Periaqueductal gray:
The periaqueductal gray (PAG) is an anatomic and functional interface between the forebrain and the lower brainstem and has a major role in integrated behavioral responses to internal (e.g., pain) or external (e.g., threat) stressors. The PAG consists of distinct columns that receive selective inputs from the prefrontal cortex, amygdala, hypothalamus, and nociceptive pathways. Via its connections with different brainstem nuclei, the PAG coordinates specific patterns of cardiovascular, respiratory, motor, and pain modulatory responses. [“Periaqueductal gray: An interface for behavioral control,” Eduardo E. Benarroch, Neurology]
Well. Caught me off-guard, didn’t it? Noted in the title of this Paul Fidalgo post on The Morning Heresy:
Maybe Something in Periaqueductal Grey
Yeah, there was nothing in the body of the post of relevance.
