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The lateral habenula (LHb) is believed to encode negative motivational values. It remains unknown how LHb neurons respond to various stressors and how learning shapes their responses. Here, we used fiber-photometry and electrophysiology to track LHb neuronal activity in freely-behaving mice. Bitterness, pain, and social attack by aggressors intensively excite LHb neurons. Aversive Pavlovian conditioning induced activation by the aversion-predicting cue in a few trials. The experience of social defeat also conditioned excitatory responses to previously neutral social stimuli. In contrast, fiber photometry and single-unit recordings revealed that sucrose reward inhibited LHb neurons and often produced excitatory rebound. It required prolonged conditioning and high reward probability to induce inhibition by reward-predicting cues. Therefore, LHb neurons can bidirectionally process a diverse array of aversive and reward signals. Importantly, their responses are dynamically shaped by learning, suggesting that the LHb participates in experience-dependent selection of behavioral responses to stressors and rewards.
Pubmed ID: 28561735 RIS Download
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View all literature mentionsAn independent, nonprofit organization focused on mammalian genetics research to advance human health. Their mission is to discover the genetic basis for preventing, treating, and curing human disease, and to enable research for the global biomedical community. Jackson Laboratory breeds and manages colonies of mice as resources for other research institutions and laboratories, along with providing software and techniques. Jackson Lab also conducts genetic research and provides educational material for various educational levels.
View all literature mentionsMus musculus with name Crl:CD1(ICR) from IMSR.
View all literature mentionsThis unknown targets Rabbit IgG (H+L)
View all literature mentionsTHIS RESOURCE IS NO LONGER IN SERVICE.Documented on September 23,2022. A data acquisition and analysis software package for electrophysiology data. Spike2 software offers multi-channel continuous data acquisition and analysis with a multitude of options. This offers flexible usage from a simple chart recorder to complex applications requiring stimulus generation, data capture, scrolling or triggered displays, control of external equipment, and custom analysis. Spike2 software can be used in many fields such as electrophysiology, neurophysiology, cardiovascular and respiratory studies, sports science and pharmacology.
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