Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1978-10-25
pubmed:abstractText
A dose-response analysis was performed on D-amphetamine- and methylphenidate-induced changes in neuronal activity in the neostriatum of immobilized, phenidate-induced changes in neuronal activity in the neostriatum of immobilized, locally anesthetized rats. Whereas a marked depression of firing rate characterized the response to intraperitoneal injections of 2.5 mg/kg D-amphetamine or 10 mg/kg methylphenidate, increasing the dose (5.0--7.5 mg/kg D-amphetamine and 20--25 mg/kg methylphenidate) shifted this response pattern to a prolonged increase in activity. Both stimulant-induced increases and decreases in neostriatal activity are reversed by 2.0 mg/kg haloperidol. In contrast to the response of neostriatal neurons, the firing rate in the substantia nigra pars compacta was inhibited by both stimulants, even at doses that increased the activity of neurons in the neostriatum. The possible mechanisms underlying these drug-induced changes in firing rate are discussed along with the behavioral implications of a stimulant-induced dose-dependent shift in neostriatal unit activity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
150
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
353-66
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1978
pubmed:articleTitle
Dose-dependent biphasic alterations in the spontaneous activity of neurons in the rat neostriatum produced by d-amphetamine and methylphenidate.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.