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Wahn B, Schmitz L. A bonus task boosts people's willingness to offload cognition to an algorithm. Cogn Res Princ Implic 2024; 9:24. [PMID: 38652184 PMCID: PMC11039595 DOI: 10.1186/s41235-024-00550-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 04/03/2024] [Indexed: 04/25/2024] Open
Abstract
With the increased sophistication of technology, humans have the possibility to offload a variety of tasks to algorithms. Here, we investigated whether the extent to which people are willing to offload an attentionally demanding task to an algorithm is modulated by the availability of a bonus task and by the knowledge about the algorithm's capacity. Participants performed a multiple object tracking (MOT) task which required them to visually track targets on a screen. Participants could offload an unlimited number of targets to a "computer partner". If participants decided to offload the entire task to the computer, they could instead perform a bonus task which resulted in additional financial gain-however, this gain was conditional on a high performance accuracy in the MOT task. Thus, participants should only offload the entire task if they trusted the computer to perform accurately. We found that participants were significantly more willing to completely offload the task if they were informed beforehand that the computer's accuracy was flawless (Experiment 1 vs. 2). Participants' offloading behavior was not significantly affected by whether the bonus task was incentivized or not (Experiment 2 vs. 3). These results combined with those from our previous study (Wahn et al. in PLoS ONE 18:e0286102, 2023), which did not include a bonus task but was identical otherwise, show that the human willingness to offload an attentionally demanding task to an algorithm is considerably boosted by the availability of a bonus task-even if not incentivized-and by the knowledge about the algorithm's capacity.
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Affiliation(s)
- Basil Wahn
- Institute of Educational Research, Ruhr University Bochum, Bochum, Germany.
- Department of Cognitive Psychology and Ergonomics, Technische Universität Berlin, Berlin, Germany.
| | - Laura Schmitz
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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2
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Nelson AO, Schmitz L, Paz-Soldan C, Thome KE, Cote TB, Leuthold N, Scotti F, Austin ME, Hyatt A, Osborne T. Robust Avoidance of Edge-Localized Modes alongside Gradient Formation in the Negative Triangularity Tokamak Edge. Phys Rev Lett 2023; 131:195101. [PMID: 38000408 DOI: 10.1103/physrevlett.131.195101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/01/2023] [Accepted: 09/26/2023] [Indexed: 11/26/2023]
Abstract
In a series of high performance diverted discharges on DIII-D, we demonstrate that strong negative triangularity (NT) shaping robustly suppresses all edge-localized mode (ELM) activity over a wide range of plasma conditions: ⟨n⟩=0.1-1.5×10^{20} m^{-3}, P_{aux}=0-15 MW, and |B_{t}|=1-2.2 T, corresponding to P_{loss}/P_{LH08}∼8. The full dataset is consistent with the theoretical prediction that magnetic shear in the NT edge inhibits access to ELMing H-mode regimes; all experimental pressure profiles are found to be at or below the infinite-n ballooning stability limit. Our present dataset also features edge pressure gradients in strong NT that are closer to an H-mode than a typical L-mode plasma, supporting the consideration of NT for reactor design.
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Affiliation(s)
- A O Nelson
- Columbia University, New York, New York 10027, USA
| | - L Schmitz
- University of California-Los Angeles, Los Angeles, California 90095, USA
| | - C Paz-Soldan
- Columbia University, New York, New York 10027, USA
| | - K E Thome
- General Atomics, San Diego, California 92186, USA
| | - T B Cote
- General Atomics, San Diego, California 92186, USA
| | - N Leuthold
- Columbia University, New York, New York 10027, USA
| | - F Scotti
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - M E Austin
- The University of Texas at Austin, Austin, Texas 78712, USA
| | - A Hyatt
- General Atomics, San Diego, California 92186, USA
| | - T Osborne
- General Atomics, San Diego, California 92186, USA
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3
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Becker S, Simon S, Dindorf C, Dully J, Bartaguiz E, Schmitz L, Kothe N, Fröhlich M, Ludwig O. Fatigue as a key factor for testing knee stability with single leg drop landing for injury prevention and return to play tests. Front Sports Act Living 2023; 5:1243732. [PMID: 38022784 PMCID: PMC10657893 DOI: 10.3389/fspor.2023.1243732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Objectives Fatigue can decrease knee stability and increase the injury risk. However, fatigue is rarely being applied throughout movement analysis. The aim of this study was to investigate if the knee stability throughout SLDLs differ between cyclic and acyclic sports, before and after fatigue in general, and between the dominant and non-dominant leg of soccer players. Methods A total of 43 active male (n = 34) and female (n = 9) athletes (age: 26.5 ± 7.2) participated in this study with a pre-post-design. Subjects performed a single leg drop landing (SLDL) from a plyobox. For each leg, the two-dimensional frontal plane projection angle (FPPA) was analyzed. After pretesting the shuttle run test was performed until exhaustion, before repeating the measurements. Results ANOVA with repeated measures was applied and identified no significance difference for the FPPA between cyclic and acyclic sports (F = 0.98, p = 0.33), a significant difference before and after fatigue (F = 12.49, p = 0.002) and no significant difference between the dominant and non dominant leg of soccer players (F = 4.35, p = 0.26). Discussion Fatigue seems to be able to have a significant influence on knee stability in the frontal axis. Therefore, fatigue should be included in motion analysis for injury prevention and return to play tests because during this physical state most injuries happen.
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Affiliation(s)
- S. Becker
- Department of Sport Science, RPTU Kaiserslautern-Landau, Kaiserslautern, Germany
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4
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Schmitz L, Wahn B, Krüger M. Attention allocation in complementary joint action: How joint goals affect spatial orienting. Atten Percept Psychophys 2023:10.3758/s13414-023-02779-1. [PMID: 37684501 DOI: 10.3758/s13414-023-02779-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2023] [Indexed: 09/10/2023]
Abstract
When acting jointly, individuals often attend and respond to the same object or spatial location in complementary ways (e.g., when passing a mug, one person grasps its handle with a precision grip; the other receives it with a whole-hand grip). At the same time, the spatial relation between individuals' actions affects attentional orienting: one is slower to attend and respond to locations another person previously acted upon than to alternate locations ("social inhibition of return", social IOR). Achieving joint goals (e.g., passing a mug), however, often requires complementary return responses to a co-actor's previous location. This raises the question of whether attentional orienting, and hence the social IOR, is affected by the (joint) goal our actions are directed at. The present study addresses this question. Participants responded to cued locations on a computer screen, taking turns with a virtual co-actor. They pursued either an individual goal or performed complementary actions with the co-actor, in pursuit of a joint goal. Four experiments showed that the social IOR was significantly modulated when participant and co-actor pursued a joint goal. This suggests that attentional orienting is affected not only by the spatial but also by the social relation between two agents' actions. Our findings thus extend research on interpersonal perception-action effects, showing that the way another agent's perceived action shapes our own depends on whether we share a joint goal with that agent.
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Affiliation(s)
- Laura Schmitz
- Institute of Sports Science, Leibniz University Hannover, Hannover, Germany.
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Basil Wahn
- Institute of Educational Research, Ruhr University Bochum, Bochum, Germany
| | - Melanie Krüger
- Institute of Sports Science, Leibniz University Hannover, Hannover, Germany
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5
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Engel H, Cudia A, Rimachi R, Schmitz L, Gerain J, De Backer D, Cogan E, David C. [Febrile dyspnea in a 20 year-old woman]. Rev Med Interne 2023:S0248-8663(23)00562-3. [PMID: 37156694 DOI: 10.1016/j.revmed.2023.04.440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 04/23/2023] [Indexed: 05/10/2023]
Affiliation(s)
- H Engel
- Service des Soins Intensifs, Hôpital DELTA (CHIREC), Bruxelles, Belgique
| | - A Cudia
- Service des Soins Intensifs, Hôpital DELTA (CHIREC), Bruxelles, Belgique
| | - R Rimachi
- Service des Soins Intensifs, Hôpital DELTA (CHIREC), Bruxelles, Belgique
| | - L Schmitz
- Service des Soins Intensifs, Hôpital DELTA (CHIREC), Bruxelles, Belgique
| | - J Gerain
- Département de Médecine Interne, Hôpital DELTA (CHIREC), Bruxelles, Belgique
| | - D De Backer
- Service des Soins Intensifs, Hôpital DELTA (CHIREC), Bruxelles, Belgique; Université Libre de Bruxelles (ULB), Bruxelles, Belgique
| | - E Cogan
- Département de Médecine Interne, Hôpital DELTA (CHIREC), Bruxelles, Belgique; Université Libre de Bruxelles (ULB), Bruxelles, Belgique.
| | - C David
- Laboratoire de Neurogénétique et Neuroinflammation, Institut Imagine, 24, boulevard du Montparnasse, 75015 Paris, France
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6
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Yan Z, McKee GR, Schmitz L, Gohil P, Haskey S. Turbulence characteristics and flow dynamics impacts on the H-mode transition in favourable magnetic geometry with lower power threshold. Philos Trans A Math Phys Eng Sci 2023; 381:20210240. [PMID: 36587824 DOI: 10.1098/rsta.2021.0240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 11/02/2022] [Indexed: 06/17/2023]
Abstract
The L-H transition power threshold (PLH) in favourable magnetic geometry (ion ∇B drift pointing towards X-point) is much lower than in the unfavourable magnetic geometry (ion ∇B drift pointing away from X-point) on multiple tokamaks. In a systematic experiment on DIII-D, the ion ∇B drift direction was changed continuously from the unfavourable to favourable configuration during plasma discharges. During such process, the input neutral beam power was kept constant at a value that was above PLH for favourable configuration, but lower than PLH for unfavourable configuration. Toroidal field and plasma current were also kept constant and there was little change in the edge electron density ne and electron temperature Te profiles. The density fluctuation amplitude was reduced approaching the transition, while a large increase of turbulence Reynolds stress and flow shear were simultaneously observed. The turbulence decorrelation rate was found to increase as the ion ∇B drift direction was moving towards the favourable configuration, but the flow shear also increased and exceeded the turbulence decorrelation rate. These measurements demonstrate an important correlation between turbulence and turbulence-driven flow and a lowering of PLH, provide insights into the underlyingphysics behind the hidden parameters and inform a more complete physics-based model of the L-H transition power threshold. This article is part of a discussion meeting issue 'H-mode transition and pedestal studies in fusion plasmas'.
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Affiliation(s)
- Z Yan
- Department of Engineering Physics, University of Wisconsin - Madison, Madison, WI 53706, USA
| | - G R McKee
- Department of Engineering Physics, University of Wisconsin - Madison, Madison, WI 53706, USA
| | - L Schmitz
- Department of Physics and Astronomy, University of California - Los Angeles, Los Angeles, CA 90095, USA
| | - P Gohil
- General Atomics, San Diego, CA 92121, USA
| | - S Haskey
- Princeton Plasma Physics Laboratory, Princeton, NJ 08536, USA
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Dockendorff M, Schmitz L, Vesper C, Knoblich G. Understanding others' distal goals from proximal communicative actions. PLoS One 2023; 18:e0280265. [PMID: 36662700 PMCID: PMC9858010 DOI: 10.1371/journal.pone.0280265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 12/23/2022] [Indexed: 01/21/2023] Open
Abstract
Many social interactions require individuals to coordinate their actions and to inform each other about their goals. Often these goals concern an immediate (i.e., proximal) action, as when people give each other a brief handshake, but they sometimes also refer to a future (i.e. distal) action, as when football players perform a passing sequence. The present study investigates whether observers can derive information about such distal goals by relying on kinematic modulations of an actor's instrumental actions. In Experiment 1 participants were presented with animations of a box being moved at different velocities towards an apparent endpoint. The distal goal, however, was for the object to be moved past this endpoint, to one of two occluded target locations. Participants then selected the location which they considered the likely distal goal of the action. As predicted, participants were able to detect differences in movement velocity and, based on these differences, systematically mapped the movements to the two distal goal locations. Adding a distal goal led to more variation in the way participants mapped the observed movements onto different target locations. The results of Experiments 2 and 3 indicated that this cannot be explained by difficulties in perceptual discrimination. Rather, the increased variability likely reflects differences in interpreting the underlying connection between proximal communicative actions and distal goals. The present findings extend previous research on sensorimotor communication by demonstrating that communicative action modulations are not restricted to predicting proximal goals but can also be used to infer more distal goals.
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Affiliation(s)
- Martin Dockendorff
- Department of Cognitive Science, Central European University, Vienna, Austria
| | - Laura Schmitz
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Cordula Vesper
- Department of Linguistics, Cognitive Science, and Semiotics, Aarhus University, Aarhus, Denmark
- Interacting Minds Centre, Aarhus University, Aarhus, Denmark
| | - Günther Knoblich
- Department of Cognitive Science, Central European University, Vienna, Austria
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8
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Schmitz L, Reader AT. Smaller preferred interpersonal distance for joint versus parallel action. PLoS One 2023; 18:e0285202. [PMID: 37130118 PMCID: PMC10153701 DOI: 10.1371/journal.pone.0285202] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 04/18/2023] [Indexed: 05/03/2023] Open
Abstract
During social interaction, humans prefer to keep a certain distance between themselves and other individuals. This preferred 'interpersonal distance' (IPD) is known to be sensitive to social context, and in the present study we aimed to further investigate the extent to which IPD is affected by the specific type of social interaction. In particular, we focused on the contrast between joint actions, where two or more individuals coordinate their actions in space and time to achieve a shared goal, and parallel actions, where individuals act alongside each other but individually. We predicted that joint action would be associated with a smaller preferred IPD compared to parallel action. Additionally, given that this research took place in the midst of the COVID-19 pandemic, we aimed to assess whether IPD preferences are affected by individuals' concerns about infection in general, as well as COVID-19 in particular. We predicted that higher individual concerns would be associated with greater preferred IPD. To test these hypotheses, we asked participants to imagine different social scenarios (involving either joint or parallel actions alongside a stranger) and indicate, on a visual scale, their preferred IPD. The results of two experiments (n = 211, n = 212) showed that participants preferred a shorter distance when they imagined acting jointly compared to when they imagined acting in parallel. Moreover, participants who reported higher discomfort for potential pathogen contact and who were more aware of the COVID-19 context in which the study took place preferred a larger IPD in general. Our results provide further evidence that different types of social interaction shape IPD preference. We discuss potential reasons for this phenomenon and highlight remaining questions for future research.
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Affiliation(s)
- Laura Schmitz
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Institute of Sports Science, Leibniz University Hannover, Hannover, Germany
| | - Arran T Reader
- Department of Psychology, Faculty of Natural Sciences, University of Stirling, Stirling, United Kingdom
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9
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Wahn B, Schmitz L, Gerster FN, Weiss M. Offloading under cognitive load: Humans are willing to offload parts of an attentionally demanding task to an algorithm. PLoS One 2023; 18:e0286102. [PMID: 37205658 DOI: 10.1371/journal.pone.0286102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 05/08/2023] [Indexed: 05/21/2023] Open
Abstract
In the near future, humans will increasingly be required to offload tasks to artificial systems to facilitate daily as well as professional activities. Yet, research has shown that humans are often averse to offloading tasks to algorithms (so-called "algorithmic aversion"). In the present study, we asked whether this aversion is also present when humans act under high cognitive load. Participants performed an attentionally demanding task (a multiple object tracking (MOT) task), which required them to track a subset of moving targets among distractors on a computer screen. Participants first performed the MOT task alone (Solo condition) and were then given the option to offload an unlimited number of targets to a computer partner (Joint condition). We found that participants significantly offloaded some (but not all) targets to the computer partner, thereby improving their individual tracking accuracy (Experiment 1). A similar tendency for offloading was observed when participants were informed beforehand that the computer partner's tracking accuracy was flawless (Experiment 2). The present findings show that humans are willing to (partially) offload task demands to an algorithm to reduce their own cognitive load. We suggest that the cognitive load of a task is an important factor to consider when evaluating human tendencies for offloading cognition onto artificial systems.
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Affiliation(s)
- Basil Wahn
- Institute of Educational Research, Ruhr University Bochum, Bochum, Germany
- Department of Neurophysiology and Pathophysiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Laura Schmitz
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Matthias Weiss
- Nijmegen School of Management, Radboud University Nijmegen, Nijmegen, The Netherlands
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10
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Mohamed AA, Risse K, Schmitz L, Schlenter M, Chughtai A, Ivanciu M, Eble MJ. Clinical validation of a semi‐automated segmentation algorithm for target volume definition on planning
CT
and
CBCT
in stereotactic body radiotherapy (
SBRT
) for peripheral lung lesions. J Med Radiat Sci 2022; 70 Suppl 2:37-47. [PMID: 36424343 PMCID: PMC10122930 DOI: 10.1002/jmrs.637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 11/14/2022] [Indexed: 11/27/2022] Open
Abstract
INTRODUCTION Stereotactic body radiotherapy (SBRT) is an ablative method for lung malignancies. Here, the definition of the gross target volume (GTV) is subject to interobserver variation. In this study, we aimed to evaluate the interobserver variability during SBRT and its dosimetric impact, as well as to introduce a semi-automated delineation tool for both planning computer tomography (P-CT) and cone beam CT (CBCT) to help to standardise GTV delineation and adaptive volume-change registration. METHODS The interobserver variation of GTV manual contours from five physicians was analysed in 15 patients after lung SBRT on free breathing (FB) P-CT (n = 15) and CBCT (n = 90) before and after each fraction. The dosimetric impact from interobserver variations of GTV based on the original treatment plan was analysed. Next, the accuracy of an in-house easy-to-use semi-automated-segmentation algorithm for pulmonary lesions was compared with gold standard contours in FB P-CT and CBCT, as well as 4D P-CT of additional 10 patients. RESULTS The interobserver variability in manual contours resulted in violations of dose coverage of the planning target volume (PTV), which, in turn, resulted in compromised tumour control probability in contours from four physicians. The validation of the semi-automated delineation algorithm using thorax phantom led to a highly reliable accuracy in defining GTVs. Comparing the unsupervised auto-contours with the gold standard delineation revealed high equal high concordance for FB P-CT, 4D P-CT and CBCT, with a DSC of 0.83, 0.76 and 0.8, respectively. The supervised use of the semi-automated delineation tool improved its accuracy, with DSCs of 0.86, 0.86 and 0.8 for FB P-CT, 4D P-CT and CBCT, respectively. The use of the algorithm was associated with a significantly shorter working time. The semi-automated delineation tool can accurately register volume changes in CBCTs. CONCLUSION The segmentation algorithm provides a reliable, standardised and time-saving alternative for manual delineation in lung SBRT in P-CT and CBCT.
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Affiliation(s)
- Ahmed Allam Mohamed
- Department of Radiation Oncology RWTH Aachen University Aachen Germany
- Center for Integrated Oncology Aachen, Bonn, Cologne and Duesseldorf (CIO ABCD) Aachen Germany
| | - Kathrin Risse
- Department of Radiation Oncology RWTH Aachen University Aachen Germany
- Center for Integrated Oncology Aachen, Bonn, Cologne and Duesseldorf (CIO ABCD) Aachen Germany
| | - Laura Schmitz
- Department of Radiation Oncology RWTH Aachen University Aachen Germany
- Center for Integrated Oncology Aachen, Bonn, Cologne and Duesseldorf (CIO ABCD) Aachen Germany
| | - Marsha Schlenter
- Department of Radiation Oncology RWTH Aachen University Aachen Germany
- Center for Integrated Oncology Aachen, Bonn, Cologne and Duesseldorf (CIO ABCD) Aachen Germany
| | - Ahmed Chughtai
- Department of Radiation Oncology RWTH Aachen University Aachen Germany
- Center for Integrated Oncology Aachen, Bonn, Cologne and Duesseldorf (CIO ABCD) Aachen Germany
| | - Maria Ivanciu
- Department of Radiation Oncology RWTH Aachen University Aachen Germany
- Center for Integrated Oncology Aachen, Bonn, Cologne and Duesseldorf (CIO ABCD) Aachen Germany
| | - Michael J. Eble
- Department of Radiation Oncology RWTH Aachen University Aachen Germany
- Center for Integrated Oncology Aachen, Bonn, Cologne and Duesseldorf (CIO ABCD) Aachen Germany
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11
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Wahn B, Schmitz L, Kingstone A, Böckler-Raettig A. When eyes beat lips: speaker gaze affects audiovisual integration in the McGurk illusion. Psychol Res 2021; 86:1930-1943. [PMID: 34854983 PMCID: PMC9363401 DOI: 10.1007/s00426-021-01618-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 11/10/2021] [Indexed: 11/26/2022]
Abstract
Eye contact is a dynamic social signal that captures attention and plays a critical role in human communication. In particular, direct gaze often accompanies communicative acts in an ostensive function: a speaker directs her gaze towards the addressee to highlight the fact that this message is being intentionally communicated to her. The addressee, in turn, integrates the speaker’s auditory and visual speech signals (i.e., her vocal sounds and lip movements) into a unitary percept. It is an open question whether the speaker’s gaze affects how the addressee integrates the speaker’s multisensory speech signals. We investigated this question using the classic McGurk illusion, an illusory percept created by presenting mismatching auditory (vocal sounds) and visual information (speaker’s lip movements). Specifically, we manipulated whether the speaker (a) moved his eyelids up/down (i.e., open/closed his eyes) prior to speaking or did not show any eye motion, and (b) spoke with open or closed eyes. When the speaker’s eyes moved (i.e., opened or closed) before an utterance, and when the speaker spoke with closed eyes, the McGurk illusion was weakened (i.e., addressees reported significantly fewer illusory percepts). In line with previous research, this suggests that motion (opening or closing), as well as the closed state of the speaker’s eyes, captured addressees’ attention, thereby reducing the influence of the speaker’s lip movements on the addressees’ audiovisual integration process. Our findings reaffirm the power of speaker gaze to guide attention, showing that its dynamics can modulate low-level processes such as the integration of multisensory speech signals.
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Affiliation(s)
- Basil Wahn
- Department of Psychology, Leibniz Universität Hannover, Hannover, Germany.
| | - Laura Schmitz
- Institute of Sports Science, Leibniz Universität Hannover, Hannover, Germany
| | - Alan Kingstone
- Department of Psychology, University of British Columbia, Vancouver, BC, Canada
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12
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Mohamed A, Gester K, Schmitz L, Schlenter M, Chughtai A, Ivanciu M, Eble M. PO-1160 An automated segmentation algorithm for GTV delineation in SBRT of the lung, a proof of concept. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07611-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Falkenberg C, Schmitz L, Dicke K, Dervenis V, Szeimies RM, Dirschka T. Pretreatment with ablative fractional carbon dioxide laser improves treatment efficacy in a synergistic PDT protocol for actinic keratoses on the head. Photodiagnosis Photodyn Ther 2021; 34:102249. [PMID: 33711530 DOI: 10.1016/j.pdpdt.2021.102249] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/01/2021] [Accepted: 03/05/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND A recently proposed synergistic photodynamic therapy protocol (s-PDT) combining advantages of both conventional- and daylight-PDT proved to be an effective and almost painless treatment for patients with actinic keratoses (AKs). This study investigated the safety and efficacy of an additional ablative fractional CO2-laser (AFXL) pretreatment. METHODS 28 patients with AKs on the head received s-PDT using 5-aminolevulinic acid. AFXL pretreatment was conducted using the following parameters: pulse energy 8 mJ, spot density 50 spots/cm2, power 30 W, beam size 4-18 mm. Outcome was assessed by AK area and severity index (AKASI) and lesion count (LC) before and 3 months after treatment. Safety was monitored by blood pressure and pulse measurements. Intensity of pain was determined by use of a visual analog scale (VAS). RESULTS Most patients (96.4 %) showed a significant AKASI reduction (P < 0.0001) 3 months after PDT (median AKASI 1.6 [0-2.4]) compared to baseline (5.3 [4-7.75]). Median reduction rate was 75.5 % (61.3 %-100 %). Eleven patients (39.3 %) achieved AKASI 100, three (10.7 %) AKASI 75 and ten (35.7 %) AKASI 50. Blood pressure and pulse did not change significantly throughout treatment. Median VAS for pain during irradiation was 0 (0-0), 0 (0-2) and 0 (0-2) at the beginning, in the meantime and at the end, respectively. Compared to data without AFXL pretreatment, this study showed significantly higher AKASI and LC reduction rates (75.5 % vs. 63.7 % [P = 0.023] and 91.3 % vs. 80.4 % [P = 0.043]). CONCLUSIONS S-PDT with AFXL pretreatment represents a safe and almost painless treatment for patients with AKs on the head and improves treatment efficacy.
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Affiliation(s)
- C Falkenberg
- CentroDerm Clinic, Heinz-Fangman-Straße 57, Wuppertal, Germany; Faculty of Health, University Witten-Herdecke, Alfred-Herrhausen-Straße 50, Witten, Germany.
| | - L Schmitz
- Department of Dermatology, Venereology and Allergology, Ruhr-University, Bochum, Germany; Institute of Dermatopathology, MVZ Corius DermPathBonn, Bonn, Germany
| | - K Dicke
- CentroDerm Clinic, Heinz-Fangman-Straße 57, Wuppertal, Germany; Faculty of Health, University Witten-Herdecke, Alfred-Herrhausen-Straße 50, Witten, Germany
| | - V Dervenis
- CentroDerm Clinic, Heinz-Fangman-Straße 57, Wuppertal, Germany
| | - R M Szeimies
- Clinic for Dermatology and Allergology, Klinikum Vest, Recklinghausen, Germany
| | - T Dirschka
- CentroDerm Clinic, Heinz-Fangman-Straße 57, Wuppertal, Germany; Faculty of Health, University Witten-Herdecke, Alfred-Herrhausen-Straße 50, Witten, Germany
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Schmitz L, Knoblich G, Deroy O, Vesper C. Crossmodal correspondences as common ground for joint action. Acta Psychol (Amst) 2021; 212:103222. [PMID: 33302228 PMCID: PMC7755874 DOI: 10.1016/j.actpsy.2020.103222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 09/25/2020] [Accepted: 11/05/2020] [Indexed: 11/19/2022] Open
Abstract
When performing joint actions, people rely on common ground - shared information that provides the required basis for mutual understanding. Common ground can be based on people's interaction history or on knowledge and expectations people share, e.g., because they belong to the same culture or social class. Here, we suggest that people rely on yet another form of common ground, one that originates in their similarities in multisensory processing. Specifically, we focus on 'crossmodal correspondences' - nonarbitrary associations that people make between stimulus features in different sensory modalities, e.g., between stimuli in the auditory and the visual modality such as high-pitched sounds and small objects. Going beyond previous research that focused on investigating crossmodal correspondences in individuals, we propose that people can use these correspondences for communicating and coordinating with others. Initial support for our proposal comes from a communication game played in a public space (an art gallery) by pairs of visitors. We observed that pairs created nonverbal communication systems by spontaneously relying on 'crossmodal common ground'. Based on these results, we conclude that crossmodal correspondences not only occur within individuals but that they can also be actively used in joint action to facilitate the coordination between individuals.
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Affiliation(s)
- Laura Schmitz
- Department of Cognitive Science, Central European University, Budapest, Hungary; Institute for Sports Science, Leibniz Universität Hannover, Hannover, Germany
| | - Günther Knoblich
- Department of Cognitive Science, Central European University, Budapest, Hungary
| | - Ophelia Deroy
- Faculty of Philosophy, Ludwig-Maximilians-Universität, Munich, Germany; Munich Centre for Neuroscience, Ludwig-Maximilians-Universität, Munich, Germany; Institute of Philosophy, School of Advanced Study, University of London, London, UK
| | - Cordula Vesper
- Department of Cognitive Science, Central European University, Budapest, Hungary; Department of Linguistics, Cognitive Science and Semiotics, Aarhus University, Aarhus, Denmark; Interacting Minds Centre, Aarhus University, Aarhus, Denmark.
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Schmitz L, Heimann Y, Schleußner E. Additional risk of preterm birth in women of advanced age conceive after IVF/ICSI treatment – results of a Mid-German register analysis. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1717693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- L Schmitz
- Klinik für Geburtsmedizin, Universitätsklinikum Jena
| | - Y Heimann
- Klinik für Geburtsmedizin, Universitätsklinikum Jena
| | - E Schleußner
- Klinik für Geburtsmedizin, Universitätsklinikum Jena
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Ferrari N, Schmitz L, Schmidt N, Mahabir E, Van de Vondel P, Merz WM, Lehmacher W, Stock S, Brockmeier K, Ensenauer R, Fehm T, Joisten C. A lifestyle intervention during pregnancy to reduce obesity in early childhood: the study protocol of ADEBAR - a randomized controlled trial. BMC Sports Sci Med Rehabil 2020; 12:55. [PMID: 32944252 PMCID: PMC7487987 DOI: 10.1186/s13102-020-00198-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 08/19/2020] [Indexed: 11/21/2022]
Abstract
BACKGROUND The prevalence of obesity in childhood is increasing worldwide and may be affected by genetic factors and the lifestyle (exercise, nutrition behavior) of expectant parents. Lifestyle factors affect adipokines, namely leptin, resistin, and adiponectin as well as cytokines such as tumor necrosis factor alpha (TNF-α) and interleukin-6 (IL-6), which are involved in the regulation of maternal metabolic homeostasis, glucose metabolism, and the development of insulin resistance, metabolic syndrome, gestational diabetes mellitus, and hypertension. However, studies focusing on the effect of exercise or a combination of parental exercise and nutrition on the above-mentioned markers in newborns (venous cord blood) and especially on the long-term development of infants' weight gain are lacking. The study will investigate the effects of a multimodal intervention (regular exercise, diet) on parental and childhood adipocytokines (leptin, resistin, adiponectin, TNF-α, IL-6, BDNF). The effect of a lifestyle-related change in "fetal environmental conditions" on the long-term weight development of the child up to the age of two will also be assessed. METHODS/DESIGN A randomized multi-center controlled trial will be conducted in Germany, comparing supervised aerobic and resistance training 2x/week (13th to 36th weeks of gestation) and nutritional counseling (6th to 36th weeks of gestation) during pregnancy with usual care. Thirty women (pre-pregnancy Body Mass Index ≥25 kg/m2, 6th-10th week of gestation) will be included in each group. Maternal anthropometric and physical measurements as well as blood sampling will occur at the 6th-10th, 13th-14th, 21st-24th, and 36th week of gestation, at delivery as well as 8 weeks and 24 months postpartum. Neonatal measurements and umbilical blood sampling will be performed at birth. Maternal and infants' weight development will be assessed every 6 months till 24 months postpartum. A difference in childhood BMI of 1 kg/m2 at the age of two years between both groups will be assumed. A power size of 80% using a significance level of 0.05 and an effect size of 1.0 is presumed. DISCUSSION A better understanding of how lifestyle-related changes in the fetal environment might influence infants' outcome after two years of life could have a profound impact on the prevention and development of infants' obesity. TRIAL REGISTRATION The trial is registered at the German Clinical Trial Register (DRKS00007702); Registered on 10th of August 2016; retrospectively registered https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00007702.
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Affiliation(s)
- Nina Ferrari
- Cologne Centre for Prevention in Childhood and Youth/ Heart Centre Cologne, University Hospital of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
- Department for physical activity in public health, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
| | - Laura Schmitz
- Department for physical activity in public health, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
| | - Nikola Schmidt
- Department for physical activity in public health, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
| | - Esther Mahabir
- Comparative Medicine, Center for Molecular Medicine, University of Cologne, Robert-Koch-Str. 21, 50931 Cologne, Germany
- Cologne Center for Musculoskeletal Biomechanics, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 9, 50931 Cologne, Germany
| | | | - Waltraut M. Merz
- Department of Obstetrics and Prenatal Medicine, University Bonn Medical School, Sigmund-Freud-Str. 25, 53105 Bonn, Germany
| | - Walter Lehmacher
- Department of Biometry (IMSIE), Faculty of medicine, University of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Stephanie Stock
- Cologne Institute for Health Economics and Clinical Epidemiology, The University Hospital of Cologne, Gleueler Strasse 176 - 178/II, 50935 Cologne, Germany
| | - Konrad Brockmeier
- Cologne Centre for Prevention in Childhood and Youth/ Heart Centre Cologne, University Hospital of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
- Department of Paediatric Cardiology, Heart Centre Cologne, University Hospital of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Regina Ensenauer
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children’s Hospital, University of Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
- Institute of Child Nutrition, Max Rubner-Institut, Haid-und-Neu-Str. 9, 76131 Karlsruhe, Germany
| | - Tanja Fehm
- Department of Gynecology and Obstetrics, University Hospital Düsseldorf, University of Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Christine Joisten
- Cologne Centre for Prevention in Childhood and Youth/ Heart Centre Cologne, University Hospital of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
- Department for physical activity in public health, Institute of Movement and Neurosciences, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
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17
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Steeb T, Koch EAT, Wessely A, Wiest LG, Schmitz L, Berking C, Heppt MV. Chemical peelings for the treatment of actinic keratosis: a systematic review and meta-analysis. J Eur Acad Dermatol Venereol 2020; 35:641-649. [PMID: 32745330 DOI: 10.1111/jdv.16844] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/15/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Actinic keratosis (AK) is a common precancerous lesion of the skin that may be treated with chemical peelings. Despite their long-standing usage and clinical experience, no evidence-based recommendation regarding the efficacy and safety of chemical peelings for AK exists. OBJECTIVES To systematically review and synthesize the current knowledge on chemically exfoliative peelings as interventions for AK. METHODS We performed a systematic literature research in Medline, Embase and CENTRAL and hand-searched pertinent trial registers for eligible records until 5 August 2019. Results from individual studies were pooled using a random-effects model or described in a qualitative synthesis. The risk of bias was estimated with the tools provided by the Cochrane Collaboration (randomized and non-randomized trials) and the Evidence Project (single-arm trials). RESULTS Four randomized controlled trials, two non-randomized controlled trials and two single-arm studies with a total sample size of n = 170 patients were included. Trichloroacetic acid (TCA) plus Jessner's solution showed significantly lower participant complete clearance (RR 0.36, 95% CI: 0.14-0.90, two studies, I2 = 0%, P = 0.03) and lower lesion clearance (RR 0.92, 95% CI: 0.85-0.99, one study, P = 0.03) compared to 5-fluorouracil (5-FU) 5% cream. TCA as monotherapy showed lower lesion complete clearance (RR 0.75, 95% CI: 0.69-0.82, two studies, I2 = 7%, P < 0.001) and lower mean lesion reduction per patient compared to conventional photodynamic therapy (cPDT) (MD -20.48, 95% CI: -31.55 to -9.41, two studies, I2 = 43%, P = 0.0003). Pain was more pronounced in patients treated with cPDT in comparison with TCA (MD -1.71 95% CI: -3.02 to -0.41, two studies, I2 = 55%, P = 0.01). In the single-arm studies, 5-FU plus glycolic acid showed 92% lesion clearance and phenol peeling 90.6% participant complete clearance. All studies showed a high risk for bias. CONCLUSIONS Future high-quality studies and a standardization of peeling protocols are warranted to determine the value of chemical peelings in the treatment of AK.
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Affiliation(s)
- T Steeb
- Department of Dermatology, Universitätsklinikum Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - E A T Koch
- Department of Dermatology, Universitätsklinikum Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - A Wessely
- Department of Dermatology, Universitätsklinikum Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - L G Wiest
- Private Practice of Dermatology, Munich, Germany
| | - L Schmitz
- Department of Dermatology, Venereology and Allergology, Ruhr-University, Bochum, Germany.,Institute of Dermatopathology, MVZ Corius DermPathBonn, Bonn, Germany
| | - C Berking
- Department of Dermatology, Universitätsklinikum Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - M V Heppt
- Department of Dermatology, Universitätsklinikum Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
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Schmitz L, Ebinghaus A, Ivemeyer S, Domas L, Knierim U. Validity aspects of behavioural measures to assess cows’ responsiveness towards humans. Appl Anim Behav Sci 2020. [DOI: 10.1016/j.applanim.2020.105011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Schmitz L, Kanitakis J. Histological classification of cutaneous squamous cell carcinomas with different severity. J Eur Acad Dermatol Venereol 2020; 33 Suppl 8:11-15. [PMID: 31833602 DOI: 10.1111/jdv.15950] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 09/02/2019] [Indexed: 01/09/2023]
Abstract
Cutaneous squamous cell carcinoma (cSCC) is the second most common non-melanoma skin cancer. Histology represents the gold standard to confirm the diagnosis of cSCC and is mandatory to determine important findings for tumour grading, such as tumour thickness, depth of invasion, degree of differentiation and histological subtype, perineural and vascular invasion, and assessing tumour margins. In daily clinical practice, the combination of clinical and histological features should be considered when grading the tumours and treating the patients, accordingly. This article aims to provide a structured overview of the most common histological findings of in situ and invasive cSCCs, namely those relevant to their severity, and should facilitate the understanding and evaluation of these results.
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Affiliation(s)
- L Schmitz
- Department of Dermatology, Faculty of Medicine, Ruhr University Bochum, Bochum, Germany.,Department of Dermatopathology, MVZ DermPathBonn, Bonn, Germany
| | - J Kanitakis
- Department of Dermatology, Ed. Herriot Hospital, Lyon, France
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20
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Gambichler T, Steuke AK, Schmitz L, Stockfleth E, Becker JC. Altered hydroxymethylation in cutaneous squamous cell carcinoma and keratoacanthoma. Br J Dermatol 2020; 183:955-957. [PMID: 32407588 DOI: 10.1111/bjd.19219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- T Gambichler
- Skin Cancer Center, Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
| | - A-K Steuke
- Skin Cancer Center, Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
| | - L Schmitz
- Skin Cancer Center, Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
| | - E Stockfleth
- Skin Cancer Center, Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
| | - J C Becker
- Translational Skin Cancer Research, DKTK Partner Site Essen/Düsseldorf, West German Cancer Center, Dermatology, University Duisburg-Essen, Essen, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
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21
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von Dobbeler C, Schmitz L, Dicke K, Szeimies R, Dirschka T. PDT with PPIX absorption peaks adjusted wavelengths: Safety and efficacy of a new irradiation procedure for actinic keratoses on the head. Photodiagnosis Photodyn Ther 2019; 27:198-202. [DOI: 10.1016/j.pdpdt.2019.05.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 05/07/2019] [Accepted: 05/13/2019] [Indexed: 02/06/2023]
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22
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Gambichler T, Selke L, Rüddel I, Dreißigacker M, Stockfleth E, Schmitz L. Expression of indolamine-2,3-dioxygenase and cyclooxygenase-2 in different disease stages of cutaneous squamous cell carcinoma. J Eur Acad Dermatol Venereol 2019; 33:e446-e447. [PMID: 31251418 DOI: 10.1111/jdv.15763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- T Gambichler
- Department of Dermatology, Skin Cancer Center, Ruhr-University Bochum, Bochum, Germany
| | - L Selke
- Department of Dermatology, Skin Cancer Center, Ruhr-University Bochum, Bochum, Germany
| | - I Rüddel
- Department of Dermatology, Skin Cancer Center, Ruhr-University Bochum, Bochum, Germany
| | - M Dreißigacker
- Department of Dermatology, Skin Cancer Center, Ruhr-University Bochum, Bochum, Germany
| | - E Stockfleth
- Department of Dermatology, Skin Cancer Center, Ruhr-University Bochum, Bochum, Germany
| | - L Schmitz
- Department of Dermatology, Skin Cancer Center, Ruhr-University Bochum, Bochum, Germany
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Gambichler T, Salveridou K, Schmitz L, Käfferlein H, Brüning T, Stockfleth E, Sand M, Lang K. Low Drosha protein expression in cutaneous T‐cell lymphoma is associated with worse disease outcome. J Eur Acad Dermatol Venereol 2019; 33:1695-1699. [DOI: 10.1111/jdv.15652] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 04/12/2019] [Indexed: 12/17/2022]
Affiliation(s)
- T. Gambichler
- Department of Dermatology Ruhr‐University Bochum Bochum Germany
| | - K. Salveridou
- Department of Dermatology Ruhr‐University Bochum Bochum Germany
| | - L. Schmitz
- Department of Dermatology Ruhr‐University Bochum Bochum Germany
| | - H.U. Käfferlein
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurances Ruhr‐University Bochum (IPA) Bochum Germany
| | - T. Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurances Ruhr‐University Bochum (IPA) Bochum Germany
| | - E. Stockfleth
- Department of Dermatology Ruhr‐University Bochum Bochum Germany
| | - M. Sand
- Department of Dermatology Ruhr‐University Bochum Bochum Germany
| | - K. Lang
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurances Ruhr‐University Bochum (IPA) Bochum Germany
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Schmitz L, Grinblat B, Novak B, Hoeh AK, Händschke K, von Dobbeler C, Bierhoff E, Szeimies RM, Gambichler T, Torezan L, Festa-Neto C, Stockfleth E, Dirschka T. Somatic mutations in kinetochore gene KNSTRN are associated with basal proliferating actinic keratoses and cutaneous squamous cell carcinoma. J Eur Acad Dermatol Venereol 2019; 33:1535-1540. [PMID: 30972880 DOI: 10.1111/jdv.15615] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 04/01/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND Mutations in kinetochore gene KNSTRN accelerate the development of cutaneous squamous cell carcinoma (SCC) and may correlate with different histological classifications of actinic keratosis (AKs). OBJECTIVE To determine KNSTRN gene mutation frequency in healthy skin (HS), actinically damaged skin (ADS), in AKs with different histomorphological gradings and invasive SCCs. METHODS All samples were histologically evaluated. AK lesions were additionally classified according to their upwards (AK I-III) and downwards (PRO I-III) directed growth pattern. Mutation analyses of all samples were performed using the Sanger method. RESULTS With one exception, all detected mutations in KNSTRN gene showed an alanine-to-glutamate substitution at codon 40 (p.Ala40Glu). p.Ala40Glu mutation was found in 6.9% (2/29) of HS, in 16.1% (5/31) of ADS, in 18.3% (20/109) of AKs and in 30.0% (9/30) of invasive SCCs. Further stratification of AKs using the common AK classification of Röwert-Huber revealed the p.Ala40Glu mutation in 14.7% (5/43), 13.3% (4/30) and 24.4% (11/45) (AK I, II and III). In contrast, the new PRO classification showed a distribution of 3.6% (1/28) in PRO I, 21.7% (13/60) in PRO II and 28.6% (6/21) in PRO III. Mutation frequency in HS showed significant differences compared to AKs classified as PRO III and invasive SCCs (P < 0.05). In contrast, there were no statistically significant differences between HS and AKs when classified according to Röwert-Huber. CONCLUSIONS Recurrent somatic mutation p.Ala40Glu in KNSTRN gene is associated with basal proliferating AKs in accordance with invasive SCCs. This supports the impact of basal proliferative pattern in terms of progression.
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Affiliation(s)
- L Schmitz
- Department of Dermatology, Faculty of Medicine, Ruhr University Bochum, Bochum, Germany
| | - B Grinblat
- Department of Dermatology, Hospital das Clínicas, University of São Paulo, São Paulo, SP, Brazil
| | - B Novak
- Department of Animal Physiology, Ruhr-University, Bochum, Germany
| | - A-K Hoeh
- CentroDerm GmbH, Wuppertal, Germany
| | | | | | - E Bierhoff
- Heinz-Werner-Seifert-Institute of Dermatopathology, Bonn, Germany
| | - R-M Szeimies
- Department of Dermatology and Allergology, Vest Hospital, Academic Teaching Hospital University of Bochum, Recklinghausen, Germany
| | - T Gambichler
- Department of Dermatology, Faculty of Medicine, Ruhr University Bochum, Bochum, Germany
| | - L Torezan
- Department of Dermatology, Hospital das Clínicas, University of São Paulo, São Paulo, SP, Brazil
| | - C Festa-Neto
- Department of Dermatology, Hospital das Clínicas, University of São Paulo, São Paulo, SP, Brazil
| | - E Stockfleth
- Department of Dermatology, Faculty of Medicine, Ruhr University Bochum, Bochum, Germany
| | - T Dirschka
- CentroDerm GmbH, Wuppertal, Germany.,Faculty of Health, University Witten-Herdecke, Witten, Germany
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Schmitz L, Gupta G, Stücker M, Doerler M, Gambichler T, Welzel J, Szeimies RM, Bierhoff E, Stockfleth E, Dirschka T. Evaluation of two histological classifications for actinic keratoses - PRO classification scored highest inter-rater reliability. J Eur Acad Dermatol Venereol 2019; 33:1092-1097. [PMID: 30887613 DOI: 10.1111/jdv.15580] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 02/26/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Actinic keratoses (AKs) can histologically be classified by the extent of atypical keratinocytes throughout the epidermis or their pattern of basal proliferation. Currently, no data on the inter-rater reliability of both scores is available. OBJECTIVE To evaluate the inter-rater reliability of the two classification schemes; histological grade (AK I-III) and basal proliferation (PRO I-III). METHODS Histological images of 54 AKs were classified by 21 independent dermatopathologists with regard to basal proliferation (PRO I-III), histological grade (AK I-III) and assumed risk of progression into invasive carcinoma. RESULTS Overall, of the 54 AKs 16.7% (9/54) were classified as AK I, 66.7% (36/54) as AK II, and 16.7% (9/54) as AK III. With regards to basal growth pattern, 25.9% (14/54) were classified as PRO I, 42.6% (23/54) as PRO II, and 31.5% (17/54) as PRO III. We observed a highly significant inter-rater reliability for PRO-grading (P < 0.001) which was higher than for AK-grading (Kendall's W coefficient: AK = 0.488 vs. PRO = 0.793). We found substantial agreement for assumed progression risk for AKs with worsening basal proliferation (k = 0.759) compared to moderate agreement (k = 0.563) for different AK-gradings. CONCLUSIONS Histological classification of basal growth pattern (PRO) showed higher inter-rater reliability compared to the established classification of atypical keratinocytes throughout epidermal layers. Moreover, experienced dermatopathologists considered basal proliferation to be more important in terms of progression risk than upwards directed growth patterns. It should be considered to classify AKs according to their basal proliferation pattern (PRO I-III).
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Affiliation(s)
- L Schmitz
- Department of Dermatology, Venereology and Allergology, Ruhr University, Bochum, Germany
| | - G Gupta
- Department of Dermatology, University Hospital Monklands, Lanarkshire, UK.,School of Medicine, University of Glasgow, Glasgow, UK
| | - M Stücker
- Department of Dermatology, Venereology and Allergology, Ruhr University, Bochum, Germany
| | - M Doerler
- Department of Dermatology, Venereology and Allergology, Ruhr University, Bochum, Germany
| | - T Gambichler
- Department of Dermatology, Venereology and Allergology, Ruhr University, Bochum, Germany
| | - J Welzel
- Department of Dermatology and Allergology, General Hospital Augsburg, Augsburg, Germany
| | - R M Szeimies
- Department of Dermatology and Allergology, Vest Hospital, Academic Teaching Hospital University of Bochum, Recklinghausen, Germany
| | - E Bierhoff
- Heinz-Werner-Seifert-Institute of Dermatopathology, Bonn, Germany
| | - E Stockfleth
- Department of Dermatology, Venereology and Allergology, Ruhr University, Bochum, Germany
| | - T Dirschka
- CentroDerm Clinic, Wuppertal, Germany.,Faculty of Health, University Witten-Herdecke, Witten, Germany
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Sheftman D, Schmitz L, Gupta D, Thompson MC. Jet outflow and open field line measurements on the C-2W advanced beam-driven field-reversed configuration plasma experiment. Rev Sci Instrum 2018; 89:10D120. [PMID: 30399965 DOI: 10.1063/1.5037114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 06/22/2018] [Indexed: 06/08/2023]
Abstract
Accurate operation and high performance of the open field line plasma surrounding the field reversed configuration is crucial to achieving the goals of successful temperature ramp up and confinement improvement on C-2W. Knowledge and control of the open field line plasma requires extensive diagnostic efforts. A suite of diagnostics, which consists of microwave interferometry, dispersive spectroscopy, and spatial heterodyne spectroscopy, is being developed to measure electron density, ion temperature, and particle outflow velocity at various locations along the open magnetic field lines. A detailed overview of these diagnostics is presented.
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Affiliation(s)
- D Sheftman
- TAE Technologies, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688-7010, USA
| | - L Schmitz
- TAE Technologies, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688-7010, USA
| | - D Gupta
- TAE Technologies, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688-7010, USA
| | - M C Thompson
- TAE Technologies, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688-7010, USA
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Schmitz L, Deng B, Thompson M, Gota H, Lau C, Fulton DP, Lin Z, Tajima T, Binderbauer M. Combination Doppler backscattering/cross-polarization scattering diagnostic for the C-2W field-reversed configuration. Rev Sci Instrum 2018; 89:10H116. [PMID: 30399746 DOI: 10.1063/1.5038914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
A versatile combination Doppler backscattering and Cross-Polarization Scattering (CPS) diagnostic for the C-2W beam-driven field-reversed configuration is described. This system is capable of measuring density fluctuations and perpendicular magnetic field fluctuations across a wide wavenumber range (2.5 ≤ k θ ρ s ≤ 50), with typical resolution Δk θ/k θ ≤ 0.4-0.8. Four tunable frequencies (26 GHz ≤ f ≤ 60 GHz corresponding to plasma cut-off densities 0.8 × 1019 ≤ n e ≤ 4.4 × 1019 m-3) are launched via quasi-optical beam combiners/polarizers and an adjustable parabolic focusing mirror selecting the beam incidence angle. GENRAY ray tracing shows that the incident O-mode and backscattered CPS X-mode beam trajectories for C-2W plasma parameters nearly overlap, allowing simultaneous detection of ñ and B̃ r or B̃ θ from essentially the same scattering volume.
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Affiliation(s)
- L Schmitz
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - B Deng
- TAE Technologies, Inc., Foothill Ranch, California 92610, USA
| | - M Thompson
- TAE Technologies, Inc., Foothill Ranch, California 92610, USA
| | - H Gota
- TAE Technologies, Inc., Foothill Ranch, California 92610, USA
| | - C Lau
- TAE Technologies, Inc., Foothill Ranch, California 92610, USA
| | - D P Fulton
- TAE Technologies, Inc., Foothill Ranch, California 92610, USA
| | - Z Lin
- Department of Physics and Astronomy, University of California Irvine, Irvine, California 92697, USA
| | - T Tajima
- TAE Technologies, Inc., Foothill Ranch, California 92610, USA
| | - M Binderbauer
- TAE Technologies, Inc., Foothill Ranch, California 92610, USA
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Schmitz L, Gambichler T, Kost C, Gupta G, Stücker M, Stockfleth E, Dirschka T. Cutaneous squamous cell carcinomas are associated with basal proliferating actinic keratoses. Br J Dermatol 2018. [DOI: 10.1111/bjd.16536] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- L. Schmitz
- Department of Dermatology, Venereology and Allergology Ruhr‐University Gudrunstraße 56 D‐44791 Bochum Germany
| | - T. Gambichler
- Department of Dermatology, Venereology and Allergology Ruhr‐University Gudrunstraße 56 D‐44791 Bochum Germany
| | - C. Kost
- Department of Dermatology, Venereology and Allergology Ruhr‐University Gudrunstraße 56 D‐44791 Bochum Germany
| | - G. Gupta
- Department of Dermatology University Hospital Monklands Lanarkshire U.K
- School of Medicine University of Glasgow Glasgow U.K
| | - M. Stücker
- Department of Dermatology, Venereology and Allergology Ruhr‐University Gudrunstraße 56 D‐44791 Bochum Germany
| | - E. Stockfleth
- Department of Dermatology, Venereology and Allergology Ruhr‐University Gudrunstraße 56 D‐44791 Bochum Germany
| | - T. Dirschka
- CentroDerm Clinic Heinz‐Fangman‐Straße 57 Wuppertal Germany
- Faculty of Health University Witten‐Herdecke Alfred‐Herrhausen‐Straße 50 Witten Germany
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Schmitz L, Vesper C, Sebanz N, Knoblich G. When Height Carries Weight: Communicating Hidden Object Properties for Joint Action. Cogn Sci 2018; 42:2021-2059. [PMID: 29936705 PMCID: PMC6120543 DOI: 10.1111/cogs.12638] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 05/19/2019] [Accepted: 05/23/2018] [Indexed: 11/29/2022]
Abstract
In the absence of pre-established communicative conventions, people create novel communication systems to successfully coordinate their actions toward a joint goal. In this study, we address two types of such novel communication systems: sensorimotor communication, where the kinematics of instrumental actions are systematically modulated, versus symbolic communication. We ask which of the two systems co-actors preferentially create when aiming to communicate about hidden object properties such as weight. The results of three experiments consistently show that actors who knew the weight of an object transmitted this weight information to their uninformed co-actors by systematically modulating their instrumental actions, grasping objects of particular weights at particular heights. This preference for sensorimotor communication was reduced in a fourth experiment where co-actors could communicate with weight-related symbols. Our findings demonstrate that the use of sensorimotor communication extends beyond the communication of spatial locations to non-spatial, hidden object properties.
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Affiliation(s)
- Laura Schmitz
- Department of Cognitive ScienceCentral European University
| | - Cordula Vesper
- Department of Cognitive ScienceCentral European University
- School of Communication and CultureAarhus University
| | - Natalie Sebanz
- Department of Cognitive ScienceCentral European University
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Wahn B, Karlinsky A, Schmitz L, König P. Let's Move It Together: A Review of Group Benefits in Joint Object Control. Front Psychol 2018; 9:918. [PMID: 29930528 PMCID: PMC5999730 DOI: 10.3389/fpsyg.2018.00918] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 05/18/2018] [Indexed: 12/04/2022] Open
Abstract
In daily life, humans frequently engage in object-directed joint actions, be it carrying a table together or jointly pulling a rope. When two or more individuals control an object together, they may distribute control by performing complementary actions, e.g., when two people hold a table at opposite ends. Alternatively, several individuals may execute control in a redundant manner by performing the same actions, e.g., when jointly pulling a rope in the same direction. Previous research has investigated whether dyads can outperform individuals in tasks where control is either distributed or redundant. The aim of the present review is to integrate findings for these two types of joint control to determine common principles and explain differing results. In sum, we find that when control is distributed, individuals tend to outperform dyads or attain similar performance levels. For redundant control, conversely, dyads have been shown to outperform individuals. We suggest that these differences can be explained by the possibility to freely divide control: Having the option to exercise control redundantly allows co-actors to coordinate individual contributions in line with individual capabilities, enabling them to maximize the benefit of the available skills in the group. In contrast, this freedom to adopt and adapt customized coordination strategies is not available when the distribution of control is determined from the outset.
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Affiliation(s)
- Basil Wahn
- Institute of Cognitive Science, Universität Osnabrück, Osnabrück, Germany.,Department of Psychology, University of British Columbia, Vancouver, BC, Canada
| | - April Karlinsky
- School of Kinesiology, University of British Columbia, Vancouver, BC, Canada
| | - Laura Schmitz
- Department of Cognitive Science, Central European University, Budapest, Hungary.,Fakultät für Philosophie, Wissenschaftstheorie und Religionswissenschaft, Ludwig-Maximilians-Universität, Munich, Germany
| | - Peter König
- Institute of Cognitive Science, Universität Osnabrück, Osnabrück, Germany.,Institut für Neurophysiologie und Pathophysiologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
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Gambichler T, Mahjurian-Namari M, Reininghaus L, Schmitz L, Skrygan M, Schulze HJ, Schaller J, Girolomoni G. Lysyl oxidase-like-2 mutations and reduced mRNA and protein expression in mid-dermal elastolysis. Clin Exp Dermatol 2018; 44:47-51. [PMID: 29845638 DOI: 10.1111/ced.13652] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2017] [Indexed: 01/26/2023]
Abstract
BACKGROUND Mid-dermal elastolysis (MDE) is a rare skin condition, characterized by selective loss of elastic fibres in the mid dermis. The pathogenesis of MDE is still unclear. AIM To investigate expression of lysyl oxidase-like 2 (LOXL2) in a reasonable sample of patients with MDE and to search for mutations in LOXL2. METHODS We investigated archived lesional tissue of 13 patients with MDE and skin tissue samples of 10 sex- and age-matched healthy controls (HCs). Gene and protein expression of LOXL2 was investigated using real-time reverse-transcription PCR and immunohistochemistry. Mutation analysis was performed using the Sanger method. RESULTS We observed decreased LOXL2 mRNA expression in lesional skin of patients with MDE (0.48 ± 0.16) compared with healthy skin of the same patients (1.5 ± 0.51) and normal skin of HCs (1.9 ± 0.13). Compared with healthy patient skin (epidermis 2.38 ± 1.6, dermis 1.2 ± 1), LOXL2 protein expression in lesional patient skin (epidermis 1.1 ± 0.7, dermis 0.3 ± 0.45) was significantly decreased (P < 0.04 and P = 0.02, respectively). Mutation analysis of the entire LOXL2 gene could be performed for five patients, all of whom were found to have at least one mutation in the LOXL2 gene. Three of these had a mutation in the promoter region (c.967 G>C, c.1022 C>T, and c.1025 G>A, respectively), and one of them also had a mutation in the splice region of intron 11/exon 12 (IVS11-1 G>A). Of the remaining two patients, one had a mutation in exon 3 (T1391), and the other had a mutation in exon 11 (C663Y). CONCLUSIONS Our present data suggest that decreased elastin renewal due to LOXL2 mutations and consecutive reduced LOXL2 expression contribute to the pathogenesis of MDE.
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Affiliation(s)
- T Gambichler
- Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
| | | | - L Reininghaus
- Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
| | - L Schmitz
- Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
| | - M Skrygan
- Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
| | - H-J Schulze
- Fachklinik Hornheide, Department of Dermatology and Dermato-Histo-Pathology, Münster, Germany
| | - J Schaller
- Dermatopathology Duisburg, Duisburg, Germany
| | - G Girolomoni
- Section of Dermatology and Venereology, Department of Medicine, University of Verona, Verona, Italy
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Gambichler T, Schmitz L. Response: field cancerization and koebnerized skin tumours. J Eur Acad Dermatol Venereol 2018; 33:e4-e5. [PMID: 29797674 DOI: 10.1111/jdv.15086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- T Gambichler
- Skin Cancer Center, Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
| | - L Schmitz
- Skin Cancer Center, Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
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Schmitz L, Stockfleth E. Actinic keratoses seldom occur alone. J Eur Acad Dermatol Venereol 2018; 32:513. [DOI: 10.1111/jdv.14908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- L. Schmitz
- Department of Dermatology, Venereology and Allergology; Ruhr-University; Bochum Germany
| | - E. Stockfleth
- Department of Dermatology, Venereology and Allergology; Ruhr-University; Bochum Germany
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34
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Gambichler T, Rüddel I, Hessam S, Bechara F, Stockfleth E, Schmitz L. Altered epigenetic pathways and cell cycle dysregulation in healthy appearing skin of patients with koebnerized squamous cell carcinomas following skin surgery. J Eur Acad Dermatol Venereol 2018; 32:1485-1491. [DOI: 10.1111/jdv.14887] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 01/22/2018] [Indexed: 01/12/2023]
Affiliation(s)
- T. Gambichler
- Department of Dermatology; Skin Cancer Center; Ruhr-University Bochum; Bochum Germany
| | - I. Rüddel
- Department of Dermatology; Skin Cancer Center; Ruhr-University Bochum; Bochum Germany
| | - S. Hessam
- Department of Dermatology; Skin Cancer Center; Ruhr-University Bochum; Bochum Germany
| | - F.G. Bechara
- Department of Dermatology; Skin Cancer Center; Ruhr-University Bochum; Bochum Germany
| | - E. Stockfleth
- Department of Dermatology; Skin Cancer Center; Ruhr-University Bochum; Bochum Germany
| | - L. Schmitz
- Department of Dermatology; Skin Cancer Center; Ruhr-University Bochum; Bochum Germany
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35
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Schmitz L, Hessam S, Scholl L, Reitenbach S, Segert MH, Gambichler T, Stockfleth E, Bechara FG. Histological findings after argon plasma coagulation: an ex-vivo study revealing a possible role in superficial ablative treatment of the skin. Arch Dermatol Res 2018; 310:157-163. [PMID: 29350263 DOI: 10.1007/s00403-018-1810-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 01/09/2018] [Accepted: 01/12/2018] [Indexed: 10/18/2022]
Abstract
Argon plasma coagulation (APC) is an electrosurgical technique which can be used to ablate skin lesions with limited invasion depth into dermal tissue. Hence, APC might be well suited for the removal of epithelial tumours. However, there are no data on the effects of APC on human skin tissue. Thus, the aim of this study was to determine the extent of epidermal and dermal damage after APC of human skin. We performed APC ex-vivo on 91 freshly resected human skin samples, which were obtained after reconstructive surgical closures in actinically damaged areas. Tissue effects were evaluated histologically and compared across different power settings. Using 15, 30, and 45 W, median (interquartile range; IQR) coagulation depths were 110.0 µm (91.7-130.0), 113.3 µm (85.8-135.0), and 130.0 µm (100.0-153.3.0), respectively. Median (IQR) thickness of necrosis zone was 30.0 µm (23.3-40.0) at 15 W, 26.7 µm (20.0-41.6) at 30 W, and 43.3 µm (30.8-57.5) at 45 W. The Kruskal-Wallis test showed significant differences between 15 and 30 W versus 45 W for coagulation depth (P = 0.0414), necrosis zone (P = 0.0017), and necrosis according to overlaying epidermal thickness (P = 0.0467). In summary, APC is a simple and controllable electrosurgical technique to remove epidermal tissue with limited penetration to the dermis. Thus, APC is particularly suited for the ablation of epithelial skin lesions and, therefore, may serve as possible treatment approach for intraepithelial neoplasms such as actinic keratosis.
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Affiliation(s)
- L Schmitz
- Department of Dermatology, Venereology and Allergology, Dermatologic Surgery Unit, Ruhr-University Bochum, Gudrunstr. 56, 44791, Bochum, Germany
| | - S Hessam
- Department of Dermatology, Venereology and Allergology, Dermatologic Surgery Unit, Ruhr-University Bochum, Gudrunstr. 56, 44791, Bochum, Germany
| | - L Scholl
- Department of Dermatology, Venereology and Allergology, Dermatologic Surgery Unit, Ruhr-University Bochum, Gudrunstr. 56, 44791, Bochum, Germany
| | - S Reitenbach
- Department of Dermatology, Venereology and Allergology, Dermatologic Surgery Unit, Ruhr-University Bochum, Gudrunstr. 56, 44791, Bochum, Germany
| | - M H Segert
- Department of Dermatology, Venereology and Allergology, Dermatologic Surgery Unit, Ruhr-University Bochum, Gudrunstr. 56, 44791, Bochum, Germany
| | - T Gambichler
- Department of Dermatology, Venereology and Allergology, Ruhr-University Bochum, Gudrunstr. 56, 44791, Bochum, Germany
| | - E Stockfleth
- Department of Dermatology, Venereology and Allergology, Ruhr-University Bochum, Gudrunstr. 56, 44791, Bochum, Germany
| | - F G Bechara
- Department of Dermatology, Venereology and Allergology, Dermatologic Surgery Unit, Ruhr-University Bochum, Gudrunstr. 56, 44791, Bochum, Germany.
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Schmitz L, Gambichler T, Gupta G, Stücker M, Dirschka T. Actinic keratosis area and severity index (AKASI) is associated with the incidence of squamous cell carcinoma. J Eur Acad Dermatol Venereol 2017; 32:752-756. [DOI: 10.1111/jdv.14682] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 10/17/2017] [Indexed: 12/14/2022]
Affiliation(s)
- L. Schmitz
- Department of Dermatology, Venereology and Allergology; Ruhr-University; Bochum Germany
| | - T. Gambichler
- Department of Dermatology, Venereology and Allergology; Ruhr-University; Bochum Germany
| | - G. Gupta
- Department of Dermatology; Monklands Hospital; Lanarkshire UK
- University of Glasgow; Glasgow UK
| | - M. Stücker
- Department of Dermatology, Venereology and Allergology; Ruhr-University; Bochum Germany
| | - T. Dirschka
- CentroDerm Clinic; Wuppertal Germany
- Faculty of Health; University Witten-Herdecke; Witten Germany
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Vesper C, Schmitz L, Knoblich G. Modulating action duration to establish nonconventional communication. ACTA ACUST UNITED AC 2017; 146:1722-1737. [DOI: 10.1037/xge0000379] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Gambichler T, Brown V, Steuke AK, Schmitz L, Stockfleth E, Susok L. Baseline laboratory parameters predicting clinical outcome in melanoma patients treated with ipilimumab: a single-centre analysis. J Eur Acad Dermatol Venereol 2017; 32:972-977. [DOI: 10.1111/jdv.14629] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 09/22/2017] [Indexed: 12/19/2022]
Affiliation(s)
- T. Gambichler
- Skin Cancer Center of the Department of Dermatology; Ruhr-University Bochum; Bochum Germany
| | - V. Brown
- Skin Cancer Center of the Department of Dermatology; Ruhr-University Bochum; Bochum Germany
| | - A.-K. Steuke
- Skin Cancer Center of the Department of Dermatology; Ruhr-University Bochum; Bochum Germany
| | - L. Schmitz
- Skin Cancer Center of the Department of Dermatology; Ruhr-University Bochum; Bochum Germany
| | - E. Stockfleth
- Skin Cancer Center of the Department of Dermatology; Ruhr-University Bochum; Bochum Germany
| | - L. Susok
- Skin Cancer Center of the Department of Dermatology; Ruhr-University Bochum; Bochum Germany
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Schmitz L, Gambichler T, Gupta G, Stücker M, Stockfleth E, Szeimies R, Dirschka T. Actinic keratoses show variable histological basal growth patterns - a proposed classification adjustment. J Eur Acad Dermatol Venereol 2017; 32:745-751. [DOI: 10.1111/jdv.14512] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 07/21/2017] [Indexed: 11/30/2022]
Affiliation(s)
- L. Schmitz
- Department of Dermatology, Venereology and Allergology; Ruhr-University; Bochum Germany
| | - T. Gambichler
- Department of Dermatology, Venereology and Allergology; Ruhr-University; Bochum Germany
| | - G. Gupta
- Department of Dermatology; Monklands Hospital; Lanarkshire UK
- University of Glasgow; Glasgow UK
| | - M. Stücker
- Department of Dermatology, Venereology and Allergology; Ruhr-University; Bochum Germany
| | - E. Stockfleth
- Department of Dermatology, Venereology and Allergology; Ruhr-University; Bochum Germany
| | - R.M. Szeimies
- Department of Dermatology and Allergology; Vest Hospital; Academic Teaching Hospital University of Bochum; Recklinghausen Germany
| | - T. Dirschka
- CentroDerm Clinic; Wuppertal Germany
- Faculty of Health; University Witten-Herdecke; Witten Germany
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Schmitz L, Vesper C, Sebanz N, Knoblich G. Co-representation of others’ task constraints in joint action. ACTA ACUST UNITED AC 2017; 43:1480-1493. [DOI: 10.1037/xhp0000403] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Dirschka T, Pellacani G, Micali G, Malvehy J, Stratigos AJ, Casari A, Schmitz L, Gupta G. A proposed scoring system for assessing the severity of actinic keratosis on the head: actinic keratosis area and severity index. J Eur Acad Dermatol Venereol 2017; 31:1295-1302. [PMID: 28401585 DOI: 10.1111/jdv.14267] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 02/16/2017] [Indexed: 12/27/2022]
Abstract
BACKGROUND Actinic keratosis (AK) severity is currently evaluated by subjective assessment of patients. OBJECTIVES To develop and perform an initial pilot validation of a new easy-to-use quantitative tool for assessing AK severity on the head. METHODS The actinic keratosis area and severity index (AKASI) for the head was developed based on a review of other severity scoring systems in dermatology, in particular the psoriasis area and severity index (PASI). Initial validation was performed by 13 physicians assessing AK severity in 18 AK patients and two controls using a physician global assessment (PGA) and AKASI. To determine an AKASI score, the head was divided into four regions (scalp, forehead, left/right cheek ear, chin and nose). In each region, the percentage of the area affected by AKs was estimated, and the severities of three clinical signs of AK were assessed: distribution, erythema and thickness. RESULTS There was a strong correlation between AKASI and PGA scores (Pearson correlation coefficient: 0.86). AKASI was able to discriminate between different PGA categories: mean (SD) AKASI increased from 2.88 (1.18) for 'light' to 5.33 (1.48) for 'moderate', 8.28 (1.89) for 'severe', and 8.73 (3.03) for 'very severe' PGA classification. The coefficient of variation for AKASI scores was low and relatively constant across all PGA categories. CONCLUSIONS Actinic keratosis area and severity index is proposed as a new quantitative tool for assessing AK severity on the head. It may be useful in the future evaluation of new AK treatments in clinical studies and the management of AK in daily practice.
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Affiliation(s)
- T Dirschka
- Centroderm Clinic, Wuppertal, Germany.,Faculty of Health, University Witten-Herdecke, Witten, Germany
| | - G Pellacani
- Department of Dermatology, University of Modena and Reggio Emilia, Modena, Italy
| | - G Micali
- Dermatology Clinic, University of Catania, Catania, Italy
| | - J Malvehy
- Melanoma Unit, Dermatology Department, Hospital Clínic de Barcelona, IDIBAPS, Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Valencia, Spain
| | - A J Stratigos
- First Department of Dermatology, Andreas Sygros Hospital, University of Athens Medical School, Athens, Greece
| | - A Casari
- Department of Dermatology, University of Modena and Reggio Emilia, Modena, Italy
| | - L Schmitz
- Centroderm Clinic, Wuppertal, Germany.,Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
| | - G Gupta
- Department of Dermatology, Monklands Hospital, Lanarkshire, UK.,University of Glasgow, Glasgow, UK
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Gota H, Tuszewski M, Trask E, Garate E, Binderbauer MW, Tajima T, Schmitz L, Deng BH, Guo HY, Aefsky S, Allfrey I, Barnes D, Bolte N, Bui DQ, Ceccherini F, Clary R, Conroy KD, Cordero M, Dettrick SA, Douglass JD, Feng P, Granstedt E, Gupta D, Gupta S, Hooper C, Kinley JS, Knapp K, Korepanov S, Longman A, Magee R, Mendoza R, Mok Y, Necas A, Primavera S, Putvinski S, Onofri M, Osin D, Rath N, Roche T, Romero J, Rostoker N, Schroeder JH, Sevier L, Sibley A, Smirnov A, Song Y, Steinhauer LC, Thompson MC, Valentine T, Van Drie AD, Walters JK, Waggoner W, Yang X, Yushmanov P, Zhai K. Improved Confinement of C-2 Field-Reversed Configuration Plasmas. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-871] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Gota
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - M. Tuszewski
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - E. Trask
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - E. Garate
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - M. W. Binderbauer
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - T. Tajima
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - L. Schmitz
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
- University of California, Los Angeles, Department of Physics and Astronomy Los Angeles, California 90095
| | - B. H. Deng
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - H. Y. Guo
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - S. Aefsky
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - I. Allfrey
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - D. Barnes
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - N. Bolte
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - D. Q. Bui
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - F. Ceccherini
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - R. Clary
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - K. D. Conroy
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - M. Cordero
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - S. A. Dettrick
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - J. D. Douglass
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - P. Feng
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - E. Granstedt
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - D. Gupta
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - S. Gupta
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - C. Hooper
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - J. S. Kinley
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - K. Knapp
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - S. Korepanov
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - A. Longman
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - R. Magee
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - R. Mendoza
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - Y. Mok
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - A. Necas
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - S. Primavera
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - S. Putvinski
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - M. Onofri
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - D. Osin
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - N. Rath
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - T. Roche
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - J. Romero
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - N. Rostoker
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - J. H. Schroeder
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - L. Sevier
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - A. Sibley
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - A. Smirnov
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - Y. Song
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - L. C. Steinhauer
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - M. C. Thompson
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - T. Valentine
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - A. D. Van Drie
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - J. K. Walters
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - W. Waggoner
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - X. Yang
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - P. Yushmanov
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
| | - K. Zhai
- Tri Alpha Energy Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688
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Vesper C, Abramova E, Bütepage J, Ciardo F, Crossey B, Effenberg A, Hristova D, Karlinsky A, McEllin L, Nijssen SRR, Schmitz L, Wahn B. Joint Action: Mental Representations, Shared Information and General Mechanisms for Coordinating with Others. Front Psychol 2017; 7:2039. [PMID: 28101077 PMCID: PMC5209366 DOI: 10.3389/fpsyg.2016.02039] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 12/15/2016] [Indexed: 11/18/2022] Open
Abstract
In joint action, multiple people coordinate their actions to perform a task together. This often requires precise temporal and spatial coordination. How do co-actors achieve this? How do they coordinate their actions toward a shared task goal? Here, we provide an overview of the mental representations involved in joint action, discuss how co-actors share sensorimotor information and what general mechanisms support coordination with others. By deliberately extending the review to aspects such as the cultural context in which a joint action takes place, we pay tribute to the complex and variable nature of this social phenomenon.
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Affiliation(s)
- Cordula Vesper
- Department of Cognitive Science, Central European University (CEU) Budapest, Hungary
| | - Ekaterina Abramova
- Faculty of Philosophy, Theology and Religious Studies and Donders Center for Cognition, Radboud University Nijmegen Nijmegen, Netherlands
| | - Judith Bütepage
- School of Computer Science and Communication, KTH Royal Institute of Technology Stockholm, Sweden
| | - Francesca Ciardo
- Department of Communication and Economics, University of Modena and Reggio Emilia (UNIMORE) Reggio Emilia, Italy
| | | | - Alfred Effenberg
- Institute of Sports Science, Leibniz University of Hannover Hannover, Germany
| | | | - April Karlinsky
- School of Kinesiology, University of British Columbia (UBC) Vancouver, BC, Canada
| | - Luke McEllin
- Department of Cognitive Science, Central European University (CEU) Budapest, Hungary
| | - Sari R R Nijssen
- Behavioural Science Institute, Radboud University Nijmegen Nijmegen, Netherlands
| | - Laura Schmitz
- Department of Cognitive Science, Central European University (CEU) Budapest, Hungary
| | - Basil Wahn
- Institute of Cognitive Science, University of Osnabrück Osnabrück, Germany
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44
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Price SA, Schmitz L. A promising future for integrative biodiversity research: an increased role of scale-dependency and functional biology. Philos Trans R Soc Lond B Biol Sci 2016; 371:20150228. [PMID: 26977068 DOI: 10.1098/rstb.2015.0228] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Studies into the complex interaction between an organism and changes to its biotic and abiotic environment are fundamental to understanding what regulates biodiversity. These investigations occur at many phylogenetic, temporal and spatial scales and within a variety of biological and geological disciplines but often in relative isolation. This issue focuses on what can be achieved when ecological mechanisms are integrated into analyses of deep-time biodiversity patterns through the union of fossil and extant data and methods. We expand upon this perspective to argue that, given its direct relevance to the current biodiversity crisis, greater integration is needed across biodiversity research. We focus on the need to understand scaling effects, how lower-level ecological and evolutionary processes scale up and vice versa, and the importance of incorporating functional biology. Placing function at the core of biodiversity research is fundamental, as it establishes how an organism interacts with its abiotic and biotic environment and it is functional diversity that ultimately determines important ecosystem processes. To achieve full integration, concerted and ongoing efforts are needed to build a united and interactive community of biodiversity researchers, with education and interdisciplinary training at its heart.
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Affiliation(s)
- S A Price
- Department of Evolution & Ecology, University of California Davis, 1 Shields Avenue, Davis, CA 95616, USA
| | - L Schmitz
- W.M. Keck Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, 925 North Mills Avenue, Claremont, CA 91711, USA
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45
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Vesper C, Schmitz L, Safra L, Sebanz N, Knoblich G. The role of shared visual information for joint action coordination. Cognition 2016; 153:118-23. [PMID: 27183398 PMCID: PMC4918098 DOI: 10.1016/j.cognition.2016.05.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 05/01/2016] [Accepted: 05/02/2016] [Indexed: 11/25/2022]
Abstract
Previous research has identified a number of coordination processes that enable people to perform joint actions. But what determines which coordination processes joint action partners rely on in a given situation? The present study tested whether varying the shared visual information available to co-actors can trigger a shift in coordination processes. Pairs of participants performed a movement task that required them to synchronously arrive at a target from separate starting locations. When participants in a pair received only auditory feedback about the time their partner reached the target they held their movement duration constant to facilitate coordination. When they received additional visual information about each other's movements they switched to a fundamentally different coordination process, exaggerating the curvature of their movements to communicate their arrival time. These findings indicate that the availability of shared perceptual information is a major factor in determining how individuals coordinate their actions to obtain joint outcomes.
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Affiliation(s)
- Cordula Vesper
- Department of Cognitive Science, Central European University, Oktober 6 utca 7, 1051 Budapest, Hungary.
| | - Laura Schmitz
- Department of Cognitive Science, Central European University, Oktober 6 utca 7, 1051 Budapest, Hungary
| | - Lou Safra
- Ecole Normale Supérieure, PSL Research University, Institut d'Etudes Cognitives, Inserm, U960, Laboratoire de Neurosciences Cognitives (LNC), F-75005 Paris, France
| | - Natalie Sebanz
- Department of Cognitive Science, Central European University, Oktober 6 utca 7, 1051 Budapest, Hungary
| | - Günther Knoblich
- Department of Cognitive Science, Central European University, Oktober 6 utca 7, 1051 Budapest, Hungary
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46
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Chen Z, Veling H, Tombrock M, Verpaalen I, Schmitz L, Dijksterhuis A, Holland R. Changing food choice through cued approach: Impulsive or deliberative response? Appetite 2016. [DOI: 10.1016/j.appet.2016.02.101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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47
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Schmitz L, Kahl P, Majores M, Bierhoff E, Stockfleth E, Dirschka T. Actinic keratosis: correlation between clinical and histological classification systems. J Eur Acad Dermatol Venereol 2016; 30:1303-7. [PMID: 26955898 DOI: 10.1111/jdv.13626] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Accepted: 01/18/2016] [Indexed: 12/01/2022]
Abstract
BACKGROUND There are several clinical and histological classification systems for grading actinic keratosis (AK) lesions. The Olsen clinical classification scheme grades AK lesions according to their thickness and degree of hyperkeratosis (grades 1-3). The Roewert-Huber histological classification system grades AK lesions based on the extent of epidermal atypical keratinocytes (AK I-III). OBJECTIVE The aim of this study was to determine whether there is a correlation between these clinical and histological AK classification schemes. METHODS One AK lesion from patients in three pivotal clinical studies and routine practice was assessed clinically and histologically. A match in grading was defined as Olsen grade 1 being classified histologically as AK I, Olsen grade 2 as AK II and Olsen grade 3 as AK III. RESULTS Of the 892 lesions included, 29.0% were classified as Olsen grade 1, 59.6% as Olsen grade 2 and 11.3% as Olsen grade 3; 19.2% were histologically classified as AK I, 69.6% as AK II and 11.2% as AK III. Only 480 lesions (53.8%) had a matching clinical and histological classification. Of these matches, most were 'Olsen grade 2 = AK II' (83.1%). The Spearman's rank correlation coefficient for clinical and histological classification was r = 0.0499 (P = 0.137). CONCLUSIONS Clinical classification of AK lesions using the system of Olsen does not accurately match histological classification of the same lesions using the system of Roewert-Huber. Consequently, it is not possible to draw conclusions about the histology of AK lesions from their clinical appearance. This finding reinforces the need to treat all AK lesions as well as field cancerization.
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Affiliation(s)
- L Schmitz
- Department of Dermatology, Ruhr-University, Bochum, Germany.,CentroDerm GmbH, Wuppertal, Germany
| | - P Kahl
- Heinz-Werner-Seifert-Institute of Dermatopathology, Bonn, Germany
| | - M Majores
- Heinz-Werner-Seifert-Institute of Dermatopathology, Bonn, Germany
| | - E Bierhoff
- Heinz-Werner-Seifert-Institute of Dermatopathology, Bonn, Germany
| | - E Stockfleth
- Department of Dermatology, Ruhr-University, Bochum, Germany
| | - T Dirschka
- CentroDerm GmbH, Wuppertal, Germany.,Faculty of Health, University Witten-Herdecke, Witten, Germany
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48
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Abstract
Nocturnality is widespread among extant mammals and often considered the ancestral behavioural pattern for all mammals. However, mammals are nested within a larger clade, Synapsida, and non-mammalian synapsids comprise a rich phylogenetic, morphological and ecological diversity. Even though non-mammalian synapsids potentially could elucidate the early evolution of diel activity patterns and enrich the understanding of synapsid palaeobiology, data on their diel activity are currently unavailable. Using scleral ring and orbit dimensions, we demonstrate that nocturnal activity was not an innovation unique to mammals but a character that appeared much earlier in synapsid history, possibly several times independently. The 24 Carboniferous to Jurassic non-mammalian synapsid species in our sample featured eye morphologies consistent with all major diel activity patterns, with examples of nocturnality as old as the Late Carboniferous (ca 300 Ma). Carnivores such as Sphenacodon ferox and Dimetrodon milleri, but also the herbivorous cynodont Tritylodon longaevus were likely nocturnal, whereas most of the anomodont herbivores are reconstructed as diurnal. Recognizing the complexity of diel activity patterns in non-mammalian synapsids is an important step towards a more nuanced picture of the evolutionary history of behaviour in the synapsid clade.
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Affiliation(s)
- K D Angielczyk
- Integrative Research Center, Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, IL 60605, USA
| | - L Schmitz
- W. M. Keck Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, 925 North Mills Avenue, Claremont, CA 91711, USA
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49
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Abstract
The heterochromatin protein 1 (HP1) gene family includes a set of paralogs in higher eukaryotes that serve fundamental roles in heterochromatin structure and maintenance, and other chromatin-related functions. At least 10 full and 16 partial HP1 genes exist among Drosophila species, with multiple gene gains, losses, and sub-functionalizations within this insect group. An important question is whether this diverse set of HP1 genes and their dynamic evolution represent the standard rule in eukaryotic groups. Here we have begun to address this question by bio-informatically identifying the HP1 family genes in representative species of the insect order Hymenoptera, which includes all ants, bees, wasps, and sawflies. Compared to Drosophila species, Hymenopterans have a much simpler set of HP1 genes, including one full and two partial HP1s. All 3 genes appear to have been present in the common ancestor of the Hymenopterans and they derive from a Drosophila HP1B-like gene. In ants, a partial HP1 gene containing only a chromoshadow domain harbors amino acid changes at highly conserved sites within the PxVxL recognition region, suggesting that this gene has undergone sub-functionalization. In the jewel wasp Nasonia vitripennis, the full HP1 and partial chromoshadow-only HP1 are expressed in both germ line and somatic tissues. However, the partial chromodomain-only HP1 is expressed exclusively in the ovary and testis, suggesting that it may have a specialized chromatin role during gametogenesis. Our findings demonstrate that the HP1 gene family is much simpler and evolutionarily less dynamic within the Hymenopterans compared to the much younger Drosophila group, a pattern that may reflect major differences in the range of chromatin-related functions present in these and perhaps other insect groups.
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Affiliation(s)
- C Fang
- W. M. Keck Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA 91711, USA.,W. M. Keck Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA 91711, USA
| | - L Schmitz
- W. M. Keck Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA 91711, USA.,W. M. Keck Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA 91711, USA
| | - P M Ferree
- W. M. Keck Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA 91711, USA.,W. M. Keck Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA 91711, USA
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50
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Gambichler T, Pätzholz J, Schmitz L, Lahner N, Kreuter A. FOXP3+ and CD39+ regulatory T cells in subtypes of cutaneous lupus erythematosus. J Eur Acad Dermatol Venereol 2015; 29:1972-7. [DOI: 10.1111/jdv.13123] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 03/02/2015] [Indexed: 11/28/2022]
Affiliation(s)
- T. Gambichler
- Department of Dermatology; Ruhr-University Bochum; Bochum Germany
| | - J. Pätzholz
- Department of Dermatology; Ruhr-University Bochum; Bochum Germany
| | - L. Schmitz
- Department of Dermatology; Ruhr-University Bochum; Bochum Germany
| | - N. Lahner
- Department of Dermatology; Ruhr-University Bochum; Bochum Germany
| | - A. Kreuter
- Department of Dermatology; Venereology; and Allergology; HELIOS St. Elisabeth Hospital; Oberhausen Germany
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