perifornical area (PFX)
The term
perifornical area (PFX) refers to a structurally and functionally defined group of neurons variously illustrated as surrounding,
dorsal to, or
ventral to the
postcommissural fornix (pofx) at the level of the ventromedial nucleus (VMH) of the
hypothalamus (HYP) (
Smith-1990 ). It is found in the
human (
Mai-1997 ),
macaque (
Paxinos-2009a ),
rat (
Paxinos-2009b ) and
mouse (
Franklin-2008 ). It receives major inputs from the
amygdala (AMG)...directly from the
medial amygdalar nucleus (MEA) and indirectly from the
basolateral amygdalar nucleus (BLN) through the
central amygdalar nucleus (CEA) (
DeVito-1982;
Amaral-1992 ).
Electrical stimulation of the PFX produces the cardiovascular component of defensive responses to threatening stimuli (
Smith-1990;
Smith-2007 ). It is the part of HYP most involved in sham rage (
Crosby-1962 ) and fear conditioning ( Smith 1990;
Pare-2004 ). It is considered the central controller of cardiovascular responses in the instinctive behavioral control system (
Bowden-2021 ). Final 20 Mar 2025.
Also known as: area LH/PF, lateral hypothalamus-perifornical area, perifornical hypothalamus, perifornical area, LH/PF region, Nucleus perifornicalis hypothalami, interfornical nucleus, Nucleus perifornicalis, parafornical nucleus, perifornical nucleus
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Showing 16 synonym(s)
Citation:
Am J Physiol 1990 Nov;259(5 Pt 2):R943-54
Source Title:
Neurons controlling cardiovascular responses to emotion are located in lateral hypothalamus-perifornical region.
Citation:
Clin Exp Hypertens A 1984;6(1-2):185-204
Source Title:
Organization of central nervous system pathways influencing blood pressure responses during emotional behavior.
Name:
lateral hypothalamus-perifornical area
Citation:
Am J Physiol 1990 Nov;259(5 Pt 2):R943-54
Source Title:
Neurons controlling cardiovascular responses to emotion are located in lateral hypothalamus-perifornical region.
Name:
perifornical hypothalamus
Citation:
Am J Physiol 1990 Nov;259(5 Pt 2):R943-54
Source Title:
Neurons controlling cardiovascular responses to emotion are located in lateral hypothalamus-perifornical region.
Citation:
Clin Exp Hypertens A 1984;6(1-2):185-204
Source Title:
Organization of central nervous system pathways influencing blood pressure responses during emotional behavior.
Citation:
Am J Physiol 1990 Nov;259(5 Pt 2):R943-54
Source Title:
Neurons controlling cardiovascular responses to emotion are located in lateral hypothalamus-perifornical region.
Citation:
Am J Physiol 1990 Nov;259(5 Pt 2):R943-54
Source Title:
Neurons controlling cardiovascular responses to emotion are located in lateral hypothalamus-perifornical region.
Citation:
University of Washington, Seattle, WA
Citation:
Clin Exp Hypertens A 1984;6(1-2):185-204
Source Title:
Organization of central nervous system pathways influencing blood pressure responses during emotional behavior.
Citation:
Compact Third Edition, Amsterdam: Elsevier Academic Press
Source Title:
The Mouse Brain in Stereotaxic Coordinates
Citation:
Sixth Edition, Amsterdam: Amsterdam: Elsevier-Academic Press
Source Title:
The Rat Brain in Stereotaxic Coordinates
Name:
Nucleus perifornicalis hypothalami
Citation:
San Diego: Academic Press, 1997
Source Title:
Atlas of the Human Brain
Name:
interfornical nucleus
Citation:
San Diego: Academic Press, 1997
Source Title:
Atlas of the Human Brain
Name:
Nucleus perifornicalis
Citation:
San Diego: Academic Press, 1997
Source Title:
Atlas of the Human Brain
Name:
parafornical nucleus
Citation:
San Diego: Academic Press, 1997
Source Title:
Atlas of the Human Brain
Name:
perifornical nucleus
Citation:
San Diego: Academic Press, 1997
Source Title:
Atlas of the Human Brain
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