نتایج جستجو برای: periaqueductal gray

تعداد نتایج: 40734  

Journal: :Brain research bulletin 2003
Daniel Machado Luiz Vianna Karina Genaro Borelli Cristina Ferreira-Netto Carlos Eduardo Macedo Marcus Lira Brandão

Electrical stimulation of the dorsal regions of the periaqueductal gray (PAG) leads to defensive reactions characterized as freezing and escape responses. Until recently it was thought that this freezing behavior could be due to the recruitment of neural circuits in the ventrolateral periaqueductal gray (vlPAG), while escape would be mediated by other pathways. Nowadays, this view has been chan...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2021

Significance Predatory hunting involves measured risk taking by the predator to anticipate dangerous defensive behavior from prey. This a mechanism where motivation hunt can overcome behaviors toward prey unlock attack. Here, we found that activation of subset GABAergic neurons in lateral hypothalamus (LHA) promotes but not feeding behavior. Stimulation projections these periaqueductal gray (PA...

2007
Pamela S. Hunt Michael S. Fanselow Rick Richardson Michael D. Mauk John H. Freeman Mark E. Stanton

An astonishing level of detail is known about the circuits that mediate the acquisition of Pavlovian conditional fear. Considerable attention has been focused on the amygdala, and to be sure, amygdala activity is normally essential for fear conditioning. However, the complete circuit involves frontal cortex, hippocampus, periaqueductal gray (PAG) Developmental Psychobiology. DOI 10.1002/dev 650...

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