Biomaterial Database

Chemical lesions of both dorsal and median raphe nuclei and changes in social and aggressive behaviour in rats. 1980

S E File, and J F Deakin

Microinjections of 5,7-dihydroxytryptamine into both the dorsal and median raphe nuclei resulted in 90% depletions of striatal and hippocampal 5-HT concentrations. Compared with vehicle-injected controls the lesioned rats showed reduced active social interaction scores in all four of the test conditions and also reduced levels of locomotor activity. The lesioned rats did not differ from the controls in their latency to start drinking in a novel environment; or in their response to intruder rats placed in their home cages, or in their behaviour as intruders when they were placed in the home-cages of unoperated rats. The difficulties of interpreting the behavioural effects of a lesion when the lesion produces hypoactivity, and the differences between the effects of these joint lesions of both dorsal and median raphe nuclei amd the effects of separate lesions of each nucleus are discussed.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009043	Motor Activity	Body movements of a human or an animal as a behavioral phenomenon.	Activities, Motor,Activity, Motor,Motor Activities
D011903	Raphe Nuclei	Collections of small neurons centrally scattered among many fibers from the level of the TROCHLEAR NUCLEUS in the midbrain to the hypoglossal area in the MEDULLA OBLONGATA.	Caudal Linear Nucleus of the Raphe,Interfascicular Nucleus,Nucleus Incertus,Rostral Linear Nucleus of Raphe,Rostral Linear Nucleus of the Raphe,Superior Central Nucleus,Central Nucleus, Superior,Incertus, Nucleus,Nuclei, Raphe,Nucleus, Interfascicular,Nucleus, Raphe,Nucleus, Superior Central,Raphe Nucleus
D001923	Brain Chemistry	Changes in the amounts of various chemicals (neurotransmitters, receptors, enzymes, and other metabolites) specific to the area of the central nervous system contained within the head. These are monitored over time, during sensory stimulation, or under different disease states.	Chemistry, Brain,Brain Chemistries,Chemistries, Brain
D001933	Brain Stem	The part of the brain that connects the CEREBRAL HEMISPHERES with the SPINAL CORD. It consists of the MESENCEPHALON; PONS; and MEDULLA OBLONGATA.	Brainstem,Truncus Cerebri,Brain Stems,Brainstems,Cerebri, Truncus,Cerebrus, Truncus,Truncus Cerebrus
D005479	Flurazepam	A benzodiazepine derivative used mainly as a hypnotic.	Apo-Flurazepam,Dalmadorm,Dalmane,Dormodor,Flurazepam Dihydrochloride,Flurazepam Hydrochloride,Flurazepam Mono-Perchlorate,Flurazepam Monohydrochloride,Staurodorm,Apo Flurazepam,Dihydrochloride, Flurazepam,Flurazepam Mono Perchlorate,Hydrochloride, Flurazepam,Mono-Perchlorate, Flurazepam,Monohydrochloride, Flurazepam
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000374	Aggression	Behavior which may be manifested by destructive and attacking action which is verbal or physical, by covert attitudes of hostility or by obstructionism.	Aggressions
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001522	Behavior, Animal	The observable response an animal makes to any situation.	Autotomy Animal,Animal Behavior,Animal Behaviors