17 results on '"Krueger TH"'
Search Results
2. C-Fibre stimulation and recording of abdominal, autonomic nerves
- Author
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Somerlik-Fuchs Karin H., Wilhelm Peter, Rolinger Jens, Kirschniak Andreas, and Krueger Thilo B.
- Subjects
Medicine - Published
- 2022
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3. ANALOG-1 ISS – The first part of an analogue mission to guide ESA’s robotic moon exploration efforts
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Wormnes Kjetil, Carey William, Krueger Thomas, Cencetti Leonardo, Exter Emiel den, Ennis Stephen, Ferreira Edmundo, Fortunato Antonio, Gerdes Levin, Hann Lukas, Lombardi Chiara, Luzzi Erica, Martin Sebastian, Massironi Matteo, Payler Samuel, Pereira Aaron, Rossi Angelo Pio, Pozzobon Riccardo, Sauro Francesco, Schoonejans Philippe, van der Hulst Frank, and Grenouilleau Jessica
- Subjects
robotics ,teleoperation ,haptics ,geology ,lunar ,moon ,Astronomy ,QB1-991 - Abstract
The European Space Agency’s ANALOG-1 experiment is the culmination of 12 distinct METERON experiments carried out since 2011. These all address aspects of teleoperating a robotic asset from an orbital platform, i.e., technical implementation, user interfaces, autonomy and operations. The ANALOG-1 technology demonstration and operations concept experiment is based upon the surface mission scenario segment of the notional EL3 sample return mission. This segment focuses on the control of a lunar surface robotic asset from the Earth and from the Lunar Gateway. The experiment is taking place in two parts, with the first successfully completed from the ISS in November 2019. It assessed the effectiveness of a state-of-the-art robotic control interface to control a complex mobile robot from orbit, as well as evaluating the scientific interactions, during robotic-assisted geology exploration, between crew in orbit and scientists on the ground. Luca Parmitano operated the robot while he was on the ISS. For this experiment, a complex control station had been installed on the ISS. The experiment demonstrated the advantage of having an immersive control station and high level of robotic dexterity, with Luca finishing all his assigned and secondary geology targets ahead of time.
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- 2022
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4. Berechnung eines rotationssymmetrischen, gewickelten, isotensoidischen Druckbehaelters aus Faserverbundwerkstoff nach der Membrantheorie sowie der Methode der Finiten Elemente
- Author
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Krueger, Th.
- Published
- 1997
5. Synchronized presentation of a language task to the electrical stimulation of cortical regions during speech mapping in an awake surgery
- Author
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Hansmeyer Laura and Krueger Thilo B.
- Subjects
intraoperative speech mapping ,direct cortical electrical stimulation ,Medicine - Abstract
Intraoperative speech mapping is performed to preserve language function during tumour resections that involve eloquent cortical areas. For this technique the synchronization of the picture presentation to the patient with the electrical stimulation of the cortex is of major importance. During the operative routine images are manually presented by a psychologist or neurologist to the patient and have to be coordinated with the neurosurgeon stimulating the cortex by a neurostimulator, operated by an engineer. To increase the efficiency of this procedure and to minimize the time needed to localize functional cortical areas, images should appear automatically with electrical stimulation. To achieve this synchronization, the potential combination of an existing neurostimulator with commercially available software for image display was studied. A trigger signal was created to induce the presentation of a series of line drawings showing different objects. The software to control the neurostimulator and the software for image displaying were installed on two different computers. A cable was developed to transfer the trigger signal from the neurostimulator to the computer used for picture presentation. It was shown that it is possible to induce the image display via the neurostimulator using square-wave pulses of 5 V and a width of 10 ms. Thus, we present a system that enables the automated picture presentation synchronized to the electrical stimulation of cortical regions.
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- 2018
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6. Best practice: surgeon driven application in pelvic operations
- Author
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Krueger Thilo B., Wegner Celine, Somerlik-Fuchs Karin H., Hoffmann Klaus-Peter, and Mattmueller Rudi
- Subjects
electromyography ,operating room ,pelvic intraoperative neuromonitoring ,pressure sensing ,smooth muscle ,surgeon ,Medicine - Abstract
In applied biomedical engineering and medical industry the transfer of established technology towards customers’ needs is essential for successful development and therefore business opportunities. In chronological order, we can show the transfer of scientific results of neurophysiological research into an existing neuromonitoring system and product which can be used by non-experts in medical technology in the operating room environment. All neurophysiology functions were realized in an intuitive graphical user interface. To stimulate the autonomous nerves, a specialized parameter paradigm was used, different from motor nerve stimulation. In the background, a complex signal processing algorithm recorded smooth muscle and bladder manometry data in synchronized time and automatically detected neurophysiological signals. The acquired data was then presented in real-time. With this effort a complex scientific task could be simplified to a Yes/No statement to the end-user. Beside all the reduction of complexity, the scientific challenge was still obtained, as raw-data is still possible to be recorded.
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- 2016
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7. Postprocessing algorithm for automated analysis of pelvic intraoperative neuromonitoring signals
- Author
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Wegner Celine, Krueger Thilo B., Hoffmann Klaus-Peter, Kauff Daniel W., and Kneist Werner
- Subjects
pelvic intraoperative neuromonitoring ,postprocessing algorithm ,signal analysis ,Medicine - Abstract
Two dimensional pelvic intraoperative neuromonitoring (pIONM®) is based on electric stimulation of autonomic nerves under observation of electromyography of internal anal sphincter (IAS) and manometry of urinary bladder. The method provides nerve identification and verification of its’ functional integrity. Currently pIONM® is gaining increased attention in times where preservation of function is becoming more and more important. Ongoing technical and methodological developments in experimental and clinical settings require further analysis of the obtained signals. This work describes a postprocessing algorithm for pIONM® signals, developed for automated analysis of huge amount of recorded data. The analysis routine includes a graphical representation of the recorded signals in the time and frequency domain, as well as a quantitative evaluation by means of features calculated from the time and frequency domain. The produced plots are summarized automatically in a PowerPoint presentation. The calculated features are filled into a standardized Excel-sheet, ready for statistical analysis.
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- 2016
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8. Untersuchungen von ²³⁷Np-Verbindungen mit Hilfe des Moessbauereffektes
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Krueger, Th.
- Subjects
Life sciences ,biology ,ddc:570 - Published
- 1982
9. A comparative study of group IA and IIA homonuclear clusters
- Author
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Stoll, H., Flad, J., Golka, E., and Krüger, Th.
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- 1981
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10. Botulinum toxin therapy of bipolar depression: A case series.
- Author
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Finzi E, Kels L, Axelowitz J, Shaver B, Eberlein C, Krueger TH, and Wollmer MA
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- Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Psychiatric Status Rating Scales, Treatment Outcome, Bipolar Disorder drug therapy, Botulinum Toxins therapeutic use, Neurotoxins therapeutic use
- Abstract
We and others have recently found that botulinum toxin injected into the brow muscles has significant antidepressant properties as compared to placebo in randomized controlled trials in patients with major depressive disorder. However, data for the treatment of bipolar depression with botulinum toxin is lacking. We report here six patients with bipolar disorder experiencing moderate to severe depressive episodes who were treated on a compassionate basis with botulinum toxin given their persistent depressive symptoms and adverse side effects from medications. Four of six patients with bipolar depression experienced a remission following treatment with botulinum toxin, and the other two patients experienced a reduction of depressive symptoms. When the effect of botulinum toxin on the frown muscles began to wear off, depressive symptoms returned and retreatment with botulinum toxin provided successful relief of depressive symptoms again., (Copyright © 2018. Published by Elsevier Ltd.)
- Published
- 2018
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11. Evidence for superior neurobiological and behavioral inhibitory control abilities in non-offending as compared to offending pedophiles.
- Author
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Kärgel C, Massau C, Weiß S, Walter M, Borchardt V, Krueger TH, Tenbergen G, Kneer J, Wittfoth M, Pohl A, Gerwinn H, Ponseti J, Amelung T, Beier KM, Mohnke S, Walter H, and Schiffer B
- Subjects
- Adult, Decision Making, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Neuropsychological Tests, Oxygen blood, Pedophilia diagnostic imaging, Prefrontal Cortex diagnostic imaging, Reaction Time physiology, Young Adult, Criminals psychology, Inhibition, Psychological, Pedophilia physiopathology, Pedophilia psychology, Prefrontal Cortex physiopathology
- Abstract
Neurobehavioral models of pedophilia and child sexual offending suggest a pattern of temporal and in particular prefrontal disturbances leading to inappropriate behavioral control and subsequently an increased propensity to sexually offend against children. However, clear empirical evidence for such mechanisms is still missing. Using a go/nogo paradigm in combination with functional magnetic resonance imaging (fMRI) we compared behavioral performance and neural response patterns among three groups of men matched for age and IQ: pedophiles with (N = 40) and without (N = 37) a history of hands-on sexual offences against children as well as healthy non-offending controls (N = 40). As compared to offending pedophiles, non-offending pedophiles exhibited superior inhibitory control as reflected by significantly lower rate of commission errors. Group-by-condition interaction analysis also revealed inhibition-related activation in the left posterior cingulate and the left superior frontal cortex that distinguished between offending and non-offending pedophiles, while no significant differences were found between pedophiles and healthy controls. Both areas showing distinct activation pattern among pedophiles play a critical role in linking neural networks that relate to effective cognitive functioning. Data therefore suggest that heightened inhibition-related recruitment of these areas as well as decreased amount of commission errors is related to better inhibitory control in pedophiles who successfully avoid committing hands-on sexual offences against children. Hum Brain Mapp 38:1092-1104, 2017. © 2016 Wiley Periodicals, Inc., (© 2016 Wiley Periodicals, Inc.)
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- 2017
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12. Structural brain abnormalities in the frontostriatal system and cerebellum in pedophilia.
- Author
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Schiffer B, Peschel T, Paul T, Gizewski E, Forsting M, Leygraf N, Schedlowski M, and Krueger TH
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- Adult, Brain Mapping, Case-Control Studies, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging methods, Male, Neural Pathways pathology, Organ Size, Cerebellum physiology, Corpus Striatum pathology, Pedophilia pathology, Prefrontal Cortex pathology
- Abstract
Even though previous neuropsychological studies and clinical case reports have suggested an association between pedophilia and frontocortical dysfunction, our knowledge about the neurobiological mechanisms underlying pedophilia is still fragmentary. Specifically, the brain morphology of such disorders has not yet been investigated using MR imaging techniques. Whole brain structural T1-weighted MR images from 18 pedophile patients (9 attracted to males, 9 attracted to females) and 24 healthy age-matched control subjects (12 hetero- and 12 homosexual) from a comparable socioeconomic stratum were processed by using optimized automated voxel-based morphometry within multiple linear regression analyses. Compared to the homosexual and heterosexual control subjects, pedophiles showed decreased gray matter volume in the ventral striatum (also extending into the nucl. accumbens), the orbitofrontal cortex and the cerebellum. These observations further indicate an association between frontostriatal morphometric abnormalities and pedophilia. In this respect these findings may support the hypothesis that there is a shared etiopathological mechanism in all obsessive-compulsive spectrum disorders.
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- 2007
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13. High-dose zolpidem dependence in a patient with chronic facial pain.
- Author
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Krueger TH, Kropp S, and Huber TJ
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- Adult, Chronic Disease, Facial Pain psychology, Female, Humans, Pyridines adverse effects, Substance Withdrawal Syndrome drug therapy, Zolpidem, Facial Pain drug therapy, Pyridines administration & dosage, Substance-Related Disorders drug therapy
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- 2005
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14. The dental anxiety scale and effects of dental fear on salivary cortisol.
- Author
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Krueger TH, Heller HW, Hauffa BP, Haake P, Exton MS, and Schedlowski M
- Subjects
- Adolescent, Female, Humans, Male, Middle Aged, Dental Anxiety diagnosis, Fear, Hydrocortisone analysis, Saliva chemistry, Surveys and Questionnaires
- Abstract
Only a few studies have investigated use of the Dental Anxiety Scale in dental fear-induced neuroendocrine changes. The present study examined 19 female patients, each at two timepoints across an educational and a treatment session within periodontitis therapy. Subjective measures included a visual analogue scale, the STAI State scale, and the Dental Anxiety Scale. Salivary cortisol was measured in parallel across all four timepoints. Although patients were significantly more aroused and anxious prior to the treatment session, salivary cortisol remained unchanged. However, patients with high Dental Anxiety were significantly more aroused and anxious and showed significantly higher salivary cortisol during the educational session than those with low scores on Dental Anxiety. In conclusion, the Dental Anxiety Scale differentiated mean neuroendocrine change between patients scoring low and high for Dental Anxiety and its use as an accurate tool to identify patients with high dental anxiety should be further studied predictively.
- Published
- 2005
- Full Text
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15. Cortisol and heart rate measures during casino gambling in relation to impulsivity.
- Author
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Krueger TH, Schedlowski M, and Meyer G
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- Adult, Cross-Over Studies, Disruptive, Impulse Control, and Conduct Disorders diagnosis, Follow-Up Studies, Humans, Hypothalamo-Hypophyseal System physiopathology, Male, Pituitary-Adrenal System physiopathology, Severity of Illness Index, Surveys and Questionnaires, Disruptive, Impulse Control, and Conduct Disorders blood, Disruptive, Impulse Control, and Conduct Disorders physiopathology, Gambling psychology, Heart Rate physiology, Hydrocortisone blood
- Abstract
Problematic gambling behavior is thought to be influenced by neurobiological as well as environmental factors. In this study, we investigated the relationship among impulsivity, gambling behavior, the cardiovascular system and the hypothalamic-pituitary-adrenal axis activity in blackjack gamblers. Twenty-nine males were continuously monitored before, during and after a 90-min blackjack session in a casino wagering their own money and during a control condition where subjects played cards for accumulation of points. Heart rate and cortisol levels significantly increased with the onset of gambling and remained elevated throughout the test session compared to the control condition. After median split of impulsivity scores, high impulsivity subjects revealed significantly higher heart rate levels compared to the low impulsivity subgroup. Correlation analyses revealed a positive relationship between impulsivity scores and severity of pathological gambling. Impulsivity may be one important factor mediating gambling behavior and its accompanying autonomic response., (Copyright (c) 2005 S. Karger AG, Basel.)
- Published
- 2005
- Full Text
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16. Effects of sexual arousal on lymphocyte subset circulation and cytokine production in man.
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Haake P, Krueger TH, Goebel MU, Heberling KM, Hartmann U, and Schedlowski M
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- Adult, Cross-Over Studies, Humans, In Vitro Techniques, Interleukin-6 metabolism, Lipopolysaccharides pharmacology, Lymphocyte Subsets drug effects, Male, Sympathetic Nervous System immunology, Tumor Necrosis Factor-alpha metabolism, Lymphocyte Subsets metabolism, Neuroimmunomodulation physiology, Orgasm physiology, Sexuality physiology
- Abstract
Objective: Sexual arousal and orgasm induce an increase in sympathetic activity as well as in catecholamine and prolactin plasma concentrations. However, the effects of sexual arousal and orgasm on immune functions in man are unknown. Thus, this study investigated the effects of masturbation-induced orgasm on lymphocyte circulation and cytokine production in healthy young males., Methods: In a crossover design, 11 volunteers completed an experimental condition in which they were asked to masturbate until orgasm and to participate in a control condition without sexual activity. Blood was drawn continuously for determination of endocrine parameters. In addition, leukocyte and lymphocyte subsets were analyzed via flow cytometry, and the production of lipopolysaccharide-induced interleukin 6 and tumor necrosis factor alpha was measured before and then 5 and 45 min after the orgasm., Results: The results confirmed transient increases in adrenaline and prolactin plasma concentrations. Sexual arousal and orgasm increased the absolute number of leukocytes, in particular natural killer cells (CD3-CD16+CD56+), in the peripheral blood. In contrast, T cell (CD3+) and B cell (CD3-CD20+) subpopulations as well as the production of interleukin 6 and tumor necrosins factor alpha remained unaffected by sexual activity., Conclusion: These findings demonstrate that components of the innate immune system are activated by sexual arousal and orgasm.
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- 2004
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17. Absence of orgasm-induced prolactin secretion in a healthy multi-orgasmic male subject.
- Author
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Haake P, Exton MS, Haverkamp J, Krämer M, Leygraf N, Hartmann U, Schedlowski M, and Krueger TH
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- Adult, Feedback, Physiological, Humans, Male, Prolactin blood, Prolactin physiology, Orgasm physiology, Prolactin metabolism
- Abstract
In several studies we have recently demonstrated that orgasm induces prolactin secretion in healthy males and females. This suggests that prolactin may form a feedback regulator of the refractory period following orgasm. To examine this position we investigated the prolactin response of a healthy multi-orgasmic male subject. Blood was drawn continuously during masturbation-induced orgasm. The prolactin response of the case-subject was compared with that of nine healthy adult men with a normal refractory period. The case-subject showed no prolactin response to three orgasms. Data from this multi-orgasmic subject support the hypothesized role of plasma prolactin in contributing to sexual-satiation mechanisms.
- Published
- 2002
- Full Text
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