Navigation Links
Mechanism for memory revealed in neurons of electric fish

Researchers from The University of Texas at Austin studying electric fish have gained new insight into how memory is stored at the level of neurons.

Their finding, published in the Feb. 16 issue of Neuron, could help researchers better understand memory formation and neural disorders like epilepsy in humans.

Dr. Harold Zakon, Dr. Jörg Oestreich and colleagues show that when electric fish zap each other in dark waters, their neurons store a memory of the sizzling communiqué by turning on special cell membrane channels.

The channels give the fish neurons the ability to retain a memory long after its original stimulus is gone.

"There is short-term stimulation that results in long-term changes in excitability," says Zakon, professor of neurobiology. "Essentially, it is memory."

The electric fish studied by Zakon and Oestreich discharge electrical signals to survey their environment and communicate with each other.

"Every time they discharge, it's kind of like they are opening their eyes and closing them," says Zakon. "Each pulse of electricity is a snapshot of the environment. These guys are swimming around and discharging at a very regular frequency. They're digitizing their environment."

But a problem occurs when the fish are close to each other. They can jam each other's electrical signals. In response, one of the fish will jump to a higher frequency to avoid the jamming signal, emitting more electrical pulses per second than its neighbor.

Oestreich and Zakon found that once the jamming avoidance has started, the fish's neurons continue to discharge at a higher frequency, even after its neighbor fish may have swum away.

The researchers discovered that the neurons' memory was not caused by increased flow of glutamate to their synapses. Glutamate is the major excitatory neurotransmitter in the nervous system and is involved in the processes of learning and memory. They blocked glutamate and fou
'"/>

Source:University of Texas at Austin


Page: 1 2

Related biology news :

1. Mechanism for the captation of nutrients in plants- unknown to date
2. Mechanism regulating tooth shape formulation found
3. Mechanism for Epstein-Barr virus proteins role in blood cancers discovered
4. Mechanism identified for promising neurological drug
5. Mechanism for neurodenegerative diseases linked to transport proteins
6. Mechanisms involved with tumor relapse identified
7. Mechanism of nicotines learning effects explored
8. Rats infected as newborns grew up vulnerable to memory problems during an immune challenge
9. Structure-building cell signals also may influence learning and memory
10. Mice brains shrink during winter, impairing some learning and memory
11. Montreal researchers probe the genetic basis of memory
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Mechanism for memory revealed neurons electric fish

(Date:6/17/2015)... GARDENS, Fla. , June 17, 2015 /PRNewswire/ ... solutions, today announced that its U.are.U ® ... Togo,s Eateries, Inc., a ... casual sandwich chain, to increase security, improve accountability ... fingerprint readers enable instant, non-repudiable identity confirmation for ...
(Date:6/16/2015)... 16, 2015  With the increasing number and severity ... top concern. The recent compromise of Federal employee ... strong authentication within government agencies. HYPR Corp. ... password (OTP) authenticator, has been submitted for testing and ... 3 validation for tamper proofing. The ...
(Date:6/16/2015)... Sweden , June 16, 2015 ... from previously communicated that it will amount to at least ... MSEK. Due to the rapid increase in market growth and ... the previously communicated guidance that revenue for 2015 will exceed ... will amount to approximately 2,200 MSEK. Due to ...
Breaking Biology News(10 mins):Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 2Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 3Government Ready Biometric Security Approaching as HYPR Corp. Files FIPS 140-2 Level 3 Validation for Its Proprietary Biometric Token 2Government Ready Biometric Security Approaching as HYPR Corp. Files FIPS 140-2 Level 3 Validation for Its Proprietary Biometric Token 3Fingerprint Cards Raises the Revenue Guidance for Q2 2015 and for the Full Year 2015 2Fingerprint Cards Raises the Revenue Guidance for Q2 2015 and for the Full Year 2015 3
... times lethal, life on the cellular level comes into vivid ... "Celldance 2011," the American Society for Cell Biology,s (ASCB) film ... structural and functional unit of all living organisms, in video ... ASCB 2011 annual meeting in Denver. The top ...
... has announced the winners of its International Relations ... 56th Annual Meeting at the San Diego Convention ... The purpose of these awards is to foster ... scientists working in countries experiencing financial difficulties. Recipients ...
... scientists and colleagues have produced the most comprehensive mathematical ... exposed to environmental change. The research, ... Dec. 2 in the journal Science . ... IPM, unites various sub-disciplines of population biology, including population ...
Cached Biology News:'Celldance 2011' reveals beauty and danger in microscopic world of cells 2Biophysical Society Announces winners of 2012 International Relations Committee travel awards 2Biophysical Society Announces winners of 2012 International Relations Committee travel awards 3Biophysical Society Announces winners of 2012 International Relations Committee travel awards 4Powerful mathematical model greatly improves predictions for species facing climate change 2Powerful mathematical model greatly improves predictions for species facing climate change 3
(Date:7/2/2015)... July 2, 2015 College of DuPage students ... are gaining invaluable real-world experiences while serving biophysics internships ... The students will be working as a ... group at IIT. The internship came about from ... , Physics; Dr. Kathy Finan , Biology; and ...
(Date:7/2/2015)... ... July 02, 2015 , ... ... of surgical instruments in Orthopedics, announced today the acquisition of Turner Medical, ... largest provider of surgical instruments to the Spine Industry. The acquisition of Turner ...
(Date:7/1/2015)... ... 2015 , ... The next-generation sequencing (NGS) clinical market is poised for huge ... industry. BCC Research reveals in its new report that the market drivers of this ... growing need for better diagnostics as part of a molecular diagnostics trend. , The ...
(Date:7/1/2015)... 1, 2015 Isagenix International, a leading global ... Gold, three Silver, and three Bronze Stevie® Awards at ... Chicago this month.The American ... awards program in the U.S. "Winning ... in developing leaders, cultivating talent, creating a unified team, ...
Breaking Biology Technology:COD Students Participate in Prestigious Summer Internships 2In'Tech Medical Acquires Turner Medical to Become a World Leader in Orthopedic Contract-Manufacturing 2In'Tech Medical Acquires Turner Medical to Become a World Leader in Orthopedic Contract-Manufacturing 3NGS-Based Diagnostics, the ‘Must-Have Platform’, Sends Market Segment CAGRs Soaring According to BCC Research 2NGS-Based Diagnostics, the ‘Must-Have Platform’, Sends Market Segment CAGRs Soaring According to BCC Research 3Isagenix Earns Nine American Business Awards 2Isagenix Earns Nine American Business Awards 3
... Ill. Researchers at the University of Illinois have ... faster. The technique uses self-assembled, self-aligned, and defect-free nanowire ... to appear in the IEEE (Institute of Electrical and ... of I. electrical and computer engineering professor Xiuling Li ...
... N.J., April 20 Virco Lab, Inc. a leader ... a US collaboration with SmartGene, Inc., a provider of ... data to provide laboratories and physicians with greater insight ... viewing and storage of HIV resistance reports to an ...
... CARLSBAD, Calif., April 20 Isis Pharmaceuticals, Inc. (Nasdaq: ... its collaborators presented results on antisense inhibition of novel ... during the American Association for Cancer Research (AACR) meeting. ... the feasibility of targeting a large non-coding RNA, sigma ...
Cached Biology Technology:Self-assembled nanowires could make chips smaller and faster 2Virco Lab, Inc. Enters Into Collaboration with SmartGene, Inc. Enhancing HIV Resistance Test Services for Laboratories and Physicians 2Virco Lab, Inc. Enters Into Collaboration with SmartGene, Inc. Enhancing HIV Resistance Test Services for Laboratories and Physicians 3Virco Lab, Inc. Enters Into Collaboration with SmartGene, Inc. Enhancing HIV Resistance Test Services for Laboratories and Physicians 4Isis and Partners Present New Research at the American Association for Cancer Research 2009 Annual Meeting 2Isis and Partners Present New Research at the American Association for Cancer Research 2009 Annual Meeting 3
... CrysScreen is a software package that ... interface for custom buffer creation, set-up ... in crystallization trials. The software helps ... in automated protein crystallography: ...
The PROTEAN II slab gel casting stand is a component of the PROTEAN II XL and xi casting apparatus. It is supplied with gaskets....
Mouse monoclonal [H4B4] to LAMP2 - Lysosome Marker (Phycoerythrin) ( Abpromise for all tested applications). entrezGeneID: 3920 SwissProtID: P13473...
... imaging software for the microscopy market ... cameras, components and peripherals with powerful ... Its intuitive interface simplifies workflow and ... providing powerful features such as image ...
Biology Products: