منابع مشابه
Nicotine behavioral sensitization in Lewis and Fischer male rats.
Individuals with greater nicotine-reactivity may be more likely to initiate and maintain cigarette-smoking behavior than individuals with less nicotine-reactivity. In rats, behavioral sensitization reflects a progressive increase in the psychomotor response to drugs of abuse thought to result from neuroplasticity in brain regions that mediate their motivational effects. Studying nicotine behavi...
متن کاملLewis rats have greater response impulsivity than Fischer rats.
Impulsivity, a tendency toward immediate action without consideration of future consequences, is associated with a wide array of problematic behaviors. Response impulsivity, a type of behaviorally-assessed impulsivity characterized by behavioral disinhibition, is also associated with health risk behaviors. Response impulsivity is distinct from choice impulsivity, which is characterized by intol...
متن کاملSpontaneous withdrawal in opiate-dependent Fischer 344, Lewis and Sprague-Dawley rats.
The Lewis (LEW) and Fischer 344 (F344) inbred rat strains react differentially to acute morphine administration for a variety of behavioral and neurochemical measures. Investigations into effects of chronic morphine are less common, and investigations assessing dependence have been limited to those utilizing antagonist-precipitated withdrawal. The present experiment extended these assessments b...
متن کاملImpulsive Choice in Lewis and Fischer 344 Rats: Effects of Extended Training
Delay discounting in Lewis and Fischer 344 was compared using a novel concurrent-chains procedure. In the initial-link, two levers were available and a random-interval schedule was in effect. One terminal link provided a smaller reinforcer (1 pellet) and the other terminal provided a larger reinforcer (4 pellets). Terminal-link entry was scheduled randomly, with the constraint that entries to e...
متن کاملThe differential expression of male sexual behavior in the Lewis, Fischer and Sprague-Dawley rat strains.
Several indices of sexual behavior were characterized for male rats of the Lewis (LEW), Sprague-Dawley (SD) and Fischer (F344) strains. Males were permitted access to a receptive female of their own strain for five 50-min sessions every fifth day. LEW males emitted longer latencies (first mount, intromission, ejaculation and post-ejaculatory interval) and lower frequencies (mounts, intromission...
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ژورنال
عنوان ژورنال: The Mariner's Mirror
سال: 2018
ISSN: 0025-3359,2049-680X
DOI: 10.1080/00253359.2018.1453643