Antonella Valenti

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Two-week-old quails (Coturnix coturnix) were trained to discriminate food grains scattered randomly on a background of small pebbles of similar size adhering to the floor and differing from the grains in texture and hue ("pebble floor task"). Quails tested binocularly or with only their right eye in use showed less pecking to the pebbles and more pecking to(More)
Quantitative autoradiographic analysis revealed changes in [3H]flunitrazepam (a benzodiazepine agonist) binding in the anterior hypothalamus nucleus, the medial preoptic area and the cortico-medial amygdala nucleus following in vivo estradiol. The administration of 4 mg of progesterone, but not 1 mg, increased the binding of [3H]flunitrazepam in the(More)
Cerebellar projection from raphe nuclei were investigated in rabbit by using retrograde transport of HRP and serotonergic mapping by direct fluorescence. A close topographical correlation between the HRP labeled cells and the serotonergic neurons has been observed. The current study has demonstrated the presence of paramedian and lateral cells whose(More)
Monoamine-oxidase (MAO) activity was detected in rat pineal gland with dopamine, 5-hydroxytryptamine (5-HT), norepinephrine and tryptamine as substrates, and nitroblue tetrazolium salt as electron acceptor. Pinealocytes stained deeply when 5-HT was the substrate. Dopamine and tryptamine substrates gave similar patterns, with moderate activity in the(More)
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