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    The Virgo O3 run and the impact of the environment (2022)
    IOP
    Details
    Publication Date: 2024-05-03
    Description: Sources of geophysical noise (such as wind, sea waves and earthquakes) or of anthropogenic noise impact ground-based gravitational-wave interferometric detectors, causing transient sensitivity worsening and gaps in data taking. During the one year-long third observing run (O3: from April 01, 2019 to March 27, 2020), the Virgo Collaboration collected a statistically significant dataset, used in this article to study the response of the detector to a variety of environmental conditions. We correlated environmental parameters to global detector performance, such as observation range, duty cycle and control losses. Where possible, we identified weaknesses in the detector that will be used to elaborate strategies in order to improve Virgo robustness against external disturbances for the next data taking period, O4, currently planned to start at the end of 2022. The lessons learned could also provide useful insights for the design of the next generation of ground-based interferometers.
    Description: Published
    Description: 235009
    Description: 5T. Sismologia, geofisica e geologia per l'ingegneria sismica
    Description: JCR Journal
    Keywords: Gravitational waves ; ambient noise ; 04.06. Seismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 2
    Electronic Resource
    Electronic Resource
    Can smoking increase attention in rapid information processing during noise? Electrocortical, physiological and behavioral effects (1989)
    Springer
    Psychopharmacology 98 (1989), S. 75-80 
    Details
    ISSN: 1432-2072
    Keywords: Information processing ; Smoking ; Noise ; EEG ; Event-related potentials ; Cardiovascular ; Endocrinology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This study investigated the effects of smoking on subject-paced visual rapid information processing performance (RIP) under the influence of disturbing noise. The RIP taks required the subjects to detect triads of even or odd digits within a pseudorandom sequence of single digits presented on a screen. Two groups of 12 female habitual smokers who were not allowed to smoke during the last 10 h preceding the test sessions underwent two test sessions each consisting of two RIP trials separated by a smoking period (habitual cigarette) for one group and by a relaxation period without smoking for the second group. Noise disturbance was presented during the second RIP trial of one of the two sessions only. Smoking increased RIP performance, but noise failed to show any measurable effect. EEG analyzed during RIP revealed the expected noise-induced decrease in alpha power. ERP analyses showed a smoking-induced decrease in the CNV-related negativity but no noise effects. The late positive wave (LP) increased after smoking, but to a lesser extent under the noise condition. The analyses of peripheral physiological measures revealed smoking-and noise-induced heart rate acceleration and cutaneous vasoconstriction. Plasma cortisol, prolactin and HGH were also increased after the noise session. The results indicate therefore that smoking increased RIP, whereas noise failed to affect mental performance, although it produced measurable vegetative stress effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00442009
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Left temporal rhythmic electrical activity: a correlate for psychosis? A case report (1999)
    Springer
    Journal of neural transmission 106 (1999), S. 787-794 
    Details
    ISSN: 1435-1463
    Keywords: Keywords: Epilepsy ; psychosis ; EEG ; depth electrodes ; intracranial recordings ; auditory hallucinations ; human.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary. It is well recognized that epileptic patients are at higher risk for acute or chronic psychotic states than non-epileptic subjects. Here we present intracranial depth electrode recordings during a psychotic episode in a 20-year-old woman who was referred for presurgical evaluation. Unrelated to her seizures, she presented acoustic hallucinations and delusions and became agitated for a duration of 18–24 hours. During this period, a new unusual pattern of sharp slow waves was seen semi-rhythmically every 2–3sec from left anterior neocortical temporal areas. Her condition responded well to a treatment with Haloperidol, but not with Benzodiazepines. Ictal and interictal scalp- and depth-EEG recordings outside the psychotic episode as well as MRI-based volumetry, PET, SPECT and neuropsychological testing gave evidence of bilateral temporal and frontal dysfunction. This case report suggests that psychosis in epileptic patients may be based on a bilateral cerebral dysfunction linked together in a pathological network, but with a focal (here: left temporal) driving mechanism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007020050199
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    Paper (German National Licenses)
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