The spontaneous neuronal activity of meso-accumbens dopaminergic neurons was
recorded in unanesthetized rats withdrawn from chronic morphine administration (15 days) …

The activity of mesolimbic dopaminergic neurons was investigated in rats at various times
after a chronic regimen of morphine, which produced, upon suspension, a marked somatic …

At various time points following acute and chronic administration of morphine to rats,
dopamine transmitter metabolism and neuronal activity were determined. Following acute …

A considerable body of evidence indicates that opiates have an important influence on
midbrain dopaminergic neurons. However, little data exist concerning the effects of opiates …

To clarify the effects of withdrawal from chronic morphine treatment on cerebral dopamine
(DA) turnover, we have measured the α-methyl-p-tyrosine (αMT)-induced depletion of DA in …

Accordingly, in the present experiment young Wistar rats drank increasing
concentrations(0.1-0.5 mg/mI) of morphine in water, or water alone, for 37 days. Half the rats …

Intravenous (IV) administration of 10 ug/kg of morphine sulfate increased the firing rate of
Type A dopamine neurons but decreased the extracellular activity of Type B dopamine cells …

The effect of local application of morphine (5 μg) into the ventral tegmental area (VTA) or
substantia nigra, pars compacta (SN c) on spontaneous activity was studied in the rat …

Reliable aggression was seen in rats which were grouped 30 days after undergoing
continuous withdrawal from morphine. This withdrawal aggression, associated with long …

The participation of amygdaloid and striatal structures in the various signs of morphine
withdrawal syndrome (MWS) has been investigated using two complementary approaches …