Networks are the engines that drive our brain, they exist at every level of organization. Genes, proteins, and neurons all form highly integrated complex networks.
Cognition results from the integration of many simple processes, distributed throughout the brain. Specific brain regions do not correlate with an entire cognitive function, but instead contribute as basic processes in the overall cognitive operation. Even the most trivial of tasks requires the coordination of several distinct brain regions. Major cognitive operations such as language, memory, thinking, learning, perception and attention are all produced by serial and parallel networks of several brain regions. The individual mechanisms that contribute to these networks are not structured like a series of links on a chain, where the loss of one link breaks the chain completely. Rather, the brain is a web of interacting units. When a single unit is lost (by damage to the brain), the web does not fall apart. The remaining parts of the brain can offset the loss of a single unit, functionally reorganizing to compensate the deficit. In many ways, networks are the engines that drive our brain â€“ they exist at every level of organization, from genes and proteins, through cells and gross anatomical structures.
networks, complex, brain, neuron, cell, protein, gene, function,
- ID: 1443
- Source: DNALC.G2C
Doctor Josh Dubnau explains that the cyclic AMP (cAMP) signaling network can receive signals from outside the cell and use the signal to alter the function of the cell.
Doctor Josh Dubnau explains that the function of signaling networks is to receive signals from outside the cell, and transmit that information into the cell, in some cases to the nucleus.
Doctor Abraham Zangen discusses the key structures underlying the brain reward system, a complex neural network that includes the nucleus accumbens and hippocampus.
Professor Wayne Drevets explains that specific glial cells known as oligodendrocytes may be decreased in the brains of individuals who have bipolar disorder or major depressive disorder.
Cognitive information is encoded in patterns of nervous activity and decoded by molecular listening devices at the synapse. Professor Seth Grant explains how different patterns of neural firing are critical to cognition.
A overview of perception-related content on Genes to Cognition Online.
Doctor Brian Bacskai define astrocytes, or astroglia as brain cells that have an active structural role in keeping the brain together.
Professor Tom O'Dell discusses the importance of electrophysiology to the study of cognition.
Professor David Anderson explains that individual genes do not exist in a vacuum. Rather, genes interact with one another as part of a network.
Professor William Kristan explains that synaptic networks differ from neuronal networks in that they are relevant to HOW cells interact.