info...
NovaScreen offers cell biology, cell culture and molecular biology services for companies who lack a cell culture facility....
Biology Products: