The functional relationship between yawning and vigilanceAdrian G Guggisberg
Center of Sleep Medicine, Department of Neurology, Inselspital, University of Berne, CH 3010 Bern, Switzerland
Behav Brain Res 179:159-66. 2007
..The study aimed at testing the widely held hypothesis that yawning is triggered by drowsiness and brings about a reversal or suspension of the process of falling asleep...
- Mapping functional connectivity in patients with brain lesions
Adrian G Guggisberg
Biomagnetic Imaging Lab, Department of Radiology, University of California San Francisco, San Francisco, CA 94143 0628, USA
Ann Neurol 63:193-203. 2008
..Based on the rationale that damaged brain tissue is disconnected from the physiological interactions among healthy areas, this study aimed to map the functionality of brain areas according to their connectivity with other areas...
High-frequency oscillations in distributed neural networks reveal the dynamics of human decision makingAdrian G Guggisberg
Biomagnetic Imaging Lab, Department of Radiology, University of California San Francisco UCSF San Francisco, CA, USA
Front Hum Neurosci 1:14. 2007
..These results suggest that high-gamma oscillations as recorded by MEG allow a reliable reconstruction of decision processes with excellent spatiotemporal resolution...
Why do we yawn?Adrian G Guggisberg
University of Geneva, Department of Clinical Neurosciences, Division of Neurorehabilitation, Avenue de Beau Séjour 26, Geneva 14, Switzerland
Neurosci Biobehav Rev 34:1267-76. 2010
..In humans and some other mammals, yawning is part of the action repertoire of advanced empathic and social skills...
- Localization of cortico-peripheral coherence with electroencephalography
Adrian G Guggisberg
Division of Neurorehabilitation, Department of Clinical Neurosciences, University Hospital Geneva, Geneva, Switzerland
Neuroimage 57:1348-57. 2011
..Here we assess whether valid localizations of coherent cortical networks can also be obtained from high-resolution electroencephalography (EEG) recordings...
- Interplay between yawning and vigilance: a review of the experimental evidence
Adrian G Guggisberg
Department of Clinical Neurosciences, University of Geneva, Geneva, Switzerland
Front Neurol Neurosci 28:47-54. 2010
..A widely held hypothesis posits that yawning increases the arousal level during sleepiness; thus, providing a homeostatic regulation of vigilance...
- The neural basis of event-time introspection
Adrian G Guggisberg
Biomagnetic Imaging Laboratory, Department of Radiology and Biomedical Imaging, University of California, 513 Parnassus Ave S 362, San Francisco, CA 94143 0628, USA
Conscious Cogn 20:1899-915. 2011
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- Why do we yawn? The importance of evidence for specific yawn-induced effects
Adrian G Guggisberg
University of Geneva, Department of Clinical Neurosciences, Division of Neurorehabilitation, Avenue de Beau Séjour 26, 1211 Geneva 14, Switzerland
Neurosci Biobehav Rev 35:1302-4. 2011
..The argument that from an evolutionary perspective, yawns must have a "primitive" physiological function arises from imprecise reasoning...
- Fast oscillations associated with interictal spikes localize the epileptogenic zone in patients with partial epilepsy
Adrian G Guggisberg
Biomagnetic Imaging Laboratory, Department of Radiology, University of California San Francisco, San Francisco, CA 94143 0628, USA
Neuroimage 39:661-8. 2008
..Imaging of spike-locked beta/gamma power changes therefore seems to be a reliable and fast alternative to conventional MEG techniques for localizing epileptogenic tissue, in particular, if more than 50 interictal spikes can be recorded...
- The significance of the sympathetic nervous system in the pathophysiology of periodic leg movements in sleep
Adrian G Guggisberg
Center of Sleep Medicine, Department of Neurology, University of Berne, Inselspital, Bern, Switzerland
Sleep 30:755-66. 2007
..Periodic leg movements in sleep (PLMS) are frequently accompanied by arousals and autonomic activation, but the pathophysiologic significance of these manifestations is unclear...
- Five-dimensional neuroimaging: localization of the time-frequency dynamics of cortical activity
Sarang S Dalal
Department of Radiology, University of California, San Francisco, CA 94143 0628, USA
Neuroimage 40:1686-700. 2008
..This method enables the ultimate promise of MEG and EEG for five-dimensional imaging of space, time, and frequency activity in the brain and renders it applicable for widespread studies of human cortical dynamics during cognition...
- Adaptive reorganization of cortical networks in Alzheimer's disease
Sviatlana Dubovik
Division of Neurorehabilitation, Department of Clinical Neurosciences, University Hospital and University of Geneva, Switzerland
Clin Neurophysiol 124:35-43. 2013
..Here we investigated whether modifications in resting-state functional connectivity (FC) are associated with cognitive function of AD patients...
- Clinical symptoms and alpha band resting-state functional connectivity imaging in patients with schizophrenia: implications for novel approaches to treatment
Leighton B N Hinkley
Department of Radiology and Biomedical Imaging, University of California, San Francisco, California 94143, USA
Biol Psychiatry 70:1134-42. 2011
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- EEG alpha band synchrony predicts cognitive and motor performance in patients with ischemic stroke
Sviatlana Dubovik
Division of Neurorehabilitation, Department of Clinical Neurosciences, University Hospital of Geneva, Geneva, Switzerland
Behav Neurol 26:187-9. 2013
..Ischemic lesions decrease the synchrony of alpha band oscillations between affected brain regions and the rest of the brain. This decrease is linearly related to cognitive and motor deficits observed in the patients...
- Resting state α-band functional connectivity and recovery after stroke
Kelly P Westlake
Department of Radiology and Biomedical Imaging, University of California, San Francisco, 513 Parnassus s362, Box 0628, San Francisco, CA 94143, USA
Exp Neurol 237:160-9. 2012
..These findings support plasticity within a widely distributed neural network and define brain regions in which the extent of network participation predicts post-stroke recovery potential...
- Cortical temporal dynamics of visually guided behavior
Leighton B N Hinkley
Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94143, USA
Cereb Cortex 21:519-29. 2011
..The onset and duration of activity in these areas provides direct evidence for concurrent serial and parallel processing in the human brain during the integration of the sensorimotor inputs necessary for visually guided performance...
- Magnetoencephalographic imaging of resting-state functional connectivity predicts postsurgical neurological outcome in brain gliomas
Phiroz E Tarapore
Department of Neurological Surgery, University of California San Francisco, San Francisco, California 94143 0628, USA
Neurosurgery 71:1012-22. 2012
..The removal of brain tumors in perieloquent or eloquent cortex risks causing new neurological deficits in patients. The assessment of the functionality of perilesional tissue is essential to avoid postoperative neurological morbidity...
- The behavioral significance of coherent resting-state oscillations after stroke
Sviatlana Dubovik
Division of Neurorehabilitation, University Hospital of Geneva, Switzerland
Neuroimage 61:249-57. 2012
..Maps of alpha synchrony computed from a single resting-state EEG recording provide a robust and convenient window into the functionality and organization of cortical networks with numerous potential applications...
- Sleepiness is not always perceived before falling asleep in healthy, sleep-deprived subjects
Uli S Herrmann
Department of Neurology, Inselspital, Bern University Hospital, and University of Bern, Switzerland
Sleep Med 11:747-51. 2010
..To test whether subjects spontaneously signal sleepiness before falling asleep under monotonous conditions...
- Significance of coil orientation for motor evoked potentials from nasalis muscle elicited by transcranial magnetic stimulation
Patrick Dubach
Department of Neurology, University Hospital, Inselspital, 3010 Berne, Switzerland
Clin Neurophysiol 115:862-70. 2004
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- Spatial localization of cortical time-frequency dynamics
Sarang S Dalal
Mental Processes and Brain Activation Lab, INSERM U821, 69675 Bron, France
Conf Proc IEEE Eng Med Biol Soc 2007:4941-4. 2007
..This method enables non-invasive five-dimensional imaging of space, time, and frequency activity in the brain and renders it applicable for widespread studies of human cortical dynamics...
