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2016 ; 19
(2
): 198-205
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Lateral hypothalamic circuits for feeding and reward
#MMPMID26814589
Stuber GD
; Wise RA
Nat Neurosci
2016[Feb]; 19
(2
): 198-205
PMID26814589
show ga
In experiments conducted over 60 years ago, the lateral hypothalamic area (LHA)
was identified as a critical neuroanatomical substrate for motivated behavior.
Electrical stimulation of the LHA induces voracious feeding even in well-fed
animals. In the absence of food, animals will work tirelessly, often
lever-pressing thousands of times per hour, for electrical stimulation at the
same site that provokes feeding, drinking and other species-typical motivated
behaviors. Here we review the classic findings from electrical stimulation
studies and integrate them with more recent work that has used contemporary
circuit-based approaches to study the LHA. We identify specific anatomically and
molecularly defined LHA elements that integrate diverse information arising from
cortical, extended amygdala and basal forebrain networks to ultimately generate a
highly specified and invigorated behavioral state conveyed via LHA projections to
downstream reward and feeding-specific circuits.