Journal ArticleDOI
Subdivisions of hymenopteran mushroom body calyces by their afferent supply
Reads0
Chats0
TLDR
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
More filters
Journal ArticleDOI
Adaptation of microglomerular complexes in the honeybee mushroom body lip to manipulations of behavioral maturation and sensory experience
TL;DR: Modifications of behavioral and sensory experience led to adaptive changes, which indicate that the microglomerular organization of the MB lips is not static and determined by maturation, but rather that their organization is plastic, enabling the brain to retain its synaptic efficacy.
Journal ArticleDOI
Age-related and light-induced plasticity in opsin gene expression and in primary and secondary visual centers of the nectar-feeding ant Camponotus rufipes.
Ayse Yilmaz,Annekathrin Lindenberg,Stefan Albert,Kornelia Grübel,Johannes Spaethe,Wolfgang Rössler,Claudia Groh +6 more
TL;DR: It is concluded that both sources of plasticity in retinal opsin gene expression and structural neuroplasticity in primary and secondary visual centers represent important components promoting optimal timing of the interior–forager transition and flexibility of age‐related division of labor.
Journal ArticleDOI
Experience-related reorganization of giant synapses in the lateral complex: Potential role in plasticity of the sky-compass pathway in the desert ant Cataglyphis fortis.
TL;DR: It is concluded that plasticity in LX GS may reflect processes involved in the initial calibration of sky‐compass neuronal circuits during orientation walks preceding active foraging.
Journal ArticleDOI
Developmental organization of the mushroom bodies of Thermobia domestica (Zygentoma, Lepismatidae): insights into mushroom body evolution from a basal insect
TL;DR: Although the ground plan for neopteran mushroom bodies existed in early insects, the organization of modular subunits composed of separate Kenyon cell subpopulations is a later innovation.
Journal ArticleDOI
Evolutionary Convergence of Higher Brain Centers Spanning the Protostome-Deuterostome Boundary
TL;DR: By expanding the scope of comparative studies across phyla, it will be possible to uncover structural and functional constraints imposed by deep homology, and to better understand the environmental pressures that have given rise to brain and behavioral complexity.
References
More filters
Book
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.
Book
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.