Rats with lesions in the median raphe nucleus (MR group) or in both the dorsal and median
raphe nuclei (R group) were compared with operated control animals on the following …

The cell bodies of 5-HT containing neurons that innervate the limbic forebrain are mainly
found in the dorsal raphe nucleus and in the median raphe nucleus (MRN). To assess the …

Lesions were produced in the median (n= 8), dorsal (n= 7) or both (n= 7) midbrain raphe
nuclei and their effects on behavior (days 16–54 postoperatively) compared to that of …

The effects of lesions of the raphe nuclei on opiate-induced antinociception and brain
serotonin (5-HT) levels were investigated. Lesions of the medial raphe nucleus effectively …

Lesions in the central superior nucleus of Bechterew (also termed the median raphe
nucleus) in cats resulted in a 35% reduction in forebrain serotonin (5-HT) concentration and …

Electrolytic lesions were placed in either the dorsal or median raphe nuclei of 32 male adult
Sprague-Dawley rats. Both lesions produced significant reductions in forebrain serotonin …

Locomotor activity and regional forebrain levels of serotonin (5-HT) were measured
following the placement of electrolytic lesions in either the dorsal or median raphe nucleus …

Radiofrequency lesions of the median raphe (MR) nucleus did not alter daily water intake in
the rat, whereas electrolytic lesions produced a transient polydipsia only during the first day …

Abstract Microinjections of 5, 7-dihydroxytryptamine into both the dorsal and median raphe
nuclei resulted in 90% depletions of striatal and hippocampal 5-HT concentrations …

Doses of morphine, devoid of effect in the hot-plate or the tail electrical stimulation tests,
became analgesic if rats had been previously stimulated in the nucleus raphe dorsalis but …