Altered cortical excitability in subjectively electrosensitive patients: Results of a pilot study

Landgrebe, Michael; Hauser, Simone; Langguth, Berthold; Frick, Ulrich; Hajak, Göran; Eichhammer, Peter

doi:10.1016/j.jpsychores.2006.11.007

Cited by 20 publications

(15 citation statements)

References 36 publications

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“…Newer findings in neuropsychology revealed that self-rated electromagnetically hypersensitive persons can be characterized by a significantly reduced intracortical facilitation [Landgrebe et al, 2007]. This may indicate a neurobiological predisposition to increased reactogenicity and even vulnerability concerning environmental influences.…”

Section: Introductionmentioning

confidence: 98%

GSM base stations: Short‐term effects on well‐being

Augner

Florian

Pauser

et al. 2008

Bioelectromagnetics

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The purpose of this study was to examine the effects of short-term GSM (Global System for Mobile Communications) cellular phone base station RF-EMF (radiofrequency electromagnetic fields) exposure on psychological symptoms (good mood, alertness, calmness) as measured by a standardized well-being questionnaire. Fifty-seven participants were selected and randomly assigned to one of three different exposure scenarios. Each of those scenarios subjected participants to five 50-min exposure sessions, with only the first four relevant for the study of psychological symptoms. Three exposure levels were created by shielding devices in a field laboratory, which could be installed or removed during the breaks between sessions such that double-blinded conditions prevailed. The overall median power flux densities were 5.2 microW/m(2) during "low," 153.6 microW/m(2) during "medium," and 2126.8 microW/m(2) during "high" exposure sessions. For scenario HM and MH, the first and third sessions were "low" exposure. The second session was "high" and the fourth was "medium" in scenario HM; and vice versa for scenario MH. Scenario LL had four successive "low" exposure sessions constituting the reference condition. Participants in scenarios HM and MH (high and medium exposure) were significantly calmer during those sessions than participants in scenario LL (low exposure throughout) (P = 0.042). However, no significant differences between exposure scenarios in the "good mood" or "alertness" factors were obtained. We conclude that short-term exposure to GSM base station signals may have an impact on well-being by reducing psychological arousal.

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Section: Introductionmentioning

confidence: 98%

GSM base stations: Short‐term effects on well‐being

Augner

Florian

Pauser

et al. 2008

Bioelectromagnetics

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“…On a neurobiological level, the first evidence for an alteration of cortical functioning as one potential neurobiological correlate of symptom manifestation in these patients has been found recently by measuring cortical excitability using transcranial magnetic stimulation (TMS; Landgrebe et al 2007). These data point to deficiencies in adaptive abilities due to alterations of glutamatergic neurotransmission via N -methyl- d -aspartic acid (NMDA) receptors.…”

Section: Introductionmentioning

confidence: 99%

Cognitive and neurobiological alterations in electromagnetic hypersensitive patients: results of a case-control study

et al. 2008

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“…In the same study, cortical excitability parameters, i.e. inhibition and facilitation, were measured with a classical paired-pulse TMS protocol, showing a reduced intracortical facilitation in EHS subjects compared to both control groups [65]. This study was replicated in 89 EHS subjects and 107 matched normal controls.…”

Section: Functional Correlatesmentioning

confidence: 85%

“…Actually, TMS is a mean for investigating the functional state of the brain. This method was applied to compare EHS and control subjects by Frick et al [64], Landgrebe et al [65,66], from the Department of Psychiatry of the University of Regensburg. In a pilot study comparing an EHS group (n = 30) to two control groups, one with a low level of subjective complaints (n = 28) and the other one with a very high level of complaints (n = 27) [64], there were no significant differences between groups neither in detecting the real magnetic stimulus nor in the objective motor response.…”

Section: Functional Correlatesmentioning

confidence: 99%

Electromagnetic hypersensitivity: The opinion of an observer neurologist

Marc-Vergnes

2010

Comptes Rendus. Physique

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Altered cortical excitability in subjectively electrosensitive patients: Results of a pilot study

Cited by 20 publications

References 36 publications

GSM base stations: Short‐term effects on well‐being

GSM base stations: Short‐term effects on well‐being

Cognitive and neurobiological alterations in electromagnetic hypersensitive patients: results of a case-control study

Electromagnetic hypersensitivity: The opinion of an observer neurologist

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