positive modulation

positive modulation

[′päz·əd·iv ‚mäj·ə′lā·shən]
(electronics)
In an amplitude-modulated television system, that form of television modulation in which an increase in brightness corresponds to an increase in transmitted power.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Cenobamate's mechanism of action is not fully understood, but it is believed to work through two separate mechanisms: enhancing inhibitory currents through positive modulation of GABA-A receptors and decreasing excitatory currents by inhibiting the persistent sodium current.
Cenobamate is believed to work through two separate mechanisms: enhancing inhibitory currents through positive modulation of GABA-A receptors and decreasing excitatory currents by inhibiting the persistent sodium current.
demonstrate that copper-induced fibroblast senescence can be attenuated by resveratrol through positive modulation of protein quality control systems (namely, autophagy upregulation) and, consequently, improvement of cellular proteostasis.
This component presented a pattern of positive modulation during aversive emotional processing; the corresponding network included frontal, limbic, occipital, temporal, and cerebellar regions, so it was named "cerebellar-medial-frontal" (Table 2, Figures 4 and 5).
Results obtained from comparing neutral and fear conditions showed a positive modulation in a network predominantly cerebellar-medial-frontal, which also included activations in temporal regions.
The emerging research suggests that flavonoids and flavonols bring about changes in the oxidant defense mechanisms, a positive modulation of the immune system, improvement in vascular reactivity as well as some reductions in platelet reactivity, which could reduce the risk of a number of diseases.
(Irvine, CA) announced the publication of a paper reporting these findings, "Positive Modulation of AMPA Receptors Increases Neurotrophin Expression by Hippocampal and Cortical Neurons," in the January issue of the Journal of Neuroscience.
It is a logic signal, which when low is equal to 0 V and when high is equal to [V.sub.CC], indicating positive modulation. The Schmitt trigger helps to restore the shape of the demodulated digital output.
Positive modulation of NMDA receptors may have potential in the treatment of a range of neurological disorders associated with a range of cognitive, neurological and behavioral symptoms.
Positive modulation of NMDA receptors may have potential in the treatment of conditions associated with NMDA hypofunction and disorders associated with a high prevalence of anti-NMDA antibodies, such as anti-NMDA receptor encephalitis, as well as in disorders associated with reductions in plasma cerebrosterol, such as Huntington's disease and Alzheimer's disease.

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