How much information can we get from a spike?
Recent work at the Max Planck Institute for Brain Research (Theory of Neural Dynamics Group) reveals that by determining temporal pairwise correlations one can get closer to answering this question.
A key to understanding how the brain works is revealing the set of rules neurons use to communicate information between one another. The main means of neural communication are spikes, which are brief electrical pulses send out at some specific times.
A spike train generated by a neuron can be considered a long binary pattern where “1” denotes a spike and “0” its absence. How much information about the input can be recovered by observing spike trains which look for example like 00010100…?
How many combinations of 0’s and 1’s should be studied to “decode” the input message of a neuron? Especially the latter question is not trivial because nearly infinitely many combinations of 0’s and 1’s are possible.
Tatjana Tchumatchenko and her team now present a theoretical approach showing that only a limited number of binary patters is required and that correlations between pairs of spikes (between the time points of two “1”s) are key to solve the code in single neurons.
Their findings have been published in Nature Communications.
http://brain.mpg.de/news-events/news/news/archive/2017/march/article/how-much-in…
Media Contact
All latest news from the category: Life Sciences and Chemistry
Articles and reports from the Life Sciences and chemistry area deal with applied and basic research into modern biology, chemistry and human medicine.
Valuable information can be found on a range of life sciences fields including bacteriology, biochemistry, bionics, bioinformatics, biophysics, biotechnology, genetics, geobotany, human biology, marine biology, microbiology, molecular biology, cellular biology, zoology, bioinorganic chemistry, microchemistry and environmental chemistry.
Newest articles
Sea slugs inspire highly stretchable biomedical sensor
USC Viterbi School of Engineering researcher Hangbo Zhao presents findings on highly stretchable and customizable microneedles for application in fields including neuroscience, tissue engineering, and wearable bioelectronics. The revolution in…
Twisting and binding matter waves with photons in a cavity
Precisely measuring the energy states of individual atoms has been a historical challenge for physicists due to atomic recoil. When an atom interacts with a photon, the atom “recoils” in…
Nanotubes, nanoparticles, and antibodies detect tiny amounts of fentanyl
New sensor is six orders of magnitude more sensitive than the next best thing. A research team at Pitt led by Alexander Star, a chemistry professor in the Kenneth P. Dietrich…