Journal ArticleDOI
Subdivisions of hymenopteran mushroom body calyces by their afferent supply
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The data suggest that the many parallel channels of intrinsic neurons may each process different aspects of sensory input information within the mushroom body's calyx, which is particularly large in social Hymenoptera.Abstract:
The mushroom bodies are regions in the insect brain involved in processing complex multimodal information. They are composed of many parallel sets of intrinsic neurons that receive input from and transfer output to extrinsic neurons that connect the mushroom bodies with the surrounding neuropils. Mushroom bodies are particularly large in social Hymenoptera and are thought to be involved in the control of conspicuous orientation, learning, and memory capabilities of these insects. The present account compares the organization of sensory input to the mushroom body's calyx in different Hymenoptera. Tracer and conventional neuronal staining procedures reveal the following anatomic characteristics: The calyx comprises three subdivisions, the lip, collar, and basal ring. The lip receives antennal lobe afferents, and these olfactory input neurons can terminate in two or more segregated zones within the lip. The collar receives visual afferents that are bilateral with equal representation of both eyes in each calyx. Visual inputs provide two to three layers of processes in the collar subdivision. The basal ring is subdivided into two modality-specific zones, one receiving visual, the other antennal lobe input. Some overlap of modality exists between calycal subdivisions and within the basal ring, and the degree of segregation of sensory input within the calyx is species-specific. The data suggest that the many parallel channels of intrinsic neurons may each process different aspects of sensory input information.read more
Citations
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Journal ArticleDOI
The Role of Celestial Compass Information in Cataglyphis Ants during Learning Walks and for Neuroplasticity in the Central Complex and Mushroom Bodies
TL;DR: A comparison of neuroanatomical changes in the central complex and the mushroom bodies before and after learning walks revealed that exposure to UV light together with a naturally changing polarization pattern was essential to induce neuroplasticity in these high-order sensory integration centers of the ant brain.
Journal ArticleDOI
Specialization and group size: brain and behavioural correlates of colony size in ants lacking morphological castes
Sabrina Amador-Vargas,Sabrina Amador-Vargas,Wulfila Gronenberg,William T. Wcislo,Ulrich G. Mueller +4 more
TL;DR: The relationship between colony size and brain region volume was task-dependent, supporting the task specialization hypothesis and suggesting that workers specialized in defence may have reduced learning abilities relative to leaf-ants.
Book ChapterDOI
Architectural Principles and Evolution of the Arthropod Central Nervous System
TL;DR: It is shown that neurobiology is one of the most active fields of arthropod research, and the central nervous system and visual organs of neglected taxa such as Myriapoda have been analyzed with contemporary techniques.
Journal ArticleDOI
Topographically distinct visual and olfactory inputs to the mushroom body in the Swallowtail butterfly, Papilio xuthus
TL;DR: The mushroom body of Papilio xuthus receives prominent direct inputs from the optic lobe in addition to olfactory inputs, suggesting a role in visual target detection rather than sky compass orientation.
Journal ArticleDOI
Developmental and dominance-associated differences in mushroom body structure in the paper wasp Mischocyttarus mastigophorus.
TL;DR: It is found that the MB calycal neuropils were better developed in the dominant females that spent more time on the nest, and increased MB calyx development was more strongly associated with social dominance than with high rates of foraging.
References
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The Insect Societies
TL;DR: In this article, a definitive study of the social structure and symbiotic relationships of termites, social wasps, bees, and ants was conducted. But the authors focused on the relationship between ants and termites.
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The dance language and orientation of bees
TL;DR: The Dance Language and Orientation of Bees as discussed by the authors is a seminal work in the field of honeybee behavior that describes in non-technical language what he discovered in a lifetime of study about honeybees - their methods of orientation, their sensory faculties, and their remarkable ability to communicate with one another.
Journal Article
The Insect Societies
TL;DR: The author wished to relate the three phases of research on insects and to express insect sociology as population biology in this detailed survey of knowledge of insect societies.
Journal ArticleDOI
Associative odor learning in Drosophila abolished by chemical ablation of mushroom bodies
JS de Belle,Martin Heisenberg +1 more
TL;DR: The results demonstrate that MBs mediate associative odor learning in flies, and that adult flies developing without MBs are unable to perform in a classical conditioning paradigm that tests associative learning of odor cues and electric shock.