Chemical stimulation of the midbrain periaqueductal gray matter (PAG) in conscious animals
produces opposite responses (viz., defensive behavior and pressor responses from the …

The periaqueductal gray matter (PAG) serves as the midbrain link between forebrain
emotional processing systems and motor pathways used in the defense reaction. Part of this …

Previous anatomical and physiological studies have revealed a substantial projection from
the periaqueductal gray (PAG) to the nucleus paragigantocellularis (PGi). In addition …

The midbrain periaqueductal gray matter (PAG) has been implicated in a wide range of
possible functions including antinociception, reproductive behavior, and components of the …

The midbrain periaqueductal gray (PAG) participates in diverse functions such as analgesia,
autonomic regulation, sexual behavior, and defense/escape responses. Anatomical studies …

Many psychological and environmental factors are known to influence responsiveness to
noxious sensory stimuli. Until recently, the physiological mechanisms which enable such …

The periaqueductal gray matter (PAG) has been implicated in a variety of different functions,
including autonomic regulation. Chemical stimulation of the lateral PAG produces …

Publisher Summary Recently, it has become clear that discrete longitudinal columns of
neurons within the periaqueductal gray region (PAG) play special roles in coordinating …

It is now established that stimulation of the ventrolateral midbrain periaqueductal grey (PAG)
evokes inhibition of nociceptive spinal neurons, which results in analgesia and a powerful …

Publisher Summary Considerable evidence suggests that the cell dense region surrounding
the midbrain aqueduct, the midbrain periaqueductal gray region (PAG), is a crucial neural …