Individual variation in the motivational properties of a nicotine cue: sign-trackers vs. goal-trackers
نویسندگان
چکیده
منابع مشابه
Experimental predictions drawn from a computational model of sign-trackers and goal-trackers.
Gaining a better understanding of the biological mechanisms underlying the individual variation observed in response to rewards and reward cues could help to identify and treat individuals more prone to disorders of impulsive control, such as addiction. Variation in response to reward cues is captured in rats undergoing autoshaping experiments where the appearance of a lever precedes food deliv...
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Pavlovian cues that have been paired with reward can gain incentive salience. Drug addicts find drug cues motivationally attractive and binge eaters are attracted by food cues. But the level of incentive salience elicited by a cue re-encounter still varies across time and brain states. In an animal model, cues become attractive and 'wanted' in an 'autoshaping' paradigm, where different targets ...
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Cues associated with food availability and consumption can evoke desire for food, sometimes leading to excessive intake. We have found, however, that food cues acquire incentive motivational properties (the ability to attract and to serve as conditional reinforcers) in some individuals (sign-trackers), but not others (goal-trackers). We asked, therefore, whether rats that are attracted (attribu...
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ژورنال
عنوان ژورنال: Psychopharmacology
سال: 2015
ISSN: 0033-3158,1432-2072
DOI: 10.1007/s00213-015-3962-6