View Full Version : "..a general principle for all of the basic emotional systems."


mildadhd
01-15-14, 02:52 PM
RAGE circuitry is hierarchically arranged, and the deeper structures are more critically important for the actual generation of the aggressive acts than those that are located higher in the brain.

RAGE evoked from the PAG (http://www.addforums.com/forums/showthread.php?t=155701) is not diminished by damage to either of the higher brain regions, the medial hypothalamus or the amygdala (DeMolina & Hunsperger, 1962).

Damage to the PAG or medial hypothalamus, however, can completely eliminate rage evoked from amygdala.

And just as one would expect, damage to the middle system, the hypothalamus, blocks RAGE from the amygdala but not from the PAG.

Thus, it is fair to say that PAG is critically important for this emotion, with the medial hypothalamus being important, but less so, and the medial amygdala being even less important for the generation of this instinctual emotional response.

But the amygdala is more relevant for establishing the cognitive linkages that come to provoke RAGE.

Much of that funnels through the medial amygdala from higher regions that elaborate spiteful ruminations.

But for the full emotional response, the PAG and medial hypothalamus areas still remain critical.



This hierarchical arrangement highlights a general principle for all of the basic emotional systems.

The lower, more ancient aspects of each emotional system are more critically important for coherent emotional responses that they generate , including the raw feeling of RAGE, than the higher brain regions.

Such levels of hierarchical control are evident in all emotional networks...




-Jaak Panksepp, Lucy Biven, "The Archaeology of Mind", Neuroevolutionary Origins of Human Emotions, P 151-152.


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