Also found in: Dictionary, Thesaurus, Wikipedia.
Related to excitatory: excitatory amino acids


Tending to produce excitation.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
In contrast, the amplitude of the average number density evolution tends to increase if the excitatory coupling strength increases.
Rather than focus on the dysregulation of inhibitory ([GAD.sub.65/67] and GLRA3) and excitatory (GluR3) neurotransmission within the dorsal horn, near to the injury, in the present work the temporal (1 and 12 weeks) and spatial expression profiles of these markers were investigated along the thoracic and lumbar cord.
In fact, the considered network has no intrinsic structure at all; it is completely homogenous and chaotic in the sense that all neurons of the same kind and all connections between the same kinds of neurons (excitatory [right arrow] excitatory, excitatory [right arrow] inhibitory, etc.) have the same distributions of weights, delays, connection probabilities, and so forth.
In the olfactory bulb, MC has an excitatory effect on GC, while GC has an inhibitory effect on MC.
"Like speaking louder to your companion at a noisy cocktail party, serotonin amplifies excitatory interactions in brain regions important for emotional and cognitive function, and apparently helps to make sure that crucial conversations between neurons get heard," says Scott ML Thompson, PhD, lead author and interim chairman of the department of Physiology at the University of Maryland School of Medicine.
for inhibitory case, where w(t) is the Heaviside function, A and B are average excitatory and inhibitory synaptic gains which determine the maximal amplitude of the postsynaptic potentials, and a and b are connected to both the membrane average time constant and the average distributed time delays in the dendritic tree.
Excitatory amino acids, schizophrenia, and amyotrophic lateral sclerosis.
Previous investigations of excitatory stimulus effects and inhibitory aftereffects with wheel-running reinforcement have produced inconsistent results.
Other researchers found that hypocretin has a negative feedback relationship with GABA and a positive feedback relationship with the excitatory neurotransmitter glutamate.
Numerous asymmetric and symmetric chemical synapses, corresponding to the excitatory and inhibitory synapses, respectively, were seen in the neuropile region.
Dopamine: An excitatory neurotransmitter that plays a role in the reward system in the brain and possibly in the reinforcing properties of alcohol.
Sustained opioid use down-regulates opioid receptors and upregulates excitatory receptors.

Full browser ?