scholarly journals Local olfactory interneurons provide the basis for neurochemical regionalization of olfactory glomeruli in crustaceans

2021 ◽  
Author(s):  
Steffen Harzsch ◽  
Heinrich Dircksen ◽  
Bill. S. Hansson
Keyword(s):  
Olfactory Glomeruli ◽  
Olfactory Interneurons

Coherent network oscillations by olfactory interneurons: modulation by endogenous amines

1993 ◽  
Vol 69 (6) ◽  
pp. 1930-1939 ◽  
Author(s):  
A. Gelperin ◽  
L. D. Rhines ◽  
J. Flores ◽  
D. W. Tank
Keyword(s):  
Second Messengers ◽  
Field Potential ◽  
Learning Ability ◽  
Odor Recognition ◽  
Axonal Projections ◽  
Odor Learning ◽  
Olfactory Systems ◽  
Olfactory Interneurons ◽  
Limax Maximus ◽  
Local Field Potential Lfp

1. The procerebral (PC) lobe of the terrestrial mollusk Limax maximus contains a highly interconnected network of local olfactory interneurons that receives direct axonal projections from the two pairs of noses. This olfactory processing network generates a 0.7-Hz oscillation in its local field potential (LFP) that is coherent throughout the network. The oscillating LFP is modulated by natural odorants applied to the neuroepithelium of the superior nose. 2. Two amines known to be present in the PC lobe, dopamine and serotonin, increase the frequency of the PC lobe oscillation and alter its waveform. 3. Glutamate, another putative neurotransmitter known to be present in the lobe, suppresses the PC lobe oscillation by a quisqualate-type receptor and appears to be used by one of the two classes of neurons in the PC lobe to generate the basic LFP oscillation. 4. The known activation of second messengers in Limax PC lobe by dopamine and serotonin together with their effects on the oscillatory rhythm suggest the hypothesis that these amines augment mechanisms mediating synaptic plasticity in the olfactory network, similar to hypothesized effects of amines in vertebrate olfactory systems. 5. The use of a distributed network of interneurons showing coherent oscillations may relate to the highly developed odor recognition and odor learning ability of Limax.

scholarly journals Structure and Emergence of Specific Olfactory Glomeruli in the Mouse

2001 ◽  
Vol 21 (24) ◽  
pp. 9713-9723 ◽  
Author(s):  
Steve M. Potter ◽  
Chen Zheng ◽  
David S. Koos ◽  
Paul Feinstein ◽  
Scott E. Fraser ◽  
...  
Keyword(s):  
Olfactory Glomeruli

Development of an identified serotonergic neuron in the antennal lobe of the moth and effects of reduction in serotonin during construction of olfactory glomeruli

1995 ◽  
Vol 28 (2) ◽  
pp. 248-267 ◽  
Author(s):  
Lynne A. Oland ◽  
Sheila R. Kirschenbaum ◽  
Wendy M. Pott ◽  
Alison R. Mercer ◽  
Leslie P. Tolbert
Keyword(s):  
Antennal Lobe ◽  
Serotonergic Neuron ◽  
Olfactory Glomeruli

scholarly journals Interneuron Diversity: Toward a Better Understanding of Interneuron Development In the Olfactory System

2019 ◽  
Vol 13 ◽  
pp. 117906951982605
Author(s):  
Chi-Jen Yang ◽  
Kuo-Ting Tsai ◽  
Nan-Fu Liou ◽  
Ya-Hui Chou
Keyword(s):  
Olfactory System ◽  
Neural Circuits ◽  
Projection Neurons ◽  
Intrinsic Properties ◽  
Recent Advances ◽  
Local Interneurons ◽  
Olfactory Interneurons ◽  
High Diversity ◽  
Interneuron Development

The Drosophila olfactory system is an attractive model for exploring the wiring logic of complex neural circuits. Remarkably, olfactory local interneurons exhibit high diversity and variability in their morphologies and intrinsic properties. Although olfactory sensory and projection neurons have been extensively studied of development and wiring; the development, mechanisms for establishing diversity, and integration of olfactory local interneurons into the developing circuit remain largely undescribed. In this review, we discuss some challenges and recent advances in the study of Drosophila olfactory interneurons.

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