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  • 1
    Online-Ressource
    Online-Ressource
    Frontiers Media SA ; 2018
    In:  Frontiers in Human Neuroscience Vol. 12 ( 2018-8-14)
    In: Frontiers in Human Neuroscience, Frontiers Media SA, Vol. 12 ( 2018-8-14)
    Materialart: Online-Ressource
    ISSN: 1662-5161
    Sprache: Unbekannt
    Verlag: Frontiers Media SA
    Publikationsdatum: 2018
    ZDB Id: 2425477-0
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Online-Ressource
    Online-Ressource
    Frontiers Media SA ; 2017
    In:  Frontiers in Human Neuroscience Vol. 11 ( 2017-07-21)
    In: Frontiers in Human Neuroscience, Frontiers Media SA, Vol. 11 ( 2017-07-21)
    Materialart: Online-Ressource
    ISSN: 1662-5161
    Sprache: Unbekannt
    Verlag: Frontiers Media SA
    Publikationsdatum: 2017
    ZDB Id: 2425477-0
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    In: Frontiers in Systems Neuroscience, Frontiers Media SA, Vol. 16 ( 2022-5-30)
    Kurzfassung: Ecological chemosensory stimuli almost always evoke responses in more than one sensory system. Moreover, any sensory processing takes place along a hierarchy of brain regions. So far, the field of chemosensory neuroimaging is dominated by studies that examine the role of brain regions in isolation. However, to completely understand neural processing of chemosensation, we must also examine interactions between regions. In general, the use of connectivity methods has increased in the neuroimaging field, providing important insights to physical sensory processing, such as vision, audition, and touch. A similar trend has been observed in chemosensory neuroimaging, however, these established techniques have largely not been rigorously applied to imaging studies on the chemical senses, leaving network insights overlooked. In this article, we first highlight some recent work in chemosensory connectomics and we summarize different connectomics techniques. Then, we outline specific challenges for chemosensory connectome neuroimaging studies. Finally, we review best practices from the general connectomics and neuroimaging fields. We recommend future studies to develop or use the following methods we perceive as key to improve chemosensory connectomics: (1) optimized study designs, (2) reporting guidelines, (3) consensus on brain parcellations, (4) consortium research, and (5) data sharing.
    Materialart: Online-Ressource
    ISSN: 1662-5137
    Sprache: Unbekannt
    Verlag: Frontiers Media SA
    Publikationsdatum: 2022
    ZDB Id: 2453005-0
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Online-Ressource
    Online-Ressource
    Springer Science and Business Media LLC ; 2022
    In:  Scientific Reports Vol. 12, No. 1 ( 2022-03-12)
    In: Scientific Reports, Springer Science and Business Media LLC, Vol. 12, No. 1 ( 2022-03-12)
    Kurzfassung: Midpalatal suture was analysed with cone beam computed tomography to identify its maturation with respect to age and maxillary-complex growth in 72 patients 9- to 21-year-old. Maxillary-complex was divided in premaxillary, maxillary, and palatine segment. Interdigitation and ossification of midpalatal suture, its density relative to hard tissues and soft tissues, and midpalatal suture density ratio were measured for each segment. Correlation of each parameter with age and maxillary-complex length was analysed, and classification trees were developed for staging parameters. Midpalatal suture maturation stages (MPSMS, from A to E) were applied to assess relationship with age and maxillary-complex length. Regarding age, ossification increased in maxillary segment of males ( r S  = 0.39, p  = 0.032), while suture density relative to soft tissues increased in maxillary ( r S  = 0.37, p  = 0.042) and palatine segments ( r S  = 0.41, p  = 0.027) of males and in palatine segment of females ( r S  = 0.32, p  = 0.041). In males, suture density relative to soft tissues discriminated two age-stages ( p  = 0.024), and the same parameter ( p  = 0.023) paired with ossification ( p  = 0.027) discriminated two length-stages. MPSMS identified length-differences between stage A and B in females ( p  = 0.001). Midpalatal-suture ossification and its density relative to soft tissues showed some relationship with age and maxillary-complex length, especially in males. However, challenging staging and limitations in the imaging method may limit clinical applications.
    Materialart: Online-Ressource
    ISSN: 2045-2322
    Sprache: Englisch
    Verlag: Springer Science and Business Media LLC
    Publikationsdatum: 2022
    ZDB Id: 2615211-3
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Online-Ressource
    Online-Ressource
    The Angle Orthodontist (EH Angle Education & Research Foundation) ; 2021
    In:  The Angle Orthodontist Vol. 91, No. 1 ( 2021-01-01), p. 88-97
    In: The Angle Orthodontist, The Angle Orthodontist (EH Angle Education & Research Foundation), Vol. 91, No. 1 ( 2021-01-01), p. 88-97
    Kurzfassung: To use both absolute anteroposterior maxillary complex length (APMCL) and relative APMCL to investigate the relationship between the maxillary complex, its individual bony segments, and their association to the anterior cranial base. In addition, the relationship between length and position of the maxillary complex was analyzed. Materials and Methods Sixty human skulls were analyzed using cone beam computed tomography. The maxillary complex length was measured between anterior and posterior nasal spine (ans-pns), and the average was used as the cut-off to identify a high- and a low-length group based on absolute APMCL. The length ratio between the maxillary complex and the anterior cranial base (ans-pns/SN) was used to identify the two groups based on relative APMCL. The anterior cranial base length and the lengths of the maxillary complex bones were compared between the high- and low-length groups. Results Based on absolute APMCL, individuals with shorter maxillary complex had shorter anterior cranial base (P = .003), representing normal proportions. Based on relative APMCL, individuals with shorter maxillary complex had longer anterior cranial base and vice versa (P = .014), indicating disproportions. Individuals with shorter maxillary complex exhibited shorter maxilla (Δ = −1.5 mm, P = .014). Conclusions When skeletal deformity of the midface is suspected, individual disproportions in the anteroposterior length of the maxillary complex in relation to the anterior cranial base (relative measurements) should be assessed through radiological imaging. A shorter maxillary complex may be associated with a shorter maxilla, and not with a shorter premaxilla or palatine bone.
    Materialart: Online-Ressource
    ISSN: 0003-3219
    RVK:
    Sprache: Englisch
    Verlag: The Angle Orthodontist (EH Angle Education & Research Foundation)
    Publikationsdatum: 2021
    ZDB Id: 2026352-1
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    In: Anatomical Sciences Education, Wiley, Vol. 14, No. 1 ( 2021-01), p. 62-70
    Kurzfassung: Learning bone anatomy of the skull is a complex topic involving three‐dimensional information. The impact of the use of human dry skulls and cone beam computed tomography (CBCT) imaging was investigated in the teaching of undergraduate dental students. Sixty‐four first‐year students in the University of Hong Kong were randomly divided into eight groups. Four teaching methods were tested: (1) CBCT followed by standard lecture, (2) CBCT followed by lecture with skulls, (3) standard lecture followed by CBCT, and (4) lecture with skulls followed by CBCT. After each, students were given a multiple‐choice questionnaire to assess their objective learning outcome (20 questions) and a questionnaire for their subjective satisfaction (10 statements). Surveys were assessed with Cronbach's alpha, Kendall's tau‐b, and principal components analysis. Data were analyzed with Student's t ‐test and a one‐way ANOVA (significance α = 0.05). Standard lecture followed by CBCT showed the highest learning outcome score (81.6% ± 14.1%), but no significant difference was present among four teaching methods. Cone beam computed tomography followed by lecture with skulls scored the highest overall subjective satisfaction (4.9 ± 0.8 out of 6), but no significant difference was present among teaching methods. Nevertheless, students' perception of learning was positively influenced by the use of skulls ( P  = 0.018). The timing of administration of the CBCT did not affect students' subjective satisfaction or objective learning outcome. Students perceived to learn more by using skulls, but their objective learning outcomes were not significantly affected. A discrepancy seems to exist between students' perception of learning and their effective performance.
    Materialart: Online-Ressource
    ISSN: 1935-9772 , 1935-9780
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2021
    ZDB Id: 2403787-4
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    Online-Ressource
    Online-Ressource
    Nihon University School of Dentistry ; 2021
    In:  Journal of Oral Science Vol. 63, No. 3 ( 2021), p. 201-208
    In: Journal of Oral Science, Nihon University School of Dentistry, Vol. 63, No. 3 ( 2021), p. 201-208
    Materialart: Online-Ressource
    ISSN: 1343-4934 , 1880-4926
    Sprache: Englisch
    Verlag: Nihon University School of Dentistry
    Publikationsdatum: 2021
    ZDB Id: 2197202-3
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    Online-Ressource
    Online-Ressource
    Wiley ; 2020
    In:  Human Brain Mapping Vol. 41, No. 9 ( 2020-06-15), p. 2460-2473
    In: Human Brain Mapping, Wiley, Vol. 41, No. 9 ( 2020-06-15), p. 2460-2473
    Kurzfassung: Over the past two decades, functional neuroimaging has not only grown into a large field of research, but also substantially evolved. Here we provide a quantitative assessment of these presumed in sample composition and data analysis, using fMRI studies on food/taste research published between 1998 and 2019 as an exemplary case in which the scientific objectives themselves have remained largely stable. A systematic search for papers written in English was done using multiple databases and identified 426 original articles that were subsequently analyzed. The median sample size significantly increased from 11.5 to 35.5 while the ratio of male to female subjects remained stable. There were, however, more papers involving female subjects only, rather than male subjects only, since 2003. There was a decline in uncorrected results and statistical correction by false‐discovery rate. Reflecting a trend toward more conservative thresholding, the number of foci reported per paper did not change significantly and sample size (power) did not correlate with the number of reported foci. The median journal impact factor and the normalized number of citations (citations per year) of the papers, in turn, showed a significantly decreasing trend. Number of citations negatively correlated to sample size, publication year but positively correlated to journal impact factor, and was also influenced by statistical correction method. There was a decreasing trend in studies recruiting both left‐handed and right‐handed subjects. In summary, the present paper quantifies several large‐scale trends that have often been anecdotally discussed and reveals the changing nature of neuroimaging studies that may be considered when pursuing meta‐analytic approaches.
    Materialart: Online-Ressource
    ISSN: 1065-9471 , 1097-0193
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2020
    ZDB Id: 1492703-2
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
    Online-Ressource
    Online-Ressource
    Wiley ; 2019
    In:  Journal of Sleep Research Vol. 28, No. 6 ( 2019-12)
    In: Journal of Sleep Research, Wiley, Vol. 28, No. 6 ( 2019-12)
    Kurzfassung: Existing evidence for brain morphometric changes and functional connectivity alterations in patients with obstructive sleep apnea is mixed. The current study aimed to meta‐analyse the neuroimaging data, and thus synthesize a brain map showing locations with morphometric and functional connectivity differences between patients with obstructive sleep apnea and controls. Published studies to 2018 were retrieved and included into the analysis if they reported such between‐group differences using voxel‐based morphometry or resting‐state functional magnetic resonance imaging, and reported the results in the form of brain coordinates based on whole‐brain analysis. Twelve voxel‐based morphometry and seven resting‐state functional magnetic resonance imaging studies that comprised a total of 1,113 participants fulfilled the inclusion criteria. Compared with healthy controls, patients with obstructive sleep apnea had reduced resting‐state connectivity in the right anterior cingulate and larger grey matter volume in the right insula. Patients with obstructive sleep apnea do have morphometric and resting‐state connectivity alterations in the brain. These neural correlates may help explain the effects of obstructive sleep apnea on the emotion, cognition and quality of life of patients, and may be used in future for evaluating its treatment outcome.
    Materialart: Online-Ressource
    ISSN: 0962-1105 , 1365-2869
    URL: Issue
    Sprache: Englisch
    Verlag: Wiley
    Publikationsdatum: 2019
    ZDB Id: 2007459-1
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 10
    Online-Ressource
    Online-Ressource
    Frontiers Media SA ; 2017
    In:  Frontiers in Human Neuroscience Vol. 11 ( 2017-09-20)
    In: Frontiers in Human Neuroscience, Frontiers Media SA, Vol. 11 ( 2017-09-20)
    Materialart: Online-Ressource
    ISSN: 1662-5161
    Sprache: Unbekannt
    Verlag: Frontiers Media SA
    Publikationsdatum: 2017
    ZDB Id: 2425477-0
    Standort Signatur Einschränkungen Verfügbarkeit
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