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Tag: "circuits" at biology news

Brains response to visual stimuli helps us to focus on what we should see, rather than all there is to see

...renia is a problem with organization of inhibitory circuits of neurons, and now we are uncovering how these sp..., we can then trace what happens when these neural circuits are mis-wired," he added. The Nature Neuroscience report is the latest published study in a series ...

An essential regulator of body weight revealed

...humans, this result would be the same, because the circuits are the same." And he speculates that mutations in human genes that affect the survival of these neurons or their ability to respond to hormonal signals could alter eating behavior and body weight regulation. Now that his lab has demonstrated that N...

When in danger humans are similar to a deer in the headlights

...onted with threatening stimuli, mediated by neural circuits that promote defensive survival," author Eliane Volchan explains. This study is published in the current issue of Psychophysiology. Media wishing to receive a PDF of the full article please contact journalnews@bos.blackwellpublishing.net Psychophys...

Rodent social behavior encoded in junk DNA

...s and nurture their young. "If you think of brain circuits as locked rooms, the vasopressin receptor as a loc...nd vasopressin as the key that fits it, only those circuits that have the receptors can be 'opened' or influenced by the hormone," added Hammock. "An animal's r...

Gap-climbing fruit flies reveal components of goal-driven behaviors

...ing the underlying control principles and neuronal circuits in invertebrates rather than in mice or cats involves fewer ethical problems and is less-expensive research. Using noninvasive neurogenetic techniques for the analysis of the underlying motor-control system, Pick and Strauss showed that in order to ...

Endocannabinoids ?the brain's cannabis ?demonstrate novel modes of action to stress

...e "actions of the endocannabinoids on the synaptic circuits that control the activity of the hypothalamic neur..., "but we think that the basic ways in which these circuits work is very similar in all mammals. These brain circuits are very old in evolutionary terms, and th...

Mapping neuron connections in the brain

...d be used to create computer simulations of neural circuits involving tens of thousands of neurons with biologically realistic connections--and provide a practical way to begin untangling the mysteries of the brain. ### Citation: Amirikian B (2005) A phenomenological theory of spatially structured local syn...

Researchers make surprise discovery that some neurons can transmit three signals at once

... synapses evolve and are assembled into functional circuits in the developing brain," he added. Many brain disorders, like epilepsy, schizophrenia and depression, involve deficits that prevent normal inhibition of cells. Dr. Kandler's research could eventually provide insight into the biological cause of the...

Examination of internal 'wiring' of yeast, worm, and fly reveals conserved circuits

...lls work. A description of all protein-interaction circuits would make such a model possible. "We'd like to simulate diseased cell types, such as cancer cells, and then simulate the effects of drugs on those diseased cells," said Ideker. "Ultimately, we think this kind of a systems biology approach will have ...

Nanogen Issued Patent for Electronic Microarray With Memory

...ng molecular diagnostic tests. Using local memory circuits provides for precise control of the currents delivered to individual electrodes on the array, while minimizing the utilization of "off-chip" circuitry and overall system costs. The electric potential is controlled at each of the NanoChip's 400 test s...

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