Journal ArticleDOI
Subdivisions of hymenopteran mushroom body calyces by their afferent supply
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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
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Journal ArticleDOI
F‐actin at identified synapses in the mushroom body neuropil of the insect brain
TL;DR: Focal accumulation of f‐actin in the dendritic tips of KCs was found to be a general feature of MG, with either spheroidal or indented boutons of different sizes, as encountered in the mushroom bodies of the cricket, honey bee, ant, and fruit fly.
Journal ArticleDOI
Environment- and age-dependent plasticity of synaptic complexes in the mushroom bodies of honeybee queens.
TL;DR: It is proposed that developmental and adult plasticity of the synaptic circuitry in the mushroom-body calyx might underlie caste- and age-specific adaptations in behavior.
Journal ArticleDOI
Higher order visual input to the mushroom bodies in the bee, Bombus impatiens.
TL;DR: The structure and response of optic lobe (OL) neurons projecting to the calyces of the mushroom bodies in bees were characterized, which included sensory information required for the biologically relevant associations bees form during foraging tasks.
Journal ArticleDOI
Stimulation of muscarinic receptors mimics experience-dependent plasticity in the honey bee brain
TL;DR: It is reported here that foraging bees had a larger volume of mushroom body neuropil than did age-matched bees confined to the hive, and signaling in cholinergic pathways couples experience to structural brain plasticity.
Journal ArticleDOI
The foraging gene, behavioral plasticity, and honeybee division of labor
TL;DR: In this article, a cGMP-dependent protein kinase was found to play a role in the evolution of the division of labor in honeybees, and the possible mechanisms for PKG action in regulating behavioral transitions associated with honeybee division of labour.
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.