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- W2116958494 endingPage "18" @default.
- W2116958494 startingPage "9" @default.
- W2116958494 abstract "Intra-nigral administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyrindine (MPTP) caused a lesion in the substantia nigra, compact part (SNc) and a specific loss of dopamine and its metabolites in the striatum of rats. The animals were then tested in the two-way active avoidance task. MPTP-treated animals presented lower learning scores in the training and test sessions, an effect that was not caused by motor impairment or by a decreased sensitivity to footshock since their reaction time to the footshock (unconditioned stimulus - UCS) was not reduced. These lower scores were also not attributable to lower acoustic sensitivity or to a slowing in the association of the sound cue (conditioned stimulus - CS) with the UCS since the reaction time to the CS in the active avoidance response did not differ between MPTP-treated and control groups. Therefore, these results are more properly attributable to an impairment of the memory acquisition and retention processes. In addition, this study is presented as a model of early Parkinson's Disease amnesia and is discussed in terms of the importance of the nigrostriatal pathway to memory acquisition and storage processes." @default.
- W2116958494 created "2016-06-24" @default.
- W2116958494 creator A5015170484 @default.
- W2116958494 creator A5025599160 @default.
- W2116958494 creator A5049490216 @default.
- W2116958494 creator A5055640077 @default.
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- W2116958494 creator A5076025989 @default.
- W2116958494 creator A5077864974 @default.
- W2116958494 creator A5081635107 @default.
- W2116958494 date "2001-09-28" @default.
- W2116958494 modified "2023-10-18" @default.
- W2116958494 title "Memory disruption in rats with nigral lesions induced by MPTP: a model for early Parkinson's disease amnesia" @default.
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