Can direct pathway stimulation cause addiction-like changes in behavior?
Can direct pathway stimulation cause addiction-like changes in behavior?
批准号:
8741638
负责人:
Alexxai V Kravitz
金额:
$34.01万
依托单位国家:
美国
项目类别:
财政年份:
--
资助国家:
美国
项目状态:
未结题
起止时间:
至
关键词:
BehaviorBehavioralBiological AssayCanned FoodsCorpus striatum structureDiseaseDrug AddictionEnvironmentFoodFutureLearningMotivationMusNeuronsPathway interactionsPhenotypeProcessPsychological reinforcementStimulusTaste PerceptionTestingTimeTrainingWorkaddictioncell typeexperiencefood addictionnoveloptogeneticsreinforced behaviortherapeutic targetwillingness
中文摘要
在这个项目中,我们将训练小鼠使用光遗传学来自我刺激它们的直接通路中棘神经元(DMSN)。在之前的工作中,我们发现老鼠发现这种行为高度强化。然而,之前的工作给了小鼠最多90分钟的总训练时间。我们计划将其扩大到100倍,让老鼠在这种高度强化的行为方面有更多的经验。我们将检查这些小鼠的行为变化,包括分析它们接受刺激的动机、为刺激而工作的意愿以及为了接受刺激而承受负面后果的意愿。
英文摘要
In this project, we will train mice to self-stimulate their direct pathway medium spiny neurons (dMSNs) using optogenetics. In prior work, we have found that mice find this behavior highly reinforcing. However, prior work gave mice at most 90 minutes of total training time. We plan to expand this by a factor of 100, giving the mice much more experience with this highly reinforcing behavior. We will examine behavioral changes in these mice, including assaying their motivation to receive stimulation, willingness to work for stimulation, and willingness to endure negative consequences to receive stimulation.
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