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Failure of dorsal bundle lesions in rats to increase distractibility to a low intensity tone

Authors
Journal
Pharmacology Biochemistry and Behavior
0091-3057
Publisher
Elsevier
Publication Date
Volume
18
Issue
5
Identifiers
DOI: 10.1016/0091-3057(83)90004-7
Keywords
  • Brain Noradrenaline
  • Selective Attention
  • Dorsal Bundle Lesions
  • Distractibility

Abstract

Abstract Bilateral lesions of the dorsal noradrenergic bundle in rat brains with 6-hydroxydopamine produced a depletion of cortical noradrenaline to 19% of control values. Rats so treated showed resistance to extinction of a lever press task but no increased distractibility from licking behaviour by a low intensity tone. These results cast doubt on the hypothesis that dorsal noradrenergic bundle lesions cause hyperdistractibility in rats.

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