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Fig. 2 in An update on the spider genus Caponina Simon (Araneae: Caponiidae) with descriptions of three new six-eyed species from Colombia
Fig. 2. Caponina alejandroi sp. nov. A –C. ♂, holotype (IAvH-I 3747). D –E. ♀, paratype (IAvH-I 3749). A. Left palp, retrolateral view. B. Left palp, ventral view. C. Left palp, prolateral view. D. External genitalia, ventral view. E. Internal genitalia, dorsal view. Scale bars: A–D = 1.5 mm; E–G = 1 mm; H–I = 0.5 mm. Abbreviations: see Material and methods.
Fig. 4. A–C in An update on the spider genus Caponina Simon (Araneae: Caponiidae) with descriptions of three new six-eyed species from Colombia
Fig. 4. A–C. Caponina bochalema sp. nov., ♂, holotype (IAvH-I 3757). A. Left palp, retrolateral view. B. Left palp, ventral view. C. Left palp, prolateral view. – D–F. Caponina huila sp. nov., ♂, holotype (IAvH-I 3761). D. Left palp, retrolateral view. E. Left palp, ventral view. F. Left palp, prolateral view. Scale bars = 1 mm. Abbreviations: see Material and methods.
Fig. 3. A–B, E–G in An update on the spider genus Caponina Simon (Araneae: Caponiidae) with descriptions of three new six-eyed species from Colombia
Fig. 3. A–B, E–G. Caponina bochalema sp. nov., ♂, holotype (IAvH-I 3757). A. Habitus, dorsal view. B. Habitus, ventral view. E. Left palp, retrolateral view. F. Left palp, ventral view. G. Left palp, prolateral view. – C–D, H–J. Caponina huila sp. nov., ♂, holotype (IAvH-I 3761). C. Habitus, dorsal view. D. Habitus, ventral view. H. Left palp, retrolateral view. I. Left palp, ventral view. J. Left palp, prolateral view. Scale bars: A–D = 1.5 mm; E–J = 1 mm.
Fig. 1 in An update on the spider genus Caponina Simon (Araneae: Caponiidae) with descriptions of three new six-eyed species from Colombia
Fig. 1. Caponina alejandroi sp. nov. A–B, E–G. ♂, holotype (IAvH-I 3747). C–D, H–I. ♀, paratype (IAvH-I 3749). A. Habitus, dorsal view. B. Habitus, ventral view. C. Habitus, dorsal view. D. Habitus, ventral view. E. Left palp, retrolateral view. F. Left palp, ventral view. G. Left palp, prolateral view. H. External genitalia, ventral view. I. Internal genitalia, dorsal view. Scale bars: A–D = 1.5 mm; E–G = 1 mm; H–I = 0.5 mm. Abbreviations: see Material and methods.
Spectral sensitivity transition in the compound eyes of a twilight-swarming mayfly and its visual ecological implications
<p>Aquatic insect species that leave the water after larval development, such as mayflies, have to deal with extremely different visual environments in their different life stages. Measuring the spectral sensitivity of the compound eyes of the virgin mayfly (Ephoron virgo) resulted in differences between the sensitivity of adults and larvae. Larvae were primarily green-, while adults were mostly UV-sensitive. The sensitivity of adults and larvae were the same in the UV, but in the green spectral range, adults were 3.3 times less sensitive than larvae. Transmittance spectrum measurements of larval skins covering the eye showed that the removal of exuvium during emergence cannot explain the spectral sensitivity change of the eyes. Taking numerous sky spectra from the literature, the ratio of UV and green photons in the skylight was shown to be maximal for θ ≈ − 13° solar elevation, which is in the θmax = -14.7° and θmin = -7.1° typical range of swarming that was established from webcam images of real swarmings. We suggest that spectral sensitivity of both the larval and adult eyes are adapted to the optical environment of the corresponding life stages.</p>
Eye blink events ground truth for UBFC video dataset
<p>In this dataset we annotate the timing of blinking events for all 42 videos in the UBFC dataset (available at https://sites.google.com/view/ybenezeth/ubfcrppg).</p> <p>There is one .txt file for each subject, for which each line corresponds to the frame number of a blinking event (videos @30fps).</p> <p>This dataset was created for testing the performance of blinking detection algorithms and is motivated by the potential of using blinking behaviour to assess the depressive condition through video teleconsultation.</p> <p> </p>
Optomotor response (eye movment) and avoidance responses (locomotor activity) of crabs Neohelice granulata for LP-lesioned, control lesioned and control crabs
<p>When an animal rotates (whether it is an arthropod, a fish, a bird, or a human) a drift of the visual panorama occurs over its retina, termed optic flow. The image motion is stabilized by compensatory behaviors (driven by the movement of the eyes, head or the whole body depending on the animal) collectively termed optomotor response (OR). Dipteran lobula plate has been consistently linked with optic flow processing and the control of optomotor responses. Crabs have a neuropil similarly located and interconnected in the optic lobes, therefore referred to as a lobula plate also. Here we show that the crab's lobula plate is required for normal optomotor response since the response was lost or severely impaired in animals whose lobula plate had been lesioned. The effect was behavior-specific, since avoidance responses to approaching visual stimuli were not affected. Crabs require simpler optic flow processing than flies (because they move slower and in 2D instead of 3D), consequently their lobula plates are relatively smaller. Nonetheless, they perform the same essential role in the visual control of behavior. Our findings add a fundamental piece to the current debate on the evolutionary relationship between the lobula plates of insects and crustaceans.</p>
An eye tracking dataset for building façade inspection
<p>This dataset contains eye-tracking data of ten participants (students) for building facade inspection of two structures. The participants are in between their mid-twenties to thirties. The sessions were recorded for the preliminary eye tracking study to understand the inspector's reasoning and sense-making for damage assessment. The dataset was collected using Pro Glasses 3 wearable eye tracking system from Tobii Technology and further post-processing was done using Pro Lab software for data analysis purposes.</p>
Fig. 4 in A new Copelatus with small eyes from the Eastern Cape Wild Coast, South Africa (Coleoptera: Dytiscidae)
Fig. 4. Southern African Copelatus species compound eyes, all to same scale. A – C. mkambati sp. nov., paratype male; B – C. capensis Sharp, 1882 (Groote River, South Africa); C – C. erichsoni Guérin-Méneville, 1847 (St Lucia, South Africa); D – C. pulchellus (Klug, 1834) (St Lucia, South Africa).
Fig. 1. Copelatus species. A – C in A new Copelatus with small eyes from the Eastern Cape Wild Coast, South Africa (Coleoptera: Dytiscidae)
Fig. 1. Copelatus species. A – C. mkambati sp. nov. holotype male habitus; B – C. mkambati sp. nov., paratype female habitus; C – C. macellus Guignot, 1950, holotype male habitus; D – C. macellus, holotype labels. Scale bar applies to A–C. Figs C & D: © MNHN/Christophe Rivier.
Fig. 3. Copelatus species male genitalia. A – C. macellus Guignot, 1950 in A new Copelatus with small eyes from the Eastern Cape Wild Coast, South Africa (Coleoptera: Dytiscidae)
Fig. 3. Copelatus species male genitalia. A – C. macellus Guignot, 1950, median lobe; B – C. basilewskyi Bilardo & Pederzani, 1979, median lobe; C – C. mkambati sp. nov., median lobe and paramere. Scale bar in C = 0.5 mm. Note that lines on the paramere represent musculature, not surface ridges. A & B after GඎංGඇඈඍ (1961) and Bංඅൺඋൽඈ & Pൾൽൾඋඓൺඇං (1979), respectively.
Fig. 2 in Nannogermalus Marmoratus: A New Endemic Big-Eyed Bug From New Caledonia (Heteroptera: Lygaeoidea: Geocoridae)
Fig. 2. Details of Nannogermalus marmoratus (paratype male, NHMW): A = head in frontal view, B = head and pronotum, C = scutellum and hemelytron, D = abdomen. Scale: 100 µm
Fig. 1 in Nannogermalus Marmoratus: A New Endemic Big-Eyed Bug From New Caledonia (Heteroptera: Lygaeoidea: Geocoridae)
Fig. 1. Nannogermalus marmoratus (paratype male, NHMW): A = dorsal habitus, B = lateral view Scales: A = 1 mm, B = 100 µm
Unveiling Variations: A Comparative Study of VR Headsets Regarding Eye Tracking Volume, Gaze Accuracy, and Precision
<p>This repository contains the supplementary material to the paper "Unveiling Variations: A Comparative Study of VR Headsets Regarding Eye Tracking Volume, Gaze Accuracy, and Precision".</p> <p>Functions for converting between Fick angles, 3D vectors, and visual angles are authored by Per Baekgaard, available at <em><a href="https://github.com/baekgaard/fickpy">https://github.com/baekgaard/fickpy</a> </em></p> <p> </p> <p>In detail:</p> <p>- Dataset</p> <ul> <li>Analysis scripts</li> </ul> <p>- The Unity application:</p> <ul> <li>testHTCTobiiPro - TobiiPro licence is not included in the upload</li> <li>testViveProEye_sranipal</li> <li>testAndroid <ul> <li>scene: eval_viveFocus3, when building apk, use only Wave as xr provider</li> <li>scene: eval_metaQuestPro, Meta Quest Pro standalone</li> <li>scene: eval_metaQuestPro_pcVr, Meta Quest Pro tethered</li> </ul> </li> </ul>
Selection drives divergence of eye morphology in sympatric Heliconius butterflies
<p>When populations experience different sensory conditions, natural selection may favor sensory system divergence, affecting peripheral structures and/or downstream neural pathways. We characterized the outer eye morphology of sympatric <em>Heliconius</em> species from different forest types and their first-generation reciprocal hybrids to test for adaptive visual system divergence and hybrid disruption. In Panama, <em>Heliconius cydno </em>occurs in closed forests, whereas <em>Heliconius melpomene </em>resides at the forest edge. Among wild individuals, <em>H. cydno</em> has larger eyes than <em>H. melpomene</em>, and there are heritable, habitat-associated differences in the visual brain structures that exceed neutral divergence expectations. Notably, hybrids have intermediate neural phenotypes, suggesting disruption. To test for similar effects in the visual periphery, we reared both species and their hybrids in common garden conditions. We confirm that <em>H. cydno</em> has larger eyes and provide new evidence that this is driven by selection. Hybrid eye morphology is more <em>H. melpomene</em>-like despite body size being intermediate, contrasting with neural trait intermediacy. Overall, our results suggest that eye morphology differences between <em>H. cydno</em> and <em>H. melpomene</em> are adaptive, and that hybrids may suffer fitness costs due to a mismatch between the peripheral visual structures and previously described neural traits that could affect visual performance.</p>
Eyes on the Narrative: Exploring the Impact of Visual Realism and Audio Presentation on Gaze Behavior in AR Storytelling
<p>This repository contains the supplemental material for the paper "Eyes on the Narrative: Exploring the Impact of Visual Realism and Audio<br>Presentation on Gaze Behavior in AR Storytelling". </p> <ul> <li>eyetracking_data contains relevant data for plots and analysis</li> <li>GetNumGlances.csv extracts number of glances from raw data</li> <li>lookingAtAvatar.csv is processed data for time looked at avatar</li> <li>numberOfGlances.csv is process data on number of times looked at avatar</li> <li>Order_numberOfglances.Rmd and Order_lookingAtAvatar.Rmd calculates statistics on order effects.</li> <li>Order_Preprocessing.R gets relevant data for analysis of order effects</li> <li>Stats_*.Rmd analysis number of glances, time looked at agent, and correlation.</li> </ul> <p>Further additional material can be found at https://zenodo.org/doi/10.5281/zenodo.10458342 </p>
Fig. 1 in A new record of right eyed deep-sea flat fish Poecilopsetta colorata Gunther, 1880 (Pleuronectiformes: Pleuronectidae) from the Arabian Sea
Fig. 1 — Poecilopsetta colorata Gunther, 1880, specimen (SL: 118 mm): a) Lateral view of the adult specimen, and b) Lateral view of the juvenile P. colorata; collected in Southeastern Arabian Sea, Sakthikulangara fishing port, Kerala coast, India; depth of 200 – 300 m
Figure 7. Pigmented eyes. A in Systematics, evolution and phylogeny of Annelida - a morphological perspective
Figure 7. Pigmented eyes. A. Platynereis dumerilii (Nereididae). Two pairs of adult eyes (ey) situated on the prostomium. B. Microphthalmus similis (Errantia, incertae sedis). Arrowheads point to small prostomial eyes. C. Nicolea zostericola (Terebellidae). Numerous small pigmented eyes below tentacular crown (arrowheads). D. Nereis sp. (Nereididae). Section showing pigmented eye with lens (le); arrowhead points to zone with rhabdomeres, arrow: marks layer of cell bodies of photoreceptor cells below pigment cell layer (psc). E. Piscicola geometra (Clitellata). Pigmented eye with phaosomous photoreceptor cells (prc), arrowhead points to phaosomes. F. Saccocirrus papillocercus (Saccocirridae). Small pigmented eye, structurally indistinguishable from larval eye; arrow indicates inverse orientation of photoreceptive structures, eye cup communicates with exterior via small pore (arrowhead). G. Gyptis propinqua (Hesionidae). Multicellular-pigmented eye with lens, arrows indicate converse orientation of photoreceptive processes. - br = branchia, cu = cuticle, ep = epidermis, ey = eye, la = lateral antenna, le = lens, pa = palp, prc = photoreceptor cell, psc = pigmented supportive cell, smv = sensory microvilli, tc = tentacular cirri, te = tentacle. A-C: micrographs from living animals; D, E: histological sections, Azan staining; F, G: TEM micrographs.
Dataset: National Vision Holdings, Inc. (EYE) Stock Performance
This dataset provides historical stock market performance data for specific companies. It enables users to analyze and understand the past trends and fluctuations in stock prices over time. This information can be utilized for various purposes such as investment analysis, financial research, and market trend forecasting.
Eye morphology contributes to the ecology and evolution of the avian tree of life
<p>The avian eye is the single most important external anatomical trait for interpreting light environments by birds and varies widely in size and shape across the avian tree of life. The attached dataset provides measurements on eye size taken from preserved museum specimens for roughly one third of the avian tree of life (N = 3,475 species). The original dataset was collected by Stanley Ritland and Alice Hutchinson and archived as appendices in Stanley Ritland's Dissertation from the University of Chicago (1982): "The Allometry of the Vertebrate Eye".</p>
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.