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Dr. O.H.G. Wilder-Smith

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  • iCalm: wearable sensor and network architecture for wirelessly communicating and logging autonomic activity. (2010)

    Authors:Fletcher, R.R.; Dobson, K.; Goodwin, M.S.; Eydgahi, H.; Wilder-Smith, O.H.G.; Fernholz, D.; Kuboyama, Y.; Hedman, E.B.; Poh, M.Z.; Picard, R.W.
    In:IEEE Transactions on Information Technology in Biomedicine, 14, 215 - 223. ISSN 1089-7771.

    Abstract:

    Widespread use of affective sensing in healthcare applications has been limited due to several practical factors, such as lack of comfortable wearable sensors, lack of wireless standards, and lack of low-power affordable hardware. In this paper, we present a new low-cost, low-power wireless sensor p

  • Increased sympathetic activity in chronic pancreatitis patients is associated with hyperalgesia. (2010)

    Authors:Buscher, H.C.J.L.; Goor, H. van; Sweep, C.G.J.; Lenders, J.W.M.; Wilder-Smith, O.H.G.
    In:Journal of pain & palliative care pharmacotherapy, 24, 362 - 366. ISSN 1536-0539.

    Abstract:

    Pain treatment in chronic pancreatitis patients is difficult, with pain frequently relapsing or persisting. Recent studies suggest that altered central nervous system pain processing underlies the chronic pain state in these patients. There is evidence that increased sympathetic activity may also pl

  • Descending inhibitory pain modulation is impaired in patients with chronic pancreatitis. (2010)

    Authors:Olesen, S.S.; Brock, C.; Krarup, A.L.; Funch-Jensen, P.; Arendt-Nielsen, L.; Wilder-Smith, O.H.G.; Drewes, A.M.
    In:Clinical Gastroenterology and Hepatology, 8, 724 - 730. ISSN 1542-3565.

    Abstract:

    BACKGROUND & AIMS: Pain is a prominent symptom in chronic pancreatitis (CP), but the underlying mechanisms are incompletely understood. We investigated the role of descending pain modulation from supraspinal structures as well as central nervous system sensitization in patients with pain from CP. ME

  • Heterotopic pruritic conditioning and itch--analogous to DNIC in pain? (2010)

    Authors:Laarhoven, A.I.M. van; Kraaimaat, F.W.; Wilder-Smith, O.H.G.; Kerkhof, P.C.M. van de; Evers, A.W.M.
    In:Pain, 149, 332 - 337. ISSN 0304-3959.

    Abstract:

    Pain can be endogenously modulated by heterotopic noxious conditioning stimulation (HNCS) through a mechanism which is known as diffuse noxious inhibitory control (DNIC). Since DNIC can be impaired in patients suffering from chronic pain, a comparable impaired itch inhibition may exist in patients s

  • Role of attentional focus on bodily sensations in sensitivity to itch and pain. (2010)

    Authors:Laarhoven, A.I.M. van; Kraaimaat, F.W.; Wilder-Smith, O.H.G.; Evers, A.W.M.
    In:Acta Dermato-Venereologica, 90, 46 - 51. ISSN 0001-5555.

    Abstract:

    Patients frequently report high levels of physical symptoms, such as itch and pain, which do not completely correspond to pathophysiological findings, possibly indication heightened sensitivity to physical symptoms. Sensitivity to itch and pain is thought to be affected by processes such as attentio

  • Recommendations on terminology and practice of psychophysical DNIC testing. (2010)

    Authors:Yarnitsky, D.; Arendt-Nielsen, L.; Bouhassira, D.; Edwards, R.R.; Fillingim, R.B.; Granot, M.; Hansson, P.; Lautenbacher, S.; Marchand, S.; Wilder-Smith, O.H.G.
    In:European Journal of Pain, 14, 339 - 339. ISSN 1090-3801.

  • Neurophysiological correlates of nociceptive heterosynaptic long-term potentiation in humans. (2010)

    Authors:Broeke, E.N. van den; Rijn, C.M. van; Biurrun Manresa, J.A.; Andersen, O.K.; Arendt-Nielsen, L.; Wilder-Smith, O.H.G.
    In:Journal of Neurophysiology, 103, 2107 - 2113. ISSN 0022-3077.

    Abstract:

    Long-term potentiation (LTP) is a cellular model of synaptic plasticity and reflects an increase of synaptic strength. LTP is also present in the nociceptive system and is believed to be one of the key mechanisms involved in the manifestations of chronic pain. LTP manifested as an increased response

  • Patients with chronic pain after abdominal surgery show less preoperative endogenous pain inhibition and more postoperative hyperalgesia: a pilot study. (2010)

    Authors:Wilder-Smith, O.H.G.; Schreyer, T.; Scheffer, G.J.; Arendt-Nielsen, L.
    In:Journal of pain & palliative care pharmacotherapy, 24, 119 - 128. ISSN 1536-0539.

    Abstract:

    Chronic pain is common and undesirable after surgery. Progression from acute to chronic pain involves altered pain processing. The authors studied relationships between presence of chronic pain versus preoperative descending pain control (diffuse noxious inhibitory controls; DNICs) and postoperative

  • The thalamocortical dysrhythmia hypothesis and the CCI rat model of neuropathic pain (2010)

    Authors:Derksen, M.; Broeke, E.N. van den; Wilder-Smith, O.H.G.; Ullsperger, M.; Jongsma, M.L.A.; Rijn, C.M. van
    In:FENS Abstracts, abstr. no. 173.3

  • Neurophysiological Correlates of Nociceptive Heterosynaptic Long-Term Potentiation in Humans (2010)

    Authors:Broeke, E.N. van den; Rijn, C.M. van; Biurrun Manresa, J.A.; Andersen, O.K.; Arendt-Nielsen, L.; Wilder-Smith, O.H.G.
    In:Journal of Neurophysiology, 103, 2107 - 2113. ISSN 0022-3077.

    Abstract:

    Long-term potentiation (LTP) is a cellular model of synaptic plasticity and reflects an increase of synaptic strength. LTP is also present in the nociceptive system and is believed to be one of the key mechanisms involved in the manifestations of chronic pain. LTP manifested as an increased response

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