Olfactory bulb output neurons excited from a basal forebrain magnocellular nucleus.
We present intracellular data which demonstrates a unique facilitatory centrifugal influence on the output cells of the olfactory bulb; the source being the lateral component of the nucleus of the horizontal limb of the diagonal band (HDB), part of the basal forebrain magnocellular complex. Damage to this facilitatory HDB influence may explain the loss of olfactory sensitivity seen early in Alzheimer's disease in which pathological changes occur in the basal forebrain.
Kunze
W A
WA
Department of Physiology, University of Melbourne, Parkville, Vic., Australia.
Shafton
A D
AD
Kemm
R E
RE
McKenzie
J S
JS
D000200:Action Potentials; D000818:Animals; D004558:Electric Stimulation; D005071:Evoked Potentials; D005625:Frontal Lobe / Q000502:physiology; D008297:Male; D009474:Neurons / Q000502:physiology*; D009830:Olfactory Bulb / Q000502:physiology*; D016548:Prosencephalon / Q000502:physiology*; D051381:Rats; D011919:Rats, Inbred Strains