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282 results for “imagination”
Figure 1 from: Aracil A, Pérez-Bañón C, Mengual X, Radenković S, Ståhls G, Vujić A, Rojo S (2019) New information about the pre-imaginal morphology of genus Graptomyza (Diptera, Syrphidae, Volucellini): description of third-instar larva and re-description of puparium of G. signata (Walker, 1860). African Invertebrates 60(1): 15-30. https://doi.org/10.3897/afrinvertebr.60.31521
Figure 1 Graptomyzasignata larvae and puparium. A larvae, ventral view B larvae, dorsal view C prothorax of larvae, ventral view D cephalopharyngeal skeleton, dorsal view E cephalopharyngeal skeleton, lateral view F pupae not cleaned, dorsal view G puparium cleaned, lateral view. Abbreviations: Ac – Antennomaxillary complex; C – Cibarium; Ce – Clypeal sclerite; Dc – Dorsal cornu; Dl – Dorsal lip; L – Labrum; Ll – Lateral lip; Lpt – Lappets; M – Mandibles; Ml – Mandibular lobes; Oc – Oral cavity; T – Tentorium; Tbr – Tentorial bar; Tr – Transversal ridges; Vc – Ventral cornu; Vl – Ventral lip. Scale bars: 2 mm (A, B, F, G), 0.5 mm (C, E), 0.25 mm (D).
Fourteen-channel EEG with Imagined Speech (FEIS) dataset
<pre>><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> Welcome to the FEIS (Fourteen-channel EEG with Imagined Speech) dataset. <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< The FEIS dataset comprises Emotiv EPOC+ [1] EEG recordings of: * 21 participants listening to, imagining speaking, and then actually speaking 16 English phonemes (see supplementary, below) * 2 participants listening to, imagining speaking, and then actually speaking 16 Chinese syllables (see supplementary, below) For replicability and for the benefit of further research, this dataset includes the complete experiment set-up, including participants' recorded audio and 'flashcard' screens for audio-visual prompts, Lua script and .mxs scenario for the OpenVibe [2] environment, as well as all Python scripts for the preparation and processing of data as used in the supporting studies (submitted in support of completion of the MSc Speech and Language Processing with the University of Edinburgh): * J. Clayton, "Towards phone classification from imagined speech using a lightweight EEG brain-computer interface," M.Sc. dissertation, University of Edinburgh, Edinburgh, UK, 2019. * S. Wellington, "An investigation into the possibilities and limitations of decoding heard, imagined and spoken phonemes using a low-density, mobile EEG headset," M.Sc. dissertation, University of Edinburgh, Edinburgh, UK, 2019. Each participant's data comprise 5 .csv files -- these are the 'raw' (unprocessed) EEG recordings for the 'stimuli', 'articulators' (see supplementary, below) 'thinking', 'speaking' and 'resting' phases per epoch for each trial -- alongside a 'full' .csv file with the end-to-end experiment recording (for the benefit of calculating deltas). To guard against software deprecation or inaccessability, the full repository of open-source software used in the above studies is also included. We hope for the FEIS dataset to be of some utility for future researchers, due to the sparsity of similar open-access databases. As such, this dataset is made freely available for all academic and research purposes (non-profit). ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> REFERENCING <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< If you use the FEIS dataset, please reference: * S. Wellington, J. Clayton, "Fourteen-channel EEG with Imagined Speech (FEIS) dataset," v1.0, University of Edinburgh, Edinburgh, UK, 2019. doi:10.5281/zenodo.3369178 ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> LEGAL <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< The research supporting the distribution of this dataset has been approved by the PPLS Research Ethics Committee, School of Philosophy, Psychology and Language Sciences, University of Edinburgh (reference number: 435-1819/2). This dataset is made available under the Open Data Commons Attribution License (ODC-BY): <a href="http://opendatacommons.org/licenses/by/1.0">http://opendatacommons.org/licenses/by/1.0</a> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ACKNOWLEDGEMENTS <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< The FEIS database was compiled by: Scott Wellington (MSc Speech and Language Processing, University of Edinburgh) Jonathan Clayton (MSc Speech and Language Processing, University of Edinburgh) Principal Investigators: Oliver Watts (Senior Researcher, CSTR, University of Edinburgh) Cassia Valentini-Botinhao (Senior Researcher, CSTR, University of Edinburgh) <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< METADATA ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> For participants, dataset refs 01 to 21: 01 - NNS 02 - NNS 03 - NNS, Left-handed 04 - E 05 - E, Voice heard as part of 'stimuli' portions of trials belongs to particpant 04, due to microphone becoming damaged and unusable prior to recording 06 - E 07 - E 08 - E, Ambidextrous 09 - NNS, Left-handed 10 - E 11 - NNS 12 - NNS, Only sessions one and two recorded (out of three total), as particpant had to leave the recording session early 13 - E 14 - NNS 15 - NNS 16 - NNS 17 - E 18 - NNS 19 - E 20 - E 21 - E E = native speaker of English NNS = non-native speaker of English (>= C1 level) For participants, dataset refs chinese-1 and chinese-2: chinese-1 - C chinese-2 - C, Voice heard as part of 'stimuli' portions of trials belongs to participant chinese-1 C = native speaker of Chinese <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< SUPPLEMENTARY ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> Under the international 10-20 system, the Emotiv EPOC+ headset 14 channels: F3 FC5 AF3 F7 T7 P7 O1 O2 P8 T8 F8 AF4 FC6 F4 The 16 English phonemes investigated in dataset refs 01 to 21: /i/ /u:/ /æ/ /ɔ:/ /m/ /n/ /ŋ/ /f/ /s/ /ʃ/ /v/ /z/ /ʒ/ /p /t/ /k/ The 16 Chinese syllables investigated in dataset refs chinese-1 and chinese-2: mā má mǎ mà mēng méng měng mèng duō duó duǒ duò tuī tuí tuǐ tuì All references to 'articulators' (e.g. as part of filenames) refer to the 1-second 'fixation point' portion of trials. The name is a layover from preliminary trials which were modelled on the KARA ONE database (<a href="http://www.cs.toronto.edu/~complingweb/data/karaOne/karaOne.html">http://www.cs.toronto.edu/~complingweb/data/karaOne/karaOne.html</a>) [3]. <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> [1] Emotiv EPOC+. <a href="https://emotiv.com/epoc">https://emotiv.com/epoc</a>. Accessed online 14/08/2019. [2] Y. Renard, F. Lotte, G. Gibert, M. Congedo, E. Maby, V. Delannoy, O. Bertrand, A. Lécuyer. “OpenViBE: An Open-Source Software Platform to Design, Test and Use Brain-Computer Interfaces in Real and Virtual Environments”, Presence: teleoperators and virtual environments, vol. 19, no 1, 2010. [3] S. Zhao, F. Rudzicz. "Classifying phonological categories in imagined and articulated speech." In Proceedings of ICASSP 2015, Brisbane Australia, 2015.</pre>
Figure 4 in The northernmost European record of Parasetodes respersellus Trichoptera: Leptoceridae) from the Courish Spit (Russia) with notes on its distribution and imaginal morphology
Figure 4. The distribution of Parasetodes respersellus in Europe. Asterisk: new site; triangle: data from the 1960s; circles: data from the 21st century.
FIGURE 4 in The imagines of Platybaetis selvai Kubendran et al., 2021 (Ephemeroptera: Baetidae) from China
FIGURE 4. Nymphal habitus of Platybaetis selvai. A. Dorsal view; B. Ventral view.
Data from: Contributions of subsurface cortical modulations to discrimination of executed and imagined grasp forces through stereoelectroencephalography
Stereoelectroencephalographic (SEEG) depth electrodes have the potential to record neural activity from deep brain structures not easily reached with other intracranial recording technologies. SEEG electrodes were placed through deep cortical structures including central sulcus and insular cortex. In order to observe changes in frequency band modulation, participants performed force matching trials at three distinct force levels using two different grasp configurations: a power grasp and a lateral pinch. Signals from these deeper structures were found to contain information useful for distinguishing force from rest trials as well as different force levels in some participants. High frequency components along with alpha and beta bands recorded from electrodes located near the primary motor cortex wall of central sulcus and electrodes passing through sensory cortex were found to be the most useful for classification of force versus rest although one participant did have significant modulation in the insular cortex. This study electrophysiologically corroborates with previous imaging studies that show force-related modulation occurs inside of central sulcus and insular cortex. The results of this work suggest that depth electrodes could be useful tools for investigating the functions of deeper brain structures as well as showing that central sulcus and insular cortex may contain neural signals that could be used for control of a grasp force BMI.
FIGURE 1 in The Nymph and Additional Imaginal Description of Epeorus melli new combination from China (Ephemeroptera: Heptageniidae)
FIGURE 1. Epeorus melli (Ulmer, 1925), habitus of female.
Figure 25-26 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figure 25-26 - Two larvae. 25 Larva of Gymnetron Auliense 26 Larva of Gymnetron vittipenne. Scales bars: 1 mm.
Figures 18-19 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figures 18-19 - Larva of Gymnetron miyoshii. 18 Spiracles, showing alignment 19 Pedal and mediosternal setae. Scales bars: 0.0325 mm (18), 0.05 mm (19).
Figures 41-50 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figures 41-50 - Gymnetron miyoshii. 41 Adult feeds on stems of Veronica anagallis-aquatica L. 42 Adult makes holes on bud of host plants 43 Adult lays eggs in buds 44 Egg in ovary surrounded by ovules 45 Egg visible through ovary wall 46 Adult seals the hole with fecal material 47 Dry fecal material 48 Galls of ovaries and normal flowers 49a–b Larva 50 Pupa.
Figures 9-10 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figures 9-10 - Larva of Gymnetron miyoshii. 9 Mature larva, lateral view 10 Head, dorsal view. Scale bars: 1 mm (9), 0.1 mm (10).
Figures 38-40 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figures 38-40 - Ecological habitats of three weevils. Gymnetron miyoshii 39 Gymnetron auliense 40 Gymnetron vittipenne.
Figures 1-8 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figures 1-8 - Adults of Gymnetron. 1–2 Gymnetron miyoshii 3–4 Gymnetron auliense 5–6 Gymnetron vittipenne 7–8 Gymnetron villosipenne. Scale bars: 1–8 1 mm.
Figures 55-58 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figures 55-58 - Gymnetron vittipenne. 55 Galls of stems 56 Larvae 57 Pupae, the two pupae on the left cell, one of them is from the right cell 58 Living host plants Veronica oxycarpa Boiss. with galls.
Figures 35-37 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figures 35-37 - Pupa of Gymnetron vittipenne. 35 Ventral view 36 Dorsal view 37 Lateral view. Scales bars: 1 mm.
Figures 16-17 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figures 16-17 - Larva of Gymnetron miyoshii. 16 Labium, ventral 17 Maxilla, dorsal. Scale bars: 0.1 mm.
Figures 51-54 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figures 51-54 - Gymnetron auliense. 51 Adult makes holes on bud of host plants, Veronica oxycarpa Boiss. 52 Larva 53 Pupa 54 Galls of ovaries and normal dead flowers.
Figures 11-15 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figures 11-15 - Larva of Gymnetron miyoshii. 11 Head, ventral view 12 Antenna 13 Mandible 14 Labrum and clypeus 15 Epipharynx. Scale bars: 0.1 mm (11), 0.025 mm (12), 0.1 mm (13–15).
Figure 23-24 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figure 23-24 - Larva of Gymnetron auliense . 23 Epipharynx 24 Spiracles, showing alignment. Scales bars: 0.1 mm (23), 0.025 mm (24).
Figures 20-22 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figures 20-22 - Pupa of Gymnetron miyoshii. 20 Ventral view 21 Dorsal view 22 Lateral view. Scales bars: 1 mm.
Figures 27-34 from: Jiang C, Zhang R (2015) The genus Gymnetron from China with description of pre-imaginal stages of G. miyoshii, G. auliense and G. vittipenne (Coleoptera,Curculionidae). ZooKeys 534: 61-84. https://doi.org/10.3897/zookeys.534.5967
Figures 27-34 - Larva of Gymnetron vittipenne. 27 Antenna 28 Mandible 29 Labrum and clypeus 30 Epipharynx 31 Labium, ventral 32 Maxilla, dorsal 33 Spiracles, showing alignment 34 Pedal area. Scales bars: 0.025 mm (27, 33), 0.1 mm (28–32), 0.05 mm (34).
ScienceDex guides
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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.