scholarly journals Comparative Neuroanatomy of the Lateral Accessory Lobe in the Insect Brain

2016 ◽  
Vol 7 ◽  
Author(s):  
Shigehiro Namiki ◽  
Ryohei Kanzaki
Keyword(s):  
Insect Brain ◽  
Comparative Neuroanatomy ◽  
Accessory Lobe ◽  
Lateral Accessory Lobe

scholarly journals Descending pathways from the lateral accessory lobe and posterior slope in the brain of the silkmoth Bombyx mori

2018 ◽  
Author(s):  
Shigehiro Namiki ◽  
Ryohei Kanzaki
Keyword(s):  
Bombyx Mori ◽  
Critical Role ◽  
Olfactory Behavior ◽  
Descending Pathways ◽  
Posterior Slope ◽  
Descending Neurons ◽  
Accessory Lobe ◽  
Controlling Behavior ◽  
The Brain ◽  
Lateral Accessory Lobe

AbstractA population of descending neurons connect the brain and thoracic motor cener, playing a critical role in controlling behavior. We examined the anatomical organization of descending neurons (DNs) in the brain of the silkmoth Bombyx mori. Moth pheromone orientation is a good model to investigate the neuronal mechanisms of olfactory behavior. Based on mass staining and single-cell staining, we evaluated the anatomical organization of neurite distribution by DNs in the brain. Dense innervation was observed in the posterior–ventral part of the brain, called the posterior slope (PS). We examined the morphology of DNs innervating the lateral accessory lobe (LAL), which is assumed to be important for moth olfactory behavior. We observed that the LAL DNs also innervate the PS, suggesting the integration of signals from the LAL and PS. We also identified a set of DNs innervating the PS, but not the LAL. These DNs were sensitive to sex pheromones, suggesting a role of the PS in motor control for pheromone orientation. The organization of descending pathways for pheromone orientation is discussed.

scholarly journals Encoding and control of orientation to airflow by a set of Drosophila fan-shaped body neurons

eLife ◽  
2020 ◽  
Vol 9 ◽  
Author(s):  
Timothy A Currier ◽  
Andrew MM Matheson ◽  
Katherine I Nagel
Keyword(s):  
Functional Organization ◽  
Cell Types ◽  
Central Complex ◽  
Shaped Body ◽  
Orthogonal Bases ◽  
Accessory Lobe ◽  
Orienting Behavior ◽  
And Control ◽  
Proper Orientation ◽  
Lateral Accessory Lobe

The insect central complex (CX) is thought to underlie goal-oriented navigation but its functional organization is not fully understood. We recorded from genetically-identified CX cell types in Drosophila and presented directional visual, olfactory, and airflow cues known to elicit orienting behavior. We found that a group of neurons targeting the ventral fan-shaped body (ventral P-FNs) are robustly tuned for airflow direction. Ventral P-FNs did not generate a ‘map’ of airflow direction. Instead, cells in each hemisphere were tuned to 45° ipsilateral, forming a pair of orthogonal bases. Imaging experiments suggest that ventral P-FNs inherit their airflow tuning from neurons that provide input from the lateral accessory lobe (LAL) to the noduli (NO). Silencing ventral P-FNs prevented flies from selecting appropriate corrective turns following changes in airflow direction. Our results identify a group of CX neurons that robustly encode airflow direction and are required for proper orientation to this stimulus.

scholarly journals Neural network model of the lateral accessory lobe and ventral protocerebrum of Bombyx mori to generate the flip-flop activity

2008 ◽  
Vol 9 (S1) ◽  
Author(s):  
Ikuko Nishikawa ◽  
Masayoshi Nakaumura ◽  
Yoshiki Igarashi ◽  
Tomoki Kazawa ◽  
Hidetoshi Ikeno ◽  
...  
Keyword(s):  
Neural Network ◽  
Bombyx Mori ◽  
Network Model ◽  
Neural Network Model ◽  
Flip Flop ◽  
Accessory Lobe ◽  
Lateral Accessory Lobe

Neurons associated with the flip-flop activity in the lateral accessory lobe and ventral protocerebrum of the silkworm moth brain

2010 ◽  
Vol 518 (3) ◽  
pp. 366-388 ◽  
Author(s):  
Masaaki Iwano ◽  
Evan S. Hill ◽  
Akio Mori ◽  
Tatsuya Mishima ◽  
Tsuneko Mishima ◽  
...  
Keyword(s):  
Flip Flop ◽  
Accessory Lobe ◽  
Lateral Accessory Lobe

Pulmonary upper accessory lobe

1969 ◽  
Vol 4 (1) ◽  
pp. 159
Author(s):  
C.A. Montagnani
Keyword(s):  
Accessory Lobe

scholarly journals A Systematic Nomenclature for the Insect Brain

Neuron ◽  
2014 ◽  
Vol 81 (4) ◽  
pp. 755-765 ◽  
Author(s):  
Kei Ito ◽  
Kazunori Shinomiya ◽  
Masayoshi Ito ◽  
J. Douglas Armstrong ◽  
George Boyan ◽  
...  
Keyword(s):  
Insect Brain ◽  
Systematic Nomenclature
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