Abstract：
:A psychotherapeutic regimen that uses alternating bilateral sensory stimulation (ABS) has been used to treat post-traumatic stress disorder. However, the neural basis that underlies the long-lasting effect of this treatment-described as eye movement desensitization and reprocessing-has not been identified. Here we describe a neuronal pathway driven by the superior colliculus (SC) that mediates persistent attenuation of fear. We successfully induced a lasting reduction in fear in mice by pairing visual ABS with conditioned stimuli during fear extinction. Among the types of visual stimulation tested, ABS provided the strongest fear-reducing effect and yielded sustained increases in the activities of the SC and mediodorsal thalamus (MD). Optogenetic manipulation revealed that the SC-MD circuit was necessary and sufficient to prevent the return of fear. ABS suppressed the activity of fear-encoding cells and stabilized inhibitory neurotransmission in the basolateral amygdala through a feedforward inhibitory circuit from the MD. Together, these results reveal the neural circuit that underlies an effective strategy for sustainably attenuating traumatic memories.
journal_name
Naturejournal_title
Natureauthors
Baek J,Lee S,Cho T,Kim SW,Kim M,Yoon Y,Kim KK,Byun J,Kim SJ,Jeong J,Shin HSdoi
10.1038/s41586-019-0931-ysubject
Has Abstractpub_date
2019-02-01 00:00:00pages
339-343issue
7744eissn
0028-0836issn
1476-4687pii
10.1038/s41586-019-0931-yjournal_volume
566pub_type
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