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The present study examined how systemic low doses of nicotine affect the microstructure of food-reinforced behavior in rats. Rats were given an acute saline or nicotine treatment (0.1-0.6 mg/kg, resting

The present study examined how systemic low doses of nicotine affect the microstructure of food-reinforced behavior in rats. Rats were given an acute saline or nicotine treatment (0.1-0.6 mg/kg, resting at least 48 h between injections), and a chronic saline or nicotine treatment (0.3 mg/kg for 10 consecutive days). Immediately after treatment, rats were required to press a lever to obtain food, whose availability was unpredictable, but programmed at a constant rate (on average every 80 s).

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Date Created
  • 2017-05
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