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Welcome to the Pubget Medical Subject Headings (MESH) browser. Click on a topic or subtopic below to explore related papers. In the gold box is the most recent paper about the current MESH term, and below are 20 related papers.
Sense Organs (4):
Recent article
Sense Organs
Journal of Insect Physiology (56)11 2010
Abstract
We demonstrate that the binary system of two antagonistic hygroreceptor neurons discriminates differences between steady-state humidity levels more sensitively than either neuron separately. Another advantage of the binary system is that it guarantees immediate and strong phasic-tonic response to ra...
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PMID: 20615410
PDF is available here.
PDF is available here.
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Journal of Insect Physiology (56)11 2010
Abstract
We recorded extracellulary from the Bolwig nerve of 3rd instar Calliphora vicina larvae to quantify the sensory response caused by BO stimulation with light stimuli of different wavelengths, intensities and directions. Consistent with previous behavioral experiments we found the BO most sensitive to...
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PMID: 20603127
PDF is available here.
PDF is available here.
Abstract
We show that this dual sensory-motile role of eukaryotic cilia is preserved in the most sensitive of all invertebrate hearing organs, the Johnston's organ of the mosquito. The Johnston's organ displays spontaneous oscillations, which have been identified as being a characteristic of amplification in...
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PMID: 20129974
PDF is available here.
PDF is available here.
Genetics Research (92)3 2010
Abstract
We have identified four quantitative trait loci (QTLs) that contribute to adult gravitaxis (geotaxis) behaviour in Drosophila. Candidate genes of interest were selected from the QTLs of highest significance based on their function in chordotonal organ formation. Quantitative complementation tests wi...
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PMID: 20667161
PDF is available here.
PDF is available here.
Minerva Pediatrica (62)3 Suppl 1 2010
Abstract
Journal of Morphology (271)3 2010
Abstract
The nuchal organs of annelid Laonice bahusiensis (Spionidae) from northern Europe have been studied using scanning and transmission electron microscopy. L. bahusiensis is the first spionid species in which extensively developed, continuous nuchal organs are described. The nuchal orga...
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PMID: 20013792
PDF is available here.
PDF is available here.
Journal of Morphology (271)3 2010
Abstract
The nuchal organs of annelid Laonice bahusiensis (Spionidae) from northern Europe have been studied using scanning and transmission electron microscopy. L. bahusiensis is the first spionid species in which extensively developed, continuous nuchal organs are described. The nuchal orga...
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PMID: 20013792
PDF is available here.
PDF is available here.
Scientific American (301)6 2009
Abstract
Abstract
We use a large-scale point neuron model of the locust AL to investigate this shift in stimulus encoding and potential consequences for odor discrimination. Consistent with experiment, our model produces stimulus-sensitive, dynamically evolving populations of active AL neurons. Our model relies criti...
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PMID: 19548077
PDF is available here.
PDF is available here.
Abstract
Abstract
We have developed a group of functions implementing a mixture of common and original procedures and producing graphical or numerical outputs. These functions can be run in batch mode and do moreover produce an organized report of their results in an HTML file. A R package: Spike Train Analysis with...
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PMID: 19473708
PDF is available here.
PDF is available here.
EMBO Reports (10)6 2009
Abstract
We isolated mutations in sequoia, which encodes a putative zinc-finger transcription factor that has previously been shown to have a role in dendritogenesis. Here, we show that adult clones mutant for seq exhibit a loss of hair cells and a gain of socket cells. We propose that the seq mutant phenoty...
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PMID: 19444309
PDF is available here.
PDF is available here.
médecine/sciences (25)4 2009
Abstract
Abstract
The basic organization of the rotifer brain has been known for nearly a century; yet, fine details on its structure and organization remain limited despite the importance of rotifers in studies of evolution and population biology. To gain insight into the structure of the rotifer brain, and provide...
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PMID: 19107808
PDF is available here.
PDF is available here.
Abstract
We observed a pad-like structure, the flap-like tibial lobe (fl) on the ventral surface on the tarsus, the euplantulae, with several sensilla basiconica, which is present in each leg....
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PMID: 19334295
PDF is available here.
PDF is available here.
Abstract
We used this protocol to investigate the ability of these bees to use olfactory information obtained within the colony in an experimental context: the PER paradigm. We compared their success in solving a classical differential conditioning depending on the previous olfactory experiences received ins...
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PMID: 19018542
PDF is available here.
PDF is available here.
Abstract
This review presents the analysis of the systematized data on human juxtaoral organ (JOO) development, structure and function based on the results of classical and recent morphological studies. JOO morphogenesis is traced, including the appearance of its anlage at the bottom of the primitive mouth, e...
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PMID: 20358781
PDF is available here.
PDF is available here.
Abstract
Basic variants of the evolutional program for formation of simple sensor system--structural models of gravitation receptor, organ of vision, chemoreceptor organ as well as of the nervous system at early stages of the metazoan phylogenesis--are considered from results of our own morphofunctional stud...
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PMID: 19435256
PDF is available here.
PDF is available here.
Parazitologiya (43)1 2009
Abstract
The main sensory organs (eyes, Haller's organ, and palpal organ) of Dermacentor niveus were examined in scanning and transmitting electron microscopes. The Haller's organ consists of a capsule with five porous SW-WP olfactory sensilla and pleomorphs; anterior pit with porous SW-WP, two grooved DW-WP...
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PMID: 19370977
PDF is available here.
PDF is available here.
Developmental Biology (324)2 2008
Abstract
We report a new function required for SOP determination mediated by the zinc finger transcription factor Klumpfuss (Klu). Klu participates in a novel mechanism that appears to regulate the expression as well as the activity of the proneural proteins. Our analysis indicates that Klu is a repressor of...
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PMID: 18831969
PDF is available here.
PDF is available here.
Abstract
We examined the external morphology of the antennal sensilla of male and female D. citri using scanning electron microscopy (SEM) and determined the putative functions of the identified sensilla using transmission electron microscopic (TEM) techniques. The filiform antennae of D. citri were of the c...
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PMID: 18573664
PDF is available here.
PDF is available here.
Abstract
We ablated the sheath glial cell of the major sensory organ of Caenorhabditis elegans. We found that glia-ablated animals exhibit profound sensory deficits and that glia provide activities that affect neuronal morphology, behavior generation, and neuronal uptake of lipophilic dyes. To understand the...
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PMID: 18974354
PDF is available here.
PDF is available here.
Abstract
We investigated the neuronal structures of the proximal tibiae of Stenopelmatus spec. with the hypothesis that internal sensory structures are similar to those in tympanate Ensifera. In Stenopelmatus the complex tibial organ consists of three neuronal parts: the subgenual organ, the intermediate org...
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PMID: 18729154
PDF is available here.
PDF is available here.
Abstract
We studied the effects of inhibitors of K(+)/H(+) P-ATPase (bafilomycin A1, omeprazole and Na-orthovanadate), of K(+)/Cl(-) co-transport (bumetanide), of Cl(-) channels (NPPB) and of a K(+) channel blocker (BaCl(2)). The relationship between TEP amplitude and spike firing activity was also studied....
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PMID: 18818932
PDF is available here.
PDF is available here.
Nature Neuroscience (11)10 2008
Abstract
We found that odor presentations that support associative conditioning elicited only one or two spikes on the odor's onset (and sometimes offset) in each of a small fraction of Kenyon cells. Using associative conditioning procedures that effectively induced learning and varying the timing of reinfor...
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PMID: 18794840
PDF is available here.
PDF is available here.
Journal of Neurophysiology (100)4 2008
Abstract
Adaptation controls the gain of the input-function of the cockroach's cold cell during slowly oscillating changes in temperature. When the oscillation period is long, the cold cell improves its gain for the rate of temperature change at the expense of its ability to code instantaneous temperature. W...
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PMID: 18684906
PDF is available here.
PDF is available here.
Abstract
We describe a pathway feature in the crayfish tailflip reflex: A position-dependent linear gradation in sensory axonal conduction velocities that can ensure the coincident arrival of impulses from near-field hydrodynamic sensilla along the crayfish antennules at their synaptic contacts with central...
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PMID: 18794524
PDF is available here.
PDF is available here.
Current Biology (18)18 2008
Abstract
We have characterized repeatable variation in olfactory preference between five classical D. melanogaster wild-type strains toward a large array of natural host odors and synthetic compounds. By recording the rate of attraction over up to 24 hr, we could compare stimuli varying in attractiveness and...
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PMID: 18804372
PDF is available here.
PDF is available here.
Genes & Development (22)17 2008
Abstract
Our review summarizes what has been learned from genetic studies of the Wnt pathway by the analysis of conditional beta-catenin loss- and gain-of-function mice....
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PMID: 18765787
PDF is available here.
PDF is available here.
Journal of Experimental Biology (211)Pt 17 2008
Abstract
We studied how the difference in male preference correlates with differences in wiring of olfactory input and output neurons in the antennal lobe (AL). Activity-dependent anterograde staining, intracellular recording and immunocytochemistry were used to establish the structure and function of male o...
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PMID: 18723543
PDF is available here.
PDF is available here.
Zoological Science (25)9 2008
Abstract
Wind-sensitive giant interneurons (GIs) in the cricket Gryllus bimaculatus show functional recovery after unilateral cercal ablation. Physiological properties such as threshold velocity and response magnitude (number of action potentials elicited) of GIs 8-1, 9-1, 9-2 and 9-3 to an air puff stimulus...
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PMID: 19267603
PDF is available here.
PDF is available here.
Abstract
The responses of antennal contact chemoreceptors, in the polyphagous predatory ground beetle Pterostichus oblongopunctatus, to twelve 1-1,000 mmol l(-1) plant sugars and seven 10-100 mmol l(-1) amino acids were tested. The disaccharides with an alpha-1.4-glycoside linkage, sucrose and maltose, were...
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PMID: 18625236
PDF is available here.
PDF is available here.
Insect Molecular Biology (17)4 2008
Abstract
Genomic and proteomic analyses of the antennae of the light brown apple moth, Epiphyas postvittana (Walker) (Lepidoptera: Tortricidae) were undertaken to identify genes and proteins potentially involved in odorant and pheromone binding and turnover. An EST approach yielded 5739 sequences, comprising...
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PMID: 18651918
PDF is available here.
PDF is available here.
Abstract
We present an exception to that association with the description of glandular setae on maxillulary and maxillary endites of the remipede Speleonectes tanumekes. This introduces a function associated with crustacean setae beyond the general functions currently assigned to crustacean setae: sensory fu...
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PMID: 18403262
PDF is available here.
PDF is available here.
Abstract
We identify a single ipsilateral centrifugal neuron with arborizations in higher brain centers; the varicosities of this neuron display volumetric changes in response to both blood feeding and during a circadian rhythm. Six to eight pairs of serotonin-immunoreactive neurons are identified in the pri...
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PMID: 18424232
PDF is available here.
PDF is available here.
Abstract
The electrophysiological response of labellar and tarsal chemosensilla in the blowfly Phormia regina was studied in response to a complex stimulus naturally encountered by flies such as sheep faeces, and to beef liver, a proteinaceous feeding source. Responses were investigated both before or after...
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PMID: 18634799
PDF is available here.
PDF is available here.
Abstract
We examined the external morphology of the antennal sensilla of this parasitoid using scanning electron microscopy. Antennae of male and female P. cerealellae are geniculate in shape, approximately 1300mum in length, and consist of 15 antennomeres. Eight morphological sensilla types were recorded in...
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PMID: 17827023
PDF is available here.
PDF is available here.
Abstract
We demonstrated that P. tricuspis uses fire ant semiochemicals to locate host worker ants. To provide a solid background in support of our research on mechanisms of host location and olfaction in phorid flies, we studied the morphology of the antennal sensilla of both sexes of P. tricuspis using sca...
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PMID: 17869528
PDF is available here.
PDF is available here.
Abstract
We tackled this issue using the wind-sensing system of crickets, the cerci, two conical abdominal appendages covered with arrays of filiform hairs. Scanning electron microscopy coupled with 3D reconstruction methods were used for mapping of all cercal filiform hairs. The hairs are arranged according...
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PMID: 18553087
PDF is available here.
PDF is available here.
Abstract
We investigated the spatiotemporal distribution of Rdh10 gene transcripts by in situ hybridization and quantitative polymerase chain reaction (PCR) during development of the brain and sensory organs. Although Rdh10 relative mRNA levels decline throughout brain development, we show a strong and lasti...
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PMID: 18399539
PDF is available here.
PDF is available here.
Abstract
We identified string and dappled as being important for the proper formation of adult external sensory (ES) organs. string is a G2 regulator. dappled has no described function but is implicated in tumorigenesis. The mis-expression effect from string was analysed using timed over expression during ad...
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PMID: 18420029
PDF is available here.
PDF is available here.
Trends in Biotechnology (26)6 2008
Abstract
Emerging information about the ability of insects to detect and associatively learn has revealed that they could be used within chemical detection systems. Such systems have been developed around free-moving insects, such as honey bees. Alternatively, behavioral changes of contained insects can be i...
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PMID: 18375006
PDF is available here.
PDF is available here.
Abstract
We suspected that gustatory responses by the receptors on the proboscis might differ in these species. Among the three sugars tested, sucrose elicited the greatest probing (behavioral) responses and was followed by fructose and glucose. A. hyperbius showed higher sugar sensitivity than V. indica in...
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PMID: 18365205
PDF is available here.
PDF is available here.
Journal of Neuroscience (28)21 2008
Abstract
We develop a quantitative model of the sensor to guide its optimization and achieved an approximate threefold increase in fractional fluorescence change at a lower DPA concentration of 2 mum. Using this optimized voltage reporter, we perform optical recordings of evoked activity in the Drosophila an...
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PMID: 18495892
PDF is available here.
PDF is available here.
Abstract
Abstract
After injury many arthropods are able to regenerate lost body parts and their innervation. Here, regeneration was studied in the desert locust Schistocerca gregaria after amputation of the midleg tibia and tarsus in the first larval instar. A regenerate was formed first in the third larval instar an...
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PMID: 18342264
PDF is available here.
PDF is available here.
Abstract
Thirty-nine species belonging to different families of termites are studied to give a comprehensive view of the evolution of the sternal glands. Several modifications occurring at cuticular and cytological levels are described in neuter castes. The outer epicuticle is always pierced by epicuticular...
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PMID: 18207459
PDF is available here.
PDF is available here.
Abstract
The nervous system copes with variability in the external and internal environment by using neuromodulators to adjust the efficacy of neural circuits. The role of serotonin (5HT) as a neuromodulator of olfactory information processing in the antennal lobe (AL) of Manduca sexta was examined using mul...
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PMID: 18322001
PDF is available here.
PDF is available here.
Journal of Neuroscience (28)18 2008
Abstract
We show that mutations in the Drosophila gene for G(q)alpha (dgq) significantly reduce both the amplitude of the field potentials recorded from the whole antenna in responses to odorants as well as the frequency of evoked responses of individual sensory neurons. This requirement for G(q)alpha is for...
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PMID: 18448651
PDF is available here.
PDF is available here.
Journal of Morphology (269)5 2008
Abstract
We used immunohistochemistry, epi-fluorescence, and confocal laser scanning microscopy to label and image sensory cells, nerves, and their organization relative to the anterior central nervous system in several spionid polychaete species. Antibodies directed against acetylated alphatubulin were used...
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PMID: 18157865
PDF is available here.
PDF is available here.
Neuroscience Letters (435)2 2008
Abstract
We used the American cockroach Periplaneta americana and tested the impact of amputation of both its antennae on the spontaneous magnetosensitive behaviour. By means of a full-laboratory assay we registered a non-specific unlearned movement reaction to the changing magnetic environment within the fr...
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PMID: 18337004
PDF is available here.
PDF is available here.
Abstract
We predicted that some neurons in the CC respond to mechanical antennal stimulation. We used 16-channel probes to record from broad regions within the CC, while mechanically stimulating one or the other antenna. Using cluster cutting procedures, we examined 277 units in 31 preparations. Many of thes...
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PMID: 18180927
PDF is available here.
PDF is available here.
Abstract
The sensilla are sensory organs formed by cuticular and cellular structures specialized in reception of chemical and physical stimuli from the environment and transmission to the insect's central nervous system. In function of the great concentration of sensilla, the antennae are the main organs for...
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PMID: 17992691
PDF is available here.
PDF is available here.
Abstract
We investigated the chemical basis for low attractiveness. We recorded behaviors of Aedes aegypti toward the hands of human volunteers and toward the volatile chemicals produced by their bodies. Some individuals, and their corresponding volatiles, elicited low upwind flight, relative attraction, and...
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PMID: 18306972
PDF is available here.
PDF is available here.
Abstract
We found in Drosophila that loss of a microRNA, miR-279, leads to formation of CO2 neurons in the MPs. miR-279 acts through down-regulation of the transcription factor Nerfin-1. The ectopic neurons are hybrid cells. They express CO2 receptors and form connections characteristic of CO2 neurons, while...
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PMID: 18309086
PDF is available here.
PDF is available here.
Abstract
Our data indicate the existence of functional nAChRs on adult AL cells that differ from nAChRs on pupal Kenyon cells from mushroom bodies by their pharmacological profile and ionic permeability, suggesting that these receptors could be implicated in different functions....
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PMID: 18004599
PDF is available here.
PDF is available here.
Journal of Experimental Biology (211)Pt 6 2008
Abstract
We focus on Gnathonemus petersii (Günther 1862), an African fish of the family Mormyridae with a characteristic chin appendix, the Schnauzenorgan. Behavioural and anatomical results suggest that the mobile Schnauzenorgan and the nasal region serve special functions in electroreception, and can ther...
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PMID: 18310118
PDF is available here.
PDF is available here.
Zoological Science (25)3 2008
Abstract
The effects of self-generated wind on the compensational recovery of escape direction were investigated in unilaterally cercus-ablated crickets, Gryllus bimaculatus. To separate walking and self-generated wind during walking, unilaterally cercus-ablated crickets were placed on a styrofoam ball that...
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PMID: 18393559
PDF is available here.
PDF is available here.
Cell and Tissue Research (331)3 2008
Abstract
The organization of the antennal muscles, nerves, and motor neurons has been investigated in the cockroach, Periplaneta americana. Antennal movements have been observed by video analysis, muscle actions have been determined by dissection and direct mechanical testing, and the motor neurons innervati...
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PMID: 18193285
PDF is available here.
PDF is available here.
Current Biology (18)4 2008
Abstract
A recent study has shown that, unusually, both the sensory and motor capabilities of an electric fish are omnidirectional. This matching of motor and sensory spaces helps the fish to hunt prey efficiently - particularly important given their energetically costly active sensory system.
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PMID: 18302925
PDF is available here.
PDF is available here.